Start with the amount of sterling silver you want to make. Then multiply by 0.925 to get the amount of 999 fine silver you must add. Multiply by 0.074 to get the amount of copper you need. Use 7.4% and not 7.5 % to ensure that you meet the minimum required 92.5% pure silver in order to stamp it with 925. Your result will be a bit lighter than your intended amount, by about 0.1%. Corrections can be made to make sure you have an amount in excess of your desired amount, but this formula should be used regardless to ensure your silver meets the requirements.
You are correct but I like this formula (Total weight of .999FS) x (7.5/92.5) = weight of copper needed to make sterling. This way we can grab scrap .999FS , weigh it, and then do the math to determine how much copper to add. Now we have the weight of silver and copper to mix and smelt
It doesn't take much to figure out that you want 92 1/2 parts pure silver and 7 1/2 parts of pure copper. Do this with a plan total of 100 g, and it's so easy it's unreal. You can use the same thing on 10 g. Or you can do this with ounces. The formula works just fine you just need to calculate you got a total of 100 parts 7 1/2 of them copper and the other 92 1/2 silver. But you can get good results just doing 93% silver and 7% copper. You easily exceeded all requirements, and you're a little less tarnished on your end product
I believe there is a mistake here... this way you have have calculated the copper weight out of the silver weight instead of the alloy weight combined. The math should be: 31.1÷0.925= 33.6 this is the final sterling weight. Meaning you have to add 2.5g copper and you're done
I have a question about your method. I understand .925 sterling silver to be 92.5% silver and 7.5% other (i.e. copper). By your method, you are not creating that percentage balance in the silver. You are adding 2.3g of copper to an already measured 31.1g of silver, which makes a combined weight of 33.4g. With this new weight, your new percentages are 93.1% silver and 6.9% copper. To correct this, I would suggest that you subtract the 2.3g weight from your 31.1g silver before adding the 2.3g of copper, that way you combined weight still totals at 31.1g and your percentages should be correct. Enjoy your videos!
In this case I would treat this as though you have 100% because you have a scale here with a 3 significant figures. Instead of multiplying 0.075, take your original amount of silver and divide it by 0.925 . Then subtract from that your original amount.
Me alegra que lo hayas mencionado. Es como si dijera que a 100 gramos de plata pura se deben agregar 7.5 gramos, lo cual daría 107.5 gramos perdiendo la proporción. Lo correcto sería 92.5 gramos de plata y 7.5 de cobre.
Thank you, I have been thinking of making my own wire and sheets; I just acquired a rolling mill so the plan was in motion. The formula helps a lot. Buying silver/ sterling that is in sheet or wire adds up quickly, while buying shot and making your own saves a tonne. Thank you
Your math is wrong. Adding 2.3g copper to 31.1g of 99.9% silver will result in 93.1% silver by weight. What you want to do instead is: (31.1*0.999/0.925)-31.1=2.488g copper
*THIS IS ACTUALLY INCORRECT* using your numbers 31.1g silver requires 2.3014g non-silver. If you add these weights together you have a final product weighing 33.4014g. For a final product of 33.4014g to be 92.5% pure it needs to contain only 30.89g grams of silver (33.4014 x 0.925 = 30.89), whereas you used 31.1g of .999 pure silver (31.0689g pure silver) You would also want 7.5% of your final product (33.4014g) to be non-silver. Meaning you would want it to contain (33.4014 x 0.075) of non-silver which equals 2.505105g of non-silver. What you've done wrong is work out that you want 7.5% of your starting silver weight to be non-silver when actually you wanted *7.5% of your FINISHING ALLOY WEIGHT* to be non-silver Real equation is AG = starting weight of 0.999 silver in grams Total non-silver required = (((AGx0.999)÷92.5)x7.5)-(0.001xAG)
Thanks! I would absolutely do this. I can buy rounds for much less than finished sterling. I also cast, so making my own grain is a plus. I have a flat rolling mill for sheet and draw my wire into the various shapes and sizes I need.
Technically, if you’re wanting to utilize all that precision in your scale, you should definitely adhere to using 5 significant figures worth of precision in your calculations. Since you’ve weighed out 31.112g of 99.9% purity silver, you can only assume a maximum amount of pure silver at 31.081g. Divide that by the mass proportion of sterling silver at .925 and you get a total alloy mass of 33.601g. You then subtract the 31.112g you weighed out from the total mass of the copper and silver alloy and you get 2.489g of Copper that needs to be added to achieve a perfect 92.500% sterling silver blend. The blend you made is 93.1% silver.
Thankfully, his calculation error was on the conservative side, which is especially good for people with less precise scales or sloppier weighing skills. I wonder if he uses this technically incorrect calculation on purpose for that reason…
I've read quite a few of the comments and I'm glad to see that I was not the only one to see that the math is incorrect. The .931 that this math creates is closer to Argentinium silver, which has a minimum of.940 I believe. But, alas, this formula does not make .925 sterling silver. However, it's still legally sterling silver by U.S.A. standards and may legally be stamped as such being that it contains more than the minimum .925 to meet the legal threshold.
One thing with working with pure silver is that it work hardens and works well for making chain as long as the links are thick enough. I made a few necklace chains with wire that is around 1.5-2 millimeters thick for the links and they stay together just fine. But it's great to know how to make .925 in a simplified way as other videos have been too complicated. And it looks like your rolling mills are from Pepe Tools.👍
Thanks for this process video … buying sheet & wire is getting ridiculous with the price of silver at around $30 oz spot right now. I have the opportunity to buy .999 at 99 cents over spot and I’m considering trying to roll my own sheet, not to mention recycling all of my scrap.
The formula you used here would make .931 silver. To get the amount of copper to add from the starting amount of silver, divide the mass of pure silver by 0.925 which yields the total weight of sterling you can make. From this you can subtract the weight of pure silver you are adding to get the amount of copper that needs to be added. To get the equation, we start with the fact that the purity of silver in the sterling (expressed as a decimal from 0.000 to 1.000) is the amount of silver per amount of sterling. Sterling purity (0.925) = Silver weight / Sterling weight Rearranging the equation (using a = b/c -> c = b/a) will show that the silver weight divided by 0.925 gets the weight of sterling. Sterling weight = Silver weight / Sterling purity (0.925) If you know how much silver you have and weight of sterling it can make, then subtract the weight of silver from the weight of sterling and you get the amount of copper to add. Copper weight = Sterling weight - Silver weight Combining the two equations by replacing the weight of sterling will get you a way to calculate the amount of copper to add from just the weight of pure silver you are starting with. Copper weight = (Silver weight / 0.925) - Silver weight
I was 100% going to do this even if I didn't find any instructions on it I knew it could be done so I was going to try, but I'm very glad to know that I was not very far off on technique thanks for the informative video
For clarification for me, when you add a sprinkle of borax to the silver shot, the borax soaks up the impurities and then they become attached to the crucible, is that correct? I've seen people stir with a graphite rod , what's that do? Thank you buddy.
I found this very interesting as I work in the complete opposite direction and refine sterling silver into pure silver. I've actually never liked sterling due to the copper. I find it always has that metallic/coppery taste and I just can't stand it. But still the process of making sterling is interesting from a chemistry perspective.
@@Dan-ji4db Lol...no. But sterling silverware does tend to go into ones mouth at times. :) Even the taste left on my fingers after handling sterling really bothers me. I also find the colour and sheen isn't quite as "silvery" which would make sense.
I don't like elemental copper because it darkening the silver faster + changing the beautiful silver color a little bit, can you replace copper to Aluminum? and, I heard about Argenteum silver alloy
Why not pure silver.I work only with pure silver,it has such a wonderful colour.I dont know what idiot came up with the idea to add copper to silver.Its ruining the colour,it becomes black instead of white.
It really don't matter much, I think in this video it was just some wd-40 you can also just not turn on the o2 on your torch and cover it in soot and that will work the same.
Thank you for the video. I bought new silver 925 jewelry, but it is less shiny than expected. I wonder how I can converted to brighter like pricy brands
Hi. Like you videos, very informative. Can you give advice if you know where is good place to buy gold materials for making some jewelry for hobbyists, thank you
I am picking this up as a hobby but I still have a lot to learn especially with the mixing of the gold copper and silver like for example for one gram of gold how much copper and silver should I put in it help me out please I appreciate it
If you have silver that has been heated too many times and reticulated, would adding copper return it to a non reticulated state? Great video, good to know the copper amount to add.
Always super informative!!! Thanks Randy!! Cant wait til I have my set up to start making my own sheet and wire!! Hopefully this coming year. 😜 In the meantime I purchase ready made sheet and wire and save all my scraps😁
The first 1000 people to use the link will get a free trial of Skillshare Premium Membership: skl.sh/gomeowcreations12201 Math is hard so let me break it down for you so it's easy to understand so you can also make your own 925 sterling silver from 999 fine silver. 😁👍 Here are a lot of the items I used in this video: Combo Rolling Mill - bit.ly/ComboRollingMill Wire Only Rolling Mills - bit.ly/WireRollingMills Basic Mapp Gas Torch - amzn.to/3rdnROo Oxygen & MAPP Torch Setup (Much hotter but tanks sold secretly ) - amzn.to/3pbYVW1 Oxygen Tank Small - amzn.to/3apH7T1 MAP-Pro Gas 2x Small - amzn.to/2KEnxrq Acetylene Oxygen Setup like mine - amzn.to/3ajSGLw Basic Smith Little Torch Five Tips - bit.ly/SmithLittleTorch5tips Rose Bud Torch End - amzn.to/3krLoaF Heating Tripod - amzn.to/31BEYyg Crucible for Casting - amzn.to/31ARCxr Borax Powder 1lb - amzn.to/2ISMQoA Cheap Metal Melting Furnace - amzn.to/2H6IPwf Electro-Melt Melting Furnace - bit.ly/Electro-MeltMeltingFurnace Sheet Cake Pan - amzn.to/3nwF1nO Adjustable Ingot Mold - bit.ly/IngotMold 2 Reversible Wire and Plate Ingot Mold - amzn.to/3aqrzP2 Graphite Casting Ingot Mold - amzn.to/34njuGQ 1 OZ .999 Pure Silver Shot/Grain - amzn.to/34s63pc 1 Pound 99.9+% Pure Raw Copper - amzn.to/37wRe6P ---------------------------------------------------------------------------------------------------------- If you are looking for more tools and materials that I use, well you're in luck! I made a page on my website just for that and I'm updating all the time so bookmark it to stay up to date: GomeowCreations.com/tools-and-materials GomeowCreations.com/partners-discount-codes *If you buy any of the tools or materials from my list I will make a small commission at no extra charge to you and it helps support the channel* "This video was sponsored by Skillshare" ---------------------------------------------------------------------------------------------------------- If you would like to directly support the channel you can do so in a few different ways. 1. Like, comment and share my videos 2. You can make a one time donation via Paypal of any amount www.paypal.me/gomeowcreations 3. You can sign up a monthly donation via my patreon for as little as $1 per month www.patreon.com/GomeowCreations 4. You can sign up a monthly donation via my Subscribestar for as little as $1 per month www.subscribestar.com/gomeowcreations 5. Just watching my videos helps out too and I'm happy to see that I have been able to help some may people get into jewelry making. #making925 #silver #jewellerymaking #jewelrymaking #goldmaking #silversmithing #diy #gomeowcreations
Hey Randy, where do you get your pure copper from? I like to know what reputable sources to buy from. Also, does it matter on the type of copper? I worked in a machine shop for a few years and there were some different kinds that came through the shop
I have a smith oxy/acet and a electric furnace. I haven't cast either yet and was wondering which is more economical? An electric furnace running at 1800watts for an hours would seem pricey maybe for electricity. Also, what level shade of glasses would be good for the smith torch? Thanks
I liked your video and it was very informative. I'm just getting interested in making my own sterling silver pieces in jewelry making. Are there places where you can use people's equipment or have them teach you how to make sterling silver pieces? I am a total beginner and just wondering where to start. Thanks!
Why sterling silver,its such a ugly silver,they ruined the beatiful colour of the silver with copper.Pure silver is beatiful more white than white gold.And the alloy for soldering you can make by yourself 4%zinc and 4% indium for hard alloy and 5% zinc and 7% indium for soft alloy.Sterling silver you get everywhere but jewelery from pure silver is very rare and than very expensive.
Great video as usual but I was wondering how to turn the 90% silver into 92.5% ? I make alot of coin jewelry and would like to turn my scrap 90% into 925. Can you please help me with the math if I wanted to make an ounce of 925 using the 90%...I know you have to use so much 999 but I don't know the math. Thanks
The following formula will give you the minimum amount of fine silver to add to your 90% silver coins so that the alloy can be co side red Stirling Silver: (Weight of 90% silver coins)x(0.1/0.075 - 1) OR (Weight of 90% silver coins)x0.334
thank you . great demo. i buy my sterling silver from RioGrande. just to let you know that an ounce of fine silver cost 1 dollar more than sterling silver from that supplier !. so why go through the trouble and pay more to make sterling silver ??!!.
You can do what you like but I wanted to have fine silver on hand if I needed it. How I look at it, I'm going to have to melt the metal anyways so I can just mix it on the spot and make what I need at the time. I can make the mix and making it right into a casting or ingot as well.
thank you for sharing this i have question, i have silver coins which is 90% silver and i want to make it sterling silver 92.5% what is the method i should do? thank you
Hey! A scale that does grams and ounces... That's about all the materials I actually have on hand. Glad to see I have something I don't need to order. 😂
That arithmetic is wrong. 31.104g = 1 troy ounce. If you add 2.3g to 31.104g, like you did in this videos, you get 33.404g. That 33.404g alloy of silver and copper contains 6.8% copper and 93.2% silver. Sterling silver is 92.5% silver by weight.
Hi... I am here as I am kinda curious about silver. I got a sterling silver earrings. I was wondering whether it will tarnish or not. So I ended up watching your video. Yay.
Boil water and put your sliver in the boiling water with Tin foil shiny side up and put in a tea spoon of baking soda and bam all the Tarnish is gone 100%
@@GomeowCreations thank you for replying so fast! I wanted to melt some of the thinner wires to run through my rolling mill to make a cuff bracelet but so far I've only made rings. Any suggestions? Do I put borax in the copper also?
@@GomeowCreations acetylene and Smiths little torch. Is there a melting tip I can get for it? I wish you would do a video.on melting recycled copper. You make everything easy to understand.
Thanks for the video, appreciate the craftsmanship! Would you consider adding the correct math to the description? As is seems to run counter to your intent, 93.1% silver is not sterling, right?
Don’t you make an alloy of like 930 silver? I do it just to be sure if I solder the piece, the total ratio of the complete product is 925 or higher. Thats why I make 950 silver just to be really sure even if 930 is technically enough.
So for my own personal jewelry I could add extra copper but I’m assuming it would start losing that white brilliant color if I were to do this. I will play around and see how far I can push it especially where I like my jewelry darkened with a patina. But I do want the look of a nice high silver shine on the raised parts so I’ll have a play. And PLEASE if anyone wants to attack me and inform me of what the laws are then spare me because I did say for MY OWN JEWELRY! 😂
Its including 1964 on quarters and dimes that are 90% silver not before and i think the pennies are 1981 and before with some 1982 pennies that are 95% copper and 5%zinc
The combined weight will be 33.4gr... 31.1gr(amount of .999 silver) / 33.4gr (silver+copper) = 93.11% not 92.5%. Meaning too much silver, or is my math wrong?
@@GomeowCreations Actually, even better - I've read online that it's better to err on the "over" percentage, if one is at all worried about their reputation. Thanks for the great video!
Its crazy to me that sterling silver costs more than fine silver! Even if you can find sterling silver in ingot or grain form, it costs more than fine!
Start with the amount of sterling silver you want to make. Then multiply by 0.925 to get the amount of 999 fine silver you must add. Multiply by 0.074 to get the amount of copper you need. Use 7.4% and not 7.5 % to ensure that you meet the minimum required 92.5% pure silver in order to stamp it with 925. Your result will be a bit lighter than your intended amount, by about 0.1%. Corrections can be made to make sure you have an amount in excess of your desired amount, but this formula should be used regardless to ensure your silver meets the requirements.
0000000
You are correct but I like this formula
(Total weight of .999FS) x (7.5/92.5) = weight of copper needed to make sterling.
This way we can grab scrap .999FS , weigh it, and then do the math to determine how much copper to add. Now we have the weight of silver and copper to mix and smelt
Thanks for the info!
It doesn't take much to figure out that you want 92 1/2 parts pure silver and 7 1/2 parts of pure copper. Do this with a plan total of 100 g, and it's so easy it's unreal. You can use the same thing on 10 g.
Or you can do this with ounces. The formula works just fine you just need to calculate you got a total of 100 parts 7 1/2 of them copper and the other 92 1/2 silver.
But you can get good results just doing 93% silver and 7% copper. You easily exceeded all requirements, and you're a little less tarnished on your end product
I believe there is a mistake here... this way you have have calculated the copper weight out of the silver weight instead of the alloy weight combined. The math should be: 31.1÷0.925= 33.6 this is the final sterling weight. Meaning you have to add 2.5g copper and you're done
I have a question about your method. I understand .925 sterling silver to be 92.5% silver and 7.5% other (i.e. copper). By your method, you are not creating that percentage balance in the silver. You are adding 2.3g of copper to an already measured 31.1g of silver, which makes a combined weight of 33.4g. With this new weight, your new percentages are 93.1% silver and 6.9% copper. To correct this, I would suggest that you subtract the 2.3g weight from your 31.1g silver before adding the 2.3g of copper, that way you combined weight still totals at 31.1g and your percentages should be correct.
Enjoy your videos!
Yeah, you are right and thanks for pointing that out. 😅👍
I’m glad someone made that clear because I was thinking it while I was watching his math
@@GomeowCreations another simple way would be to just weigh out .926 troy ounces of fine silver and then top up to a full ounce with the copper. done.
In this case I would treat this as though you have 100% because you have a scale here with a 3 significant figures.
Instead of multiplying 0.075, take your original amount of silver and divide it by 0.925 . Then subtract from that your original amount.
Me alegra que lo hayas mencionado. Es como si dijera que a 100 gramos de plata pura se deben agregar 7.5 gramos, lo cual daría 107.5 gramos perdiendo la proporción. Lo correcto sería 92.5 gramos de plata y 7.5 de cobre.
Thank you, I have been thinking of making my own wire and sheets; I just acquired a rolling mill so the plan was in motion. The formula helps a lot. Buying silver/ sterling that is in sheet or wire adds up quickly, while buying shot and making your own saves a tonne. Thank you
Yeah it really does and you can use the stuff you had extra from projects to make back into wire and sheet
great video. answered the exact question i had about making my own sterling.
Your math is wrong. Adding 2.3g copper to 31.1g of 99.9% silver will result in 93.1% silver by weight.
What you want to do instead is:
(31.1*0.999/0.925)-31.1=2.488g copper
*THIS IS ACTUALLY INCORRECT*
using your numbers 31.1g silver requires 2.3014g non-silver. If you add these weights together you have a final product weighing 33.4014g.
For a final product of 33.4014g to be 92.5% pure it needs to contain only 30.89g grams of silver (33.4014 x 0.925 = 30.89), whereas you used 31.1g of .999 pure silver (31.0689g pure silver)
You would also want 7.5% of your final product (33.4014g) to be non-silver. Meaning you would want it to contain (33.4014 x 0.075) of non-silver which equals 2.505105g of non-silver.
What you've done wrong is work out that you want 7.5% of your starting silver weight to be non-silver when actually you wanted *7.5% of your FINISHING ALLOY WEIGHT* to be non-silver
Real equation is
AG = starting weight of 0.999 silver in grams
Total non-silver required = (((AGx0.999)÷92.5)x7.5)-(0.001xAG)
as a biochemist, this video gave me anxiety.
First time viewer here. Very interesting and informative. You are very well spoken and you don't waste time. I appreciate that so much!
😁
Thanks! I would absolutely do this. I can buy rounds for much less than finished sterling. I also cast, so making my own grain is a plus. I have a flat rolling mill for sheet and draw my wire into the various shapes and sizes I need.
This was really helpful, I cast some sterling silver after I watched this and it turned out great! Thank you so much!
Good stuff. I need to try that water cast grain thing. nearly all of my scrap silver is in large peaces after castings. Thanks.
Yeah it's a good way to make it smaller
@@GomeowCreations hi do you make necklaces?
@@GomeowCreations hl
Peaces
Technically, if you’re wanting to utilize all that precision in your scale, you should definitely adhere to using 5 significant figures worth of precision in your calculations. Since you’ve weighed out 31.112g of 99.9% purity silver, you can only assume a maximum amount of pure silver at 31.081g. Divide that by the mass proportion of sterling silver at .925 and you get a total alloy mass of 33.601g. You then subtract the 31.112g you weighed out from the total mass of the copper and silver alloy and you get 2.489g of Copper that needs to be added to achieve a perfect 92.500% sterling silver blend.
The blend you made is 93.1% silver.
Thankfully, his calculation error was on the conservative side, which is especially good for people with less precise scales or sloppier weighing skills. I wonder if he uses this technically incorrect calculation on purpose for that reason…
I regularly cast rings using that exact bezomatic torch and it works fine for me. Melts sterling no problem.
I've read quite a few of the comments and I'm glad to see that I was not the only one to see that the math is incorrect. The .931 that this math creates is closer to Argentinium silver, which has a minimum of.940 I believe. But, alas, this formula does not make .925 sterling silver. However, it's still legally sterling silver by U.S.A. standards and may legally be stamped as such being that it contains more than the minimum .925 to meet the legal threshold.
One thing with working with pure silver is that it work hardens and works well for making chain as long as the links are thick enough. I made a few necklace chains with wire that is around 1.5-2 millimeters thick for the links and they stay together just fine. But it's great to know how to make .925 in a simplified way as other videos have been too complicated. And it looks like your rolling mills are from Pepe Tools.👍
I work with 1,1mm links and they are fine too.Pure silver isn't as soft as they say and has a whiter colour than sterling silver.
Wow nice! You do a great job explaining everything. Your a great teacher!
Well thank you very much😊👍
Thanks for this process video … buying sheet & wire is getting ridiculous with the price of silver at around $30 oz spot right now. I have the opportunity to buy .999 at 99 cents over spot and I’m considering trying to roll my own sheet, not to mention recycling all of my scrap.
The formula you used here would make .931 silver. To get the amount of copper to add from the starting amount of silver, divide the mass of pure silver by 0.925 which yields the total weight of sterling you can make. From this you can subtract the weight of pure silver you are adding to get the amount of copper that needs to be added.
To get the equation, we start with the fact that the purity of silver in the sterling (expressed as a decimal from 0.000 to 1.000) is the amount of silver per amount of sterling.
Sterling purity (0.925) = Silver weight / Sterling weight
Rearranging the equation (using a = b/c -> c = b/a) will show that the silver weight divided by 0.925 gets the weight of sterling.
Sterling weight = Silver weight / Sterling purity (0.925)
If you know how much silver you have and weight of sterling it can make, then subtract the weight of silver from the weight of sterling and you get the amount of copper to add.
Copper weight = Sterling weight - Silver weight
Combining the two equations by replacing the weight of sterling will get you a way to calculate the amount of copper to add from just the weight of pure silver you are starting with.
Copper weight = (Silver weight / 0.925) - Silver weight
How's that .931??
Could you explain the math in getting that please?
I couldn't figure it out yet.
I have a ninteen forty four sterling silver quarter for dest high auctioning MO
Thanks that was super helpful
Awesome video I’m looking to alloy fine silver and platinum for jewelry
I was 100% going to do this even if I didn't find any instructions on it I knew it could be done so I was going to try, but I'm very glad to know that I was not very far off on technique thanks for the informative video
What is the temperature does the silver and copper for appropriate
Pickling-pickle juice? How long do you leave it in the pickling juice
Guru Drona👌👌👌👌
A teacher who can put things directly into our brains
I'm happy that it was understandable 😊
@@GomeowCreations you are indeed incredible!💐💐💐💐💐
What kinda material/metal do you use to solder silver and gold
For clarification for me, when you add a sprinkle of borax to the silver shot, the borax soaks up the impurities and then they become attached to the crucible, is that correct? I've seen people stir with a graphite rod , what's that do? Thank you buddy.
Yes and the carbon rod is to help mix the metals.
Also de impurities get atacched to the graphite
I found this very interesting as I work in the complete opposite direction and refine sterling silver into pure silver. I've actually never liked sterling due to the copper. I find it always has that metallic/coppery taste and I just can't stand it. But still the process of making sterling is interesting from a chemistry perspective.
Are you eating silver??
@@Dan-ji4db Lol...no. But sterling silverware does tend to go into ones mouth at times. :) Even the taste left on my fingers after handling sterling really bothers me. I also find the colour and sheen isn't quite as "silvery" which would make sense.
Enjoyed your video and I gave it a Thumbs Up
Great job man, what kind of gas torch do you use, to melt silver. Mine is too cold, I have to use a better one.
I'm using a Smith's little torch with a rosebud tip running off oxygen and acetylene
I don't like elemental copper because it darkening the silver faster + changing the beautiful silver color a little bit, can you replace copper to Aluminum? and, I heard about Argenteum silver alloy
Why not pure silver.I work only with pure silver,it has such a wonderful colour.I dont know what idiot came up with the idea to add copper to silver.Its ruining the colour,it becomes black instead of white.
Hi! Love the video. Thank you!! May I ask which oil do you use in the ingot molds? Regular kitchen oil?
It really don't matter much, I think in this video it was just some wd-40 you can also just not turn on the o2 on your torch and cover it in soot and that will work the same.
@@GomeowCreations Thank you very much!!
This is awesome. Thank you.
@GOMEOW WHERE DO YOU GET YOUR SILVER SHOT? GREAT VIDEO, THANK YOU!
bit.ly/925-SterlingSilverCastingGrain
Fascinating.. loved it! Thanks again for another awesome tutorial! 😀 You also have amazing tools, really encouraging and inspiring..
Well thank you and I'm happy you liked it 😊 I have more videos to come if things go right this weekend
Great viddy! Thanks for the math on sterling silver
Thanks and no problem 😊👍
Copperhead bbs, are 100% copper.
excellent video !!! can you help me plz if i want 950 silver what you would be the analogies???
That’s sketchy because platinum is usually the only metal stamped 950.
Hi there, a very informative video,. What is borax in chemical terms?
Where do people buy the silver gravel? Are there wholesalers online for hobbyists or do you have to make it yourself?
Do you need to stir the metals in an electric crucible?
Want ask..we must put it copper or alloy..please teach me
to make 952 silver you have to put copper into it.
Thank you for the video. I bought new silver 925 jewelry, but it is less shiny than expected. I wonder how I can converted to brighter like pricy brands
Do you mean you need to polish it to be shiny or you want it to be more of a bright white in color?
Hi. Like you videos, very informative. Can you give advice if you know where is good place to buy gold materials for making some jewelry for hobbyists, thank you
How did you melt the copper I have the same set up and I can't melt my copper
I am picking this up as a hobby but I still have a lot to learn especially with the mixing of the gold copper and silver like for example for one gram of gold how much copper and silver should I put in it help me out please I appreciate it
How do you brake in a new crucible? Or do you just use it straight away?
Love the video.
th-cam.com/video/xr6caKULdYo/w-d-xo.html
Hello there... great video... if love to buy some already made flattened metal
Perfect video great job thank you
Thanks 😁
Also I want to add never use mapp gas for anything platinum. You should only use O2 and not mapp for platinum the catalytic reaction happens.cheers
If you have silver that has been heated too many times and reticulated, would adding copper return it to a non reticulated state? Great video, good to know the copper amount to add.
hi, what do you mean your silver has been heated too many times?
Hey! love your video. I was wondering where you buy your silver shot??
Hi, how much pure silver should i used for melting one oz scrap silver? thank you
Always super informative!!! Thanks Randy!! Cant wait til I have my set up to start making my own sheet and wire!! Hopefully this coming year. 😜 In the meantime I purchase ready made sheet and wire and save all my scraps😁
Excellent, helpful video. Thanks.
Thanks
The first 1000 people to use the link will get a free trial of Skillshare Premium Membership: skl