I love your channel so much. I don't know squat about machining or metal/woodworking, I'm pretty much an IT guy, yet I watch every new video you put out. You have an amazing voice, and camera presence. I absolutely admire that, in your age, you went on to make videos on TH-cam, learned the ropes etc. and started putting out content. This shows you're a productive, hard working person, and of course it is incredibly awesome that you have a hobby, like this channel, at your age. Your content is awesome and most definitely is like an encyclopedia for young/future machinists, lathe operators, etc. You are a gem among TH-camrs, MrPete, keep it up and have fun doing it!
Thank you very much for your extremely kind and thoughtful comment. You touched me injust the right place when I needed it. That is very encouraging to hear, and I will forge a head with a renewed vigor and enthusiasm. Please keep watching.
I have to be honest. I’ve been quietly learning from you for many years without any comments. I don’t feel like I often have much of value to add as you cover each subject so thoroughly. I do feel I owe you a thanks though. I’ve learned a great deal from you and I know you put a LOT of effort into your videos. Someday, if the stars align, I’d be honored to shake your hand and thank you in person.
That old lead solder is some of the best I've ever used. My grandpa had spools of the 50/50 and 40/60 i managed to get after he passed. I use sparingly on my personal projects and antique guitar amplifier repairs. I have his old container of Nokorode flux paste too and still prefer it to any of the modern stuff. It wears out modern tips pretty quick but leaves some of the strongest solder joints I've been able to get.
I recently had to machine a 500lb piece of beryllium copper in a Mazak 650 H. It was a coupling for the oil industry. We had to wear full PPE for 3 days and a full cleaning of the coolant pans and filters afterwards. Really nasty stuff. Thanks For What You Do Mr. Pete!!!!
Thanks for the lesson, test in 10 minutes. I had a teacher in high school. He’d give a lesson, for 20 minutes,then drop a test on us. Best teacher, friend and mentor. This was in the early ‘70’s. He was a long time teacher, having taught my dad and his brother at Lanier High School in Macon, Ga, before WW2. Every Saturday morning, there would 10 guys hanging out with him in his backyard. His wife served us lemonade or tea, and cookies. She knew us all. That doesn’t happen anymore. RIP, Guyton Carr. Macon, Ga. Lanier and Stratford Academy
Think that's bad? I had an algebra professor my last semester in college that his final consisted of two problems. When he got through writing on the chalkboard, he turned, smiled at us and walked to his office. We had a professional student that spent about 15 minutes writing and scratching his head, got up and threw his papers into the trash and walked out.
@@mrpete222 Your very welcome. Ok, done with your first three videos on metals. Awesome! Question sir, have you made a lesson on the Machinability Index of the common metals for HSM, the various strengths, weaknesses, and best uses for the different metals. i.e. 12L14 vs. 4140 vs. O1 And, as always Glad to be in your class Mr Peterson
I would like to Thank You For The Many Video You Have Made Available To The Public! In a understandable non bias over your head approach. You Are Truly A Teacher & Knowledge Is Power!!! I will clarify what I'm saying,... When the average Joe can walk away without stretching his head but have a clear understanding what was said: That's A Teacher! There was so many gifted TH-camrs who only talkin to the gifted!!!
Easiest way to double check ferrous metals is to put it against a grinder and watch the pattern of sparks also. High strength steels often spark in a branched shape resembling fireworks. Hot rolled steel is also used in I beams and structural steel girders used in buildings. Although a lot of the large members of steel these days are built up of steel plate welded together for fabricated I beam shapes.
Hello, MrPete, First time commenter here. I'm just here to tell you that there are generations of American men now who really owe you. You are (and must have been) a fine teacher. I wish I had someone like you at high school, but alas. Anyway, I just wanted to give you a vote of appreciation for the entertaining and educational videos. BTW - if you want to go off at a tangent, please do so - it's always somehow entertaining or relevant.
Metallurgy is a very complete and complex science, you're doing a good job at introduction for people that want to open up to that world... Nicely explained for all to understand.... 👍👍
The Sn63 bar of solder is "Eutectic" solder (63% Tin and 47% Lead). It has no plastic state so it goes from liquid-to-solid, and vice versa, immediately. It is the preferred solder to use in high reliability soldering, Way better to use than 60/40 or the crappy "lead-free" solder.
I do learn a few thing here from Mr. Pete. I've also learned other things about making things from metal on TH-cam. One thing, I learned was how to heat treat and temper metals myself, using a small charcoal grill, a small blower, used motor oil, and our kitchen oven. I had to make some metal parts for my motorcycle to mount a larger gas tank, a solo seat. I used a lawn mower blade cut into two 7 inch sections, that I had to heat with a propane torch to red hot, before I could cut it with a hack saw and drill out some holes. I also used some small angle iron from a bed frame to make the cross bar for the springs under the back of my solo seat. I also had to heat them to red hot to cut and drill those as well. After I made the parts, I heated them red hot in the charcoal grill and using the blower to get them red/orange hot, then dunked them in used motor oil for a few minutes. They came out with a black oily coating and rust proof. I then heated them in the oven at 175 degrees for an hour.
I'll be honest, I can identify aluminum from other metals but that's it. I graduated in high school in 2002 and even by then metal shop and auto shop classes were being phased out from high schools. My father was a machinist but he never passed down the knowledge and dropped machining because he just didn't want to do it anymore. This is I watch your videos and other machinist channels because it interests me. Thanks for all the videos.
I found a guy that works in the gas drilling business that had baskets of large brass Lufkin plumb bobs for sale at scrap prices. He had at least 100 of them. Some had been run over by heavy equipment and some looked nearly new after you knocked the dirt and mud off of them. He said the guys that did the job before his crew comes in uses them and just leaves them laying all over the place when they were done with their part of the job. He would pick them up out of the dirt after they left the site. I've been looking for a project to use them. They are 1" diameter by 6" long. I've been itching to find a project worthy of chucking them up in the lathe.
I took three of them that looked brand new after I cleaned them and put them aside. The rest of the ones I bought that had some small dents or small gouges in them got put into my stock bins.
Wifes name and pic. Mark here. I don't know much about metals so I found this video to be one of my favorites. Keep up the good work sir. Thanks for teaching an old dog some new tricks.
Thanks for the refresher Mr Pete, and yes I watched the original three and enjoyed them. Sometimes you need to know all the technical information. Now where's my coffee!
Great presentation Mr. Peterson! Drill rod is handy in the shop and has hundreds of uses. We may also add that some of these metals are toxic when being worked such as zinc. I never worked at Woodstock Die Cast when it was in operation but we drink bottle water here!
Great primer on metals. Re.Solder: The temperature at which solder hardens will vary with the ratio of the metals. As lead is added to pure tin, the melting temperature of the alloy will drop to some minimum (the eutectic point), and then rise again . The mixture for this minimum is a ratio of 63% Tin to 37% lead, and is the preferred alloy to use for electronics, as even if disturbed while cooling, one metal will not come out of solution before the other. This is why most solder used for electronics work is 60% tin and 40% lead, as this ratio is close enough to the eutectic point without having to control the ratio exactly. For non-electrical soldering, 50% x 50% is close enough. Another eutectic mixture for solder is 62% tin, 36% lead and 2% silver. This solder was developed to reduce the leaching of silver out of special terminal strips that had silver fired on to the ceramic material of which the strips were made.
Mr. Pete, Good point on buying a tool in order to use the steel to make other tools. I learned a long time ago that I could buy steel or aluminum baking pans for far less that it cost to purchase the raw sheet goods.
63/37 solder is eutectic for electronics, that bar was for a wave solder machine. Beryllium copper tools are used to repair MRI machines, and are quite expensive.
One of my favorites is 415 free machining stainless steel. Turns nicely and you can get a mirror finish that will last with polishing. Works a treat for machine handles in that they will look chrome finished and are rust resistant. O-1 oil hardening tool steel isn't much trouble to machine. It isn't "gummy" like hot roll and machines cleanly leaving a nice finish. 0-1 is stable and doesn't wiggle and warp like cold rolled steel does when you cut large amounts off relieving the stresses from the rolling process. You do have to slow down speeds and feeds with 0-1 a little bit and use cutting oil with high speed cutting tools or saw blades. Cheers from NC/USA
Another good video. My thoughts follow. Zinc, being a sacrificial plating is, to me, horrendous for automotive applications. The best plating for bolts is Cadmium and AN hardware (military) is still cad plated. Cad plating offers lubricity when torquing. Bolts that are black oxide coated must have the coating cleaned off the threads for accurate torque readings. Tree huggers have caused the skyrocketing prices with all the regulations. I like clean water and air. What they did was too quick and not well planned so companies that did plating closed, outsourced, went to another type of coating or replaced things with plastic. Meanwhile, Asia will kill the world with pollution without our help.
My favorite acid core solder is the Kester Metral Mender. I have used it since the mid 1960's. It flows so well and works good. Like you said, it's hard to find anymore.
Years ago came across a business that recycled a lot of different things from gold plating on circuit boards to different metals. They had a worker sitting at the end of conveyor belt filled with all kinds of metal. Some he know what material they were made from just by looking. Others he could tell by color of sparks from a binding wheel. Back in the early 70's our scrape company would not take any stainless steel. One machine shop that I used to do all of their electrical work would machine brass and some expensive cylinders. They had to weigh finished product and all the scrape that was returned to company that they did work for. They made the mistake of leaving a few 55 gallon drums of brass and 3 or 4 drums of aluminum scrape outside overnight due to moving in new equipment. Some strong people came by and stole all of the scrape.
Gold for the mistress- silver for the maid- copper for the craftsman, cunning at his trade- "GOOD!", cried the Baron, sitting in the hall, "but iron, cold iron, is master of them ALL!" - Kipling
Most people won't come across it but I still have some bars of 99.99% pure iron I bought some 30 years ago. Pure iron doesn't rust, just gets a very thin coat of red after many years, and it's very soft. Awesome for ornamental work.
I milled HSS tool bits to make wedges in my last video for the jacking mechanisim of my Morse Taper wedge lock. It certainly doesn't cut like 12L14 but it can be done especially if you need some hard long wearing material.
hello mr pete your off to a real good start on explaining the different typs of metals. i enjoyed part one and found it quite interesting. looking forward to part two.thanks.
MR PETE, YOU ARE A WEALTH OF GREAT INFORMATION! LOVE THAT YOU'RE ALWAYS LOOKING TO LEARN AND MORE IMPORTANTLY SJARING SO MUCH OF WA YOU'VE COME TO KNOW. OUE WORLD WOULD BE NE A MUCH BETTER PLACE IF THERE WERE MORE LIKW YOU!? KEEP ON MAKING THIS CHANNEL THE GEM THAT IT IS! MANY THAKS TO YOU SIR.
I was impressed enough to subscribe. I just looked at some of your other videos. I suggest that the high school attempt to make bronze like they did iron. Involve the history class, too. It was a huge part of our history going from stone age to bronze age. Also, please ask the steel mill to have their safety coordinator go over your process. My brother is one from a steel mill. You need hand rails on that platform, for example. The shop teacher will sleep better. Get input from a metallurgist, too. Fine job.
If you ever find that you need to machine some copper, shop for the C14500 Tellurium/Cu alloy. It still has 93% of the electrical conductivity of pure copper, but it has "just enough" alloy to specifically make it as easy as is possible to machine. It was developed by the electrical industry to help with the machining of large electrical contacts. Pure copper is quite horrible to drill and tap to any useful depth. Also, clear chips extra often with all Cu alloys.
Great video once again Mr. Pete, thank you! Perhaps worth mentioning since sometimes machined parts are later welded to complete a project: Leaded alloys such as 12L14 don't weld particularly well.
I enjoyed the video tubalcain! I really don't have a problem identifying the various metals,... I have a big problem with wood!!!! LOL My hat is off to those guys who can do both metal & wood. On the other hand I can do a little! Patternworks out of wood: I prefer clay! Because I can keep using it over & over & over again as long as I keep it wet. Wood is So Forgiven! In the context of making mistakes over metal.
A36 is another material that doesn’t machine very good sorta like hot rolled. We used to get these thick burn out cylinders with thick walls, they had nasty scale and bumps around the edges. Very tough on inserts until you get under that scale surface. And the surface finish sucked...lol after machining😚
Great video for us weekend machinists, Mr. Pete. I liked the beryllium section. I have some beryllium copper Pings which play much better golf than I do. No danger of sparking however as I will never generate enough club head speed!
In my working life I carried a lot of various expensive alloy steels, aerospace and aero engine alloy. The scrap yards had a spectrum analysis machine which told them what it was.
Admittedly these scrap dealers did not have anything to do with the ordinary steel or cast iron etc. They were all Sheffield based, where the exotic alloys were produced.
Very good video with lots of information. Die cast is still heavily used in the electrical area for fittings for conduit and I have had scrap yard employees dump my die cast in with my aluminum. So even at the scrap yard there is confusion as I don't think they process die cast with aluminum. I may be wrong on that.
Excellent video - thank you very much! As regards stainless steel, the chips that come off are needles and razors that you will find all over your house with your feet and hands. There is no better way to ensure your life partner hates your machine shop hobby (except for the noise).
Cold roll is way more dense. Hence it’s popularity. Way stronger than hot rolled. Called roll steel can be used for shafting Eliminating the Need for alloy steels. The grain is tightened being cooled roll.
I can identify most metals at a glance; I have been able to identify a few since childhood. The trickiest thing is seeing past coatings and patina; brass and copper is extremely bright when freshly machined or sanded, copper when fresh has no brownness at all, but is only vibrant pink, while fresh brass is a brilliant whitish yellow. However, brass and copper fade quickly, within a few hours if not oiled. But beware, aluminum can be anodized to look just like copper or brass, but aluminum is far lighter and will not tarnish under ordinary conditions. Check the weight!
The brassy looking bolt is propably chromated If you're not sure if something is cast aluminium or zinc you can put some acid on an unused area. If it bubbles and turns dark, it's zinc. Aluminium won't react at all, but it will react to sodium hydroxide (drain cleaner).
@@mrpete222 I also did some experiments for electrolytic removal of chrome layers from brass parts. Surprisingly it also dissolved the zinc from the outer layers of the brass, so that the surface looks exactly like copper. Evil minds could see a way to cheat scrap yards this way. btw. the chromated parts are often not exactly brass colored, but have a slightly rainbow color to them, going more greenish or redish in some spots.
Copper: really surprised that "windings" were not included, whether electric motors or solenoids; also copper household wiring. However in that form, they will not be something used for machining, thus not something necessary to be identified. Great video.
I still get Lead/Tin solder from my local market, which I use for electronics work. Of course it's very thin (about 1mm or so in diameter), not like the heavy gauge stuff you have there.
I never use lead free solder. I know it's not going away but the hysteria over lead is completely over-done. Touching lead does nothing to you. Please folks just do some reading. Everything is dangerous if it's in the wrong form or even used in excess (try drinking water non stop). I'll stop before I get carried away. Knowledge is our friend =)
Same here - only leaded solder for electronics work. The lead free stuff used in manufacturing is responsible for the early death of a lot of devices, just to brittle... Oh, the 63 marked stuff islikely 63 percent tin 37 percent lead - the mix with lowest melting point and quickest to firm up when heatsource is removed. Good for not being in a slushy/pasty state for a period if the joint might move/flex, giving a poor connection in electronics.
GOOD FOR YOU!! THE LEAD-FREE SOLDER ISN'T GOOD ENOUGH TO BE AWFUL!!! I LIKE TO USE THE "CARDAS AUDIO QUAD EUTECTIC" SOLDER- IT'S RELATIVELY EXPENSIVE, BUT IT'S WORTH IT!!
Hi Mr Pete, Great video and I'm glad that you included stainless steel in here. I have argued several times to people that most stainless is magnetic. I used all kinds of stainless at work and it comes up all the time where a person swears to me that I am lying because a magnet sticks to it. So I try to explain to then about the chromium content but I seen to loose them there. However I did score 10 4'x4' x 14ga sheets of 430 stainless for $5 per sheet because the guy didn't know what he had. I didn't try to cheat him. I just simply asked how much for these stainless sheets? He replied with "those aren't stainless, their magnetic." So I said Okay I'll take them all. :)
zinc is also highly unsafe to work around... nothing like heating it up and killing yourself semi quickly. I think we are better off with limiting the use as reuse options are extremely limited.
Are the compositions of hot-rolled and cold-rolled different? If you heat-treated hot-rolled would it machine better, or differently at least? What is it about the hot-rolled that makes it less easy-machining?
It may be interesting to some if you applied your knowledge to everyday things. Like using a kitchen environment, common tractor(8n ford- john deere A), walk around a early 70s car etcetc. Younger people have grown up with so much plastic metals are like voodoo too them. Some young guys I know can hardly tell cast iron from a heavy sheet iron, think a chrome bumper is a pure metal etcetc. Your method and manner of teaching (excellent btw) applied that way could help a lot of those younger people. Thanks for sharing
Thank you very much. That’s exactly why I made the video. I can’t believe how little some people know about materials. They can’t tail chrome plated plastic from chrome plated steel
@@mrpete222 well you are the shop teacher! Haha..... you're videos are always full of information. In your shop setting I understand completely why and how you go through it. Unfortunately I think many youth can't connect the dots from your bench to other settings like I described. Makes me wonder where this world is headed that's for sure.
I love your channel so much. I don't know squat about machining or metal/woodworking, I'm pretty much an IT guy, yet I watch every new video you put out. You have an amazing voice, and camera presence. I absolutely admire that, in your age, you went on to make videos on TH-cam, learned the ropes etc. and started putting out content. This shows you're a productive, hard working person, and of course it is incredibly awesome that you have a hobby, like this channel, at your age. Your content is awesome and most definitely is like an encyclopedia for young/future machinists, lathe operators, etc. You are a gem among TH-camrs, MrPete, keep it up and have fun doing it!
Thank you very much for your extremely kind and thoughtful comment. You touched me injust the right place when I needed it. That is very encouraging to hear, and I will forge a head with a renewed vigor and enthusiasm. Please keep watching.
@@mrpete222 thank you! Sending lots of love from Slovakia
I have to be honest. I’ve been quietly learning from you for many years without any comments. I don’t feel like I often have much of value to add as you cover each subject so thoroughly. I do feel I owe you a thanks though. I’ve learned a great deal from you and I know you put a LOT of effort into your videos. Someday, if the stars align, I’d be honored to shake your hand and thank you in person.
Thank you very much for watching it’s good to hear from you. I think I have a lot of silent watchers
I'm drinking coffee and learning from Mr. Pete; it must be Saturday morning.
Yes
lol Thats exactly what I'm doing.
Saturday night here
Regular metals yes wood not so good at just basics who better to learn from then Mr. Pete 222
same here saturday night.
That old lead solder is some of the best I've ever used. My grandpa had spools of the 50/50 and 40/60 i managed to get after he passed. I use sparingly on my personal projects and antique guitar amplifier repairs. I have his old container of Nokorode flux paste too and still prefer it to any of the modern stuff. It wears out modern tips pretty quick but leaves some of the strongest solder joints I've been able to get.
I recently had to machine a 500lb piece of beryllium copper in a Mazak 650 H. It was a coupling for the oil industry. We had to wear full PPE for 3 days and a full cleaning of the coolant pans and filters afterwards. Really nasty stuff. Thanks For What You Do
Mr. Pete!!!!
Wow
Thanks for the lesson, test in 10 minutes.
I had a teacher in high school. He’d give a lesson, for 20 minutes,then drop a test on us.
Best teacher, friend and mentor.
This was in the early ‘70’s. He was a long time teacher, having taught my dad and his brother at Lanier High School in Macon, Ga, before WW2.
Every Saturday morning, there would 10 guys hanging out with him in his backyard. His wife served us lemonade or tea, and cookies. She knew us all. That doesn’t happen anymore.
RIP, Guyton Carr. Macon, Ga. Lanier and Stratford Academy
Thanks
Think that's bad? I had an algebra professor my last semester in college that his final consisted of two problems. When he got through writing on the chalkboard, he turned, smiled at us and walked to his office. We had a professional student that spent about 15 minutes writing and scratching his head, got up and threw his papers into the trash and walked out.
12L14?
Hold on, I'll go back and view your first three.
You Sir, are a National Treasure.
Thank you.
Thanks
@@mrpete222 Your very welcome.
Ok, done with your first three videos on metals. Awesome!
Question sir, have you made a lesson on the Machinability Index of the common metals for HSM, the various strengths, weaknesses, and best uses for the different metals. i.e. 12L14 vs. 4140 vs. O1
And, as always
Glad to be in your class Mr Peterson
I just traded for a bundle of 30, 12ft sticks of 3/4 round bar with white tips. Wish I new what it is. Anyone?
I would like to Thank You For The Many Video You Have Made Available To The Public! In a understandable non bias over your head approach.
You Are Truly A Teacher & Knowledge Is Power!!!
I will clarify what I'm saying,... When the average Joe can walk away without stretching his head but have a clear understanding what was said: That's A Teacher!
There was so many gifted TH-camrs who only talkin to the gifted!!!
Thank you very much for the compliment
Valuable information, thank you Mr. Pete! Looking forward to part 2.
Thanks
A semester-worth of content in just 30 minutes! Thanks for the refresh; very much appreciated!
Thanks
Love your channel . i recognize a lot of your tools from when i was a kid sneaking around my grandfather's workshop....
👍
Easiest way to double check ferrous metals is to put it against a grinder and watch the pattern of sparks also. High strength steels often spark in a branched shape resembling fireworks. Hot rolled steel is also used in I beams and structural steel girders used in buildings. Although a lot of the large members of steel these days are built up of steel plate welded together for fabricated I beam shapes.
Thanks
Hello, MrPete, First time commenter here. I'm just here to tell you that there are generations of American men now who really owe you. You are (and must have been) a fine teacher.
I wish I had someone like you at high school, but alas. Anyway, I just wanted to give you a vote of appreciation for the entertaining and educational videos. BTW - if you want to go off at a tangent, please do so - it's always somehow entertaining or relevant.
Thank you very much. I’m glad you like my videos. Keep watching and have a merry Christmas
Metallurgy is a very complete and complex science, you're doing a good job at introduction for people that want to open up to that world...
Nicely explained for all to understand.... 👍👍
Thank you Pierre. Is it cold up there yet? It was very cold here this week with some snow.
@@mrpete222
Sounds about the same as what we're getting, much colder than usual, fells like January weather...
The Sn63 bar of solder is "Eutectic" solder (63% Tin and 47% Lead). It has no plastic state so it goes from liquid-to-solid, and vice versa, immediately. It is the preferred solder to use in high reliability soldering, Way better to use than 60/40 or the crappy "lead-free" solder.
Thank you, good to know.
I do learn a few thing here from Mr. Pete. I've also learned other things about making things from metal on TH-cam. One thing, I learned was how to heat treat and temper metals myself, using a small charcoal grill, a small blower, used motor oil, and our kitchen oven. I had to make some metal parts for my motorcycle to mount a larger gas tank, a solo seat. I used a lawn mower blade cut into two 7 inch sections, that I had to heat with a propane torch to red hot, before I could cut it with a hack saw and drill out some holes. I also used some small angle iron from a bed frame to make the cross bar for the springs under the back of my solo seat. I also had to heat them to red hot to cut and drill those as well. After I made the parts, I heated them red hot in the charcoal grill and using the blower to get them red/orange hot, then dunked them in used motor oil for a few minutes. They came out with a black oily coating and rust proof. I then heated them in the oven at 175 degrees for an hour.
Sounds like you did a good job
I'll be honest, I can identify aluminum from other metals but that's it. I graduated in high school in 2002 and even by then metal shop and auto shop classes were being phased out from high schools. My father was a machinist but he never passed down the knowledge and dropped machining because he just didn't want to do it anymore. This is I watch your videos and other machinist channels because it interests me. Thanks for all the videos.
Thank you for watching
I found a guy that works in the gas drilling business that had baskets of large brass Lufkin plumb bobs for sale at scrap prices. He had at least 100 of them. Some had been run over by heavy equipment and some looked nearly new after you knocked the dirt and mud off of them. He said the guys that did the job before his crew comes in uses them and just leaves them laying all over the place when they were done with their part of the job. He would pick them up out of the dirt after they left the site. I've been looking for a project to use them. They are 1" diameter by 6" long. I've been itching to find a project worthy of chucking them up in the lathe.
Wow, those are too valuable to use as project stock. Nice find
I took three of them that looked brand new after I cleaned them and put them aside. The rest of the ones I bought that had some small dents or small gouges in them got put into my stock bins.
No wonder you were a teacher. You are very good at explaining things.
Thanks
This is a video/instruction I have been waiting a lifetime for. Best demos ever on metal id. Thanks MR. Pete.
Thank you very much
Wifes name and pic. Mark here. I don't know much about metals so I found this video to be one of my favorites. Keep up the good work sir. Thanks for teaching an old dog some new tricks.
Thank you, I’m glad you like it
I don't remember the last time I heard someone use the word neophyte in actual daily speech. Excellent word usage sir.
Are they allowed near schools?
Thanks
very informative for me as I have no prior knowledge about metals and thank you for making the video, I enjoyed watching it
👍👍
Thanks for the refresher Mr Pete, and yes I watched the original three and enjoyed them. Sometimes you need to know all the technical information. Now where's my coffee!
Thanks lol
I thought for sure you would throw that drill guide into the trash can. Still one of my favorite Mr. Pete moments!
lol
Great presentation Mr. Peterson! Drill rod is handy in the shop and has hundreds of uses. We may also add that some of these metals are toxic when being worked such as zinc. I never worked at Woodstock Die Cast when it was in operation but we drink bottle water here!
Thanks Mr Pete I needed this information I try to watch all your videos
Yes thanks
Great primer on metals. Re.Solder: The temperature at which solder hardens will vary with the ratio of the metals. As lead is added to pure tin, the melting temperature of the alloy will drop to some minimum (the eutectic point), and then rise again . The mixture for this minimum is a ratio of 63% Tin to 37% lead, and is the preferred alloy to use for electronics, as even if disturbed while cooling, one metal will not come out of solution before the other. This is why most solder used for electronics work is 60% tin and 40% lead, as this ratio is close enough to the eutectic point without having to control the ratio exactly. For non-electrical soldering, 50% x 50% is close enough. Another eutectic mixture for solder is 62% tin, 36% lead and 2% silver. This solder was developed to reduce the leaching of silver out of special terminal strips that had silver fired on to the ceramic material of which the strips were made.
Thanks
Mr. Pete,
Good point on buying a tool in order to use the steel to make other tools. I learned a long time ago that I could buy steel or aluminum baking pans for far less that it cost to purchase the raw sheet goods.
Yes, isn’t that amazing?
63/37 solder is eutectic for electronics, that bar was for a wave solder machine. Beryllium copper tools are used to repair MRI machines, and are quite expensive.
Thank you for that info
THANK YOU...for sharing. Watched and very much enjoyed. "Clear as mud".
👍👍
One of my favorites is 415 free machining stainless steel. Turns nicely and you can get a mirror finish that will last with polishing. Works a treat for machine handles in that they will look chrome finished and are rust resistant.
O-1 oil hardening tool steel isn't much trouble to machine. It isn't "gummy" like hot roll and machines cleanly leaving a nice finish. 0-1 is stable and doesn't wiggle and warp like cold rolled steel does when you cut large amounts off relieving the stresses from the rolling process. You do have to slow down speeds and feeds with 0-1 a little bit and use cutting oil with high speed cutting tools or saw blades.
Cheers from NC/USA
Thanks
Thank you very much for passing on your vast knowledge.
Another good video. My thoughts follow. Zinc, being a sacrificial plating is, to me, horrendous for automotive applications. The best plating for bolts is Cadmium and AN hardware (military) is still cad plated. Cad plating offers lubricity when torquing. Bolts that are black oxide coated must have the coating cleaned off the threads for accurate torque readings. Tree huggers have caused the skyrocketing prices with all the regulations. I like clean water and air. What they did was too quick and not well planned so companies that did plating closed, outsourced, went to another type of coating or replaced things with plastic. Meanwhile, Asia will kill the world with pollution without our help.
Also true
My favorite acid core solder is the Kester Metral Mender. I have used it since the mid 1960's. It flows so well and works good. Like you said, it's hard to find anymore.
Years ago came across a business that recycled a lot of different things from gold plating on circuit boards to different metals. They had a worker sitting at the end of conveyor belt filled with all kinds of metal. Some he know what material they were made from just by looking. Others he could tell by color of sparks from a binding wheel. Back in the early 70's our scrape company would not take any stainless steel. One machine shop that I used to do all of their electrical work would machine brass and some expensive cylinders. They had to weigh finished product and all the scrape that was returned to company that they did work for. They made the mistake of leaving a few 55 gallon drums of brass and 3 or 4 drums of aluminum scrape outside overnight due to moving in new equipment. Some strong people came by and stole all of the scrape.
Beware of thieves in the night
Metallurgist
A person who can look at a Platinum Blonde and determine whether she is a Virgin Metal or a Common Ore .
001DesertRat Zzzziiiinnnnggggg
It is spelled "Metallurgist" .
@@EddieVBlueIsland -- Thank You , duly noted & corrected .
Really enjoyed this presentation. Frequently when working with antique cars I run into a material known as "german silver".
Yes, I have heard that term and I have forgotten what the composition is
Gold for the mistress-
silver for the maid-
copper for the craftsman, cunning at his trade-
"GOOD!", cried the Baron, sitting in the hall, "but iron, cold iron, is master of them ALL!"
- Kipling
I love it. I’ve vaguely remember it, what is the title? I might put that quote in one of my videos thank you very much
"Just as cold as a witches... heart". Yep, that's how the saying goes!
cold as a vampire's demeanor
Most people won't come across it but I still have some bars of 99.99% pure iron I bought some 30 years ago. Pure iron doesn't rust, just gets a very thin coat of red after many years, and it's very soft. Awesome for ornamental work.
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I milled HSS tool bits to make wedges in my last video for the jacking mechanisim of my Morse Taper wedge lock. It certainly doesn't cut like 12L14 but it can be done especially if you need some hard long wearing material.
I will check that out, thanks
I appreciate this content so much! It's not even in my field of interest but the thoroughness of it is very interesting...thx!
Thank you very much
This was a good primer on basic metals.
Looking forward to next ones.
Thanks!
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hello mr pete your off to a real good start on explaining the different typs of metals. i enjoyed part one and found it quite interesting. looking forward to part two.thanks.
Thanks
MR PETE,
YOU ARE A WEALTH OF GREAT INFORMATION!
LOVE THAT YOU'RE ALWAYS LOOKING TO LEARN AND MORE IMPORTANTLY
SJARING SO MUCH OF WA YOU'VE COME TO KNOW.
OUE WORLD WOULD BE NE A MUCH BETTER PLACE IF THERE WERE MORE LIKW YOU!?
KEEP ON MAKING THIS CHANNEL THE GEM THAT IT IS!
MANY THAKS TO YOU SIR.
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One of your tool bits in your HSS lathe pile was carbide, may want to sort that out to its own container. Great video!
Whoops
Great video and great descriptions. Thank you.
Well done Lyle,,,in the Army the saying was if it moves salute it ,,if it doesn’t polish it Regards Frank
lol
Very well presented summary. I will be watchingching for the second half
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I was impressed enough to subscribe. I just looked at some of your other videos. I suggest that the high school attempt to make bronze like they did iron. Involve the history class, too. It was a huge part of our history going from stone age to bronze age. Also, please ask the steel mill to have their safety coordinator go over your process. My brother is one from a steel mill. You need hand rails on that platform, for example. The shop teacher will sleep better. Get input from a metallurgist, too. Fine job.
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Very helpful and useful information Mr. Pete, always enjoy this program.
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If you ever find that you need to machine some copper, shop for the C14500 Tellurium/Cu alloy. It still has 93% of the electrical conductivity of pure copper, but it has "just enough" alloy to specifically make it as easy as is possible to machine. It was developed by the electrical industry to help with the machining of large electrical contacts. Pure copper is quite horrible to drill and tap to any useful depth. Also, clear chips extra often with all Cu alloys.
Thank you, that sounds good
Great video once again Mr. Pete, thank you! Perhaps worth mentioning since sometimes machined parts are later welded to complete a project: Leaded alloys such as 12L14 don't weld particularly well.
Thanks Mr Pete, very informative.
I wish i had this video growing up.
I learned the long way.
Ill be using it to teach my kids because we homeschool.
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I enjoyed the video tubalcain! I really don't have a problem identifying the various metals,... I have a big problem with wood!!!! LOL
My hat is off to those guys who can do both metal & wood.
On the other hand I can do a little! Patternworks out of wood: I prefer clay!
Because I can keep using it over & over & over again as long as I keep it wet.
Wood is So Forgiven! In the context of making mistakes over metal.
Thank you for watching. There are hundreds of species of woods, hard to learn them all
Thank you, now I know why I had trouble turning the axles on the barn door wheels I made. They were hot rolled.
A36 is another material that doesn’t machine very good sorta like hot rolled. We used to get these thick burn out cylinders with thick walls, they had nasty scale and bumps around the edges. Very tough on inserts
until you get under that scale surface. And the surface finish sucked...lol
after machining😚
Thanks Mr Pete, a very useful lesson. Looking forward to the next one.
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Good information. Just purchased my first lathe. Thank you
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Great video for us weekend machinists, Mr. Pete. I liked the beryllium section. I have some beryllium copper Pings which play much better golf than I do. No danger of sparking however as I will never generate enough club head speed!
lol
Great edutainment tutorial on metals. A very helpful video. Really enjoyed this.
Thanks
In my working life I carried a lot of various expensive alloy steels, aerospace and aero engine alloy. The scrap yards had a spectrum analysis machine which told them what it was.
Really, my scrap yard has a magnet, LOL
Admittedly these scrap dealers did not have anything to do with the ordinary steel or cast iron etc. They were all Sheffield based, where the exotic alloys were produced.
Mr Pete has a lot of cool stuff.
Yes
Pewter is almost pure tin you can pick it up in thrift stores. Thanks for the lesson.
Nice overview. Tough subject to cover. My materials classes took two semesters to cover.
And even that is just enough to learn that you don't know anything
Very good video with lots of information. Die cast is still heavily used in the electrical area for fittings for conduit and I have had scrap yard employees dump my die cast in with my aluminum. So even at the scrap yard there is confusion as I don't think they process die cast with aluminum. I may be wrong on that.
Mon when I first started welding I almost learned the hard way. Welding on something that caught on fire and smoked out the shop.
Yes lol
Class in session. I wish I had you when I was in school, I would have gotten so much more information. You are the bast!
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Very informative, looking forward to part two.
Thanks
Thank you for sharing your knowledge.
Excellent video - thank you very much! As regards stainless steel, the chips that come off are needles and razors that you will find all over your house with your feet and hands. There is no better way to ensure your life partner hates your machine shop hobby (except for the noise).
lol
Cold roll is way more dense. Hence it’s popularity. Way stronger than hot rolled. Called roll steel can be used for shafting Eliminating the Need for alloy steels. The grain is tightened being cooled roll.
Thank Pete nice to get back to brass tacks cheers from OZ.
I can identify most metals at a glance; I have been able to identify a few since childhood. The trickiest thing is seeing past coatings and patina; brass and copper is extremely bright when freshly machined or sanded, copper when fresh has no brownness at all, but is only vibrant pink, while fresh brass is a brilliant whitish yellow. However, brass and copper fade quickly, within a few hours if not oiled. But beware, aluminum can be anodized to look just like copper or brass, but aluminum is far lighter and will not tarnish under ordinary conditions. Check the weight!
Thank you those are good points and very true
Terrific! Thanks Mr. Pete!
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Very good MrPete, thanks.
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Good show, thanks for sharing!
increible, thank you so much for the information, time and good intentions
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The brassy looking bolt is propably chromated
If you're not sure if something is cast aluminium or zinc you can put some acid on an unused area. If it bubbles and turns dark, it's zinc. Aluminium won't react at all, but it will react to sodium hydroxide (drain cleaner).
Thank you, that’s interesting
@@mrpete222 I also did some experiments for electrolytic removal of chrome layers from brass parts. Surprisingly it also dissolved the zinc from the outer layers of the brass, so that the surface looks exactly like copper. Evil minds could see a way to cheat scrap yards this way.
btw. the chromated parts are often not exactly brass colored, but have a slightly rainbow color to them, going more greenish or redish in some spots.
Copper: really surprised that "windings" were not included, whether electric motors or solenoids; also copper household wiring. However in that form, they will not be something used for machining, thus not something necessary to be identified. Great video.
Yes
I still get Lead/Tin solder from my local market, which I use for electronics work.
Of course it's very thin (about 1mm or so in diameter), not like the heavy gauge stuff you have there.
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I never use lead free solder. I know it's not going away but the hysteria over lead is completely over-done. Touching lead does nothing to you. Please folks just do some reading. Everything is dangerous if it's in the wrong form or even used in excess (try drinking water non stop). I'll stop before I get carried away. Knowledge is our friend =)
Same here - only leaded solder for electronics work. The lead free stuff used in manufacturing is responsible for the early death of a lot of devices, just to brittle...
Oh, the 63 marked stuff islikely 63 percent tin 37 percent lead - the mix with lowest melting point and quickest to firm up when heatsource is removed. Good for not being in a slushy/pasty state for a period if the joint might move/flex, giving a poor connection in electronics.
GOOD FOR YOU!! THE LEAD-FREE SOLDER ISN'T GOOD ENOUGH TO BE AWFUL!!!
I LIKE TO USE THE "CARDAS AUDIO QUAD EUTECTIC" SOLDER- IT'S RELATIVELY EXPENSIVE, BUT IT'S WORTH IT!!
Thanks Mr. Pete! I was very edutained :-)
lol
Looking forward to your take on Inconel and Titanium for the home shop.
Thank you very much for this excellent video.
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Hi Mr Pete, Great video and I'm glad that you included stainless steel in here. I have argued several times to people that most stainless is magnetic. I used all kinds of stainless at work and it comes up all the time where a person swears to me that I am lying because a magnet sticks to it. So I try to explain to then about the chromium content but I seen to loose them there. However I did score 10 4'x4' x 14ga sheets of 430 stainless for $5 per sheet because the guy didn't know what he had. I didn't try to cheat him. I just simply asked how much for these stainless sheets? He replied with "those aren't stainless, their magnetic." So I said Okay I'll take them all. :)
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Thank you for the lesson, sir.
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zinc is also highly unsafe to work around... nothing like heating it up and killing yourself semi quickly. I think we are better off with limiting the use as reuse options are extremely limited.
Yes
Thanks for the video mrpete.
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Usually the 400 Series Stainless is slightly magnetic. Most SS from China that is not for Industrial use (300 Series) is 400 Series and will rust.
Are the compositions of hot-rolled and cold-rolled different? If you heat-treated hot-rolled would it machine better, or differently at least? What is it about the hot-rolled that makes it less easy-machining?
It may be interesting to some if you applied your knowledge to everyday things. Like using a kitchen environment, common tractor(8n ford- john deere A), walk around a early 70s car etcetc. Younger people have grown up with so much plastic metals are like voodoo too them. Some young guys I know can hardly tell cast iron from a heavy sheet iron, think a chrome bumper is a pure metal etcetc. Your method and manner of teaching (excellent btw) applied that way could help a lot of those younger people. Thanks for sharing
Thank you very much. That’s exactly why I made the video. I can’t believe how little some people know about materials. They can’t tail chrome plated plastic from chrome plated steel
@@mrpete222 well you are the shop teacher! Haha..... you're videos are always full of information. In your shop setting I understand completely why and how you go through it. Unfortunately I think many youth can't connect the dots from your bench to other settings like I described. Makes me wonder where this world is headed that's for sure.
Look forward to No2, Thanks MrP
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You can also get Bismuth sinkers for your fishing weights.
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Thanks for sharing sir.
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Lot of good information here.
Thanks
I watched those three earlier videos 3-4 times each!
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I do scrap metal and knew most of this but still interesting. Thanks
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Excellent presentation.
Thanks
I found this extremely informative.
Thanks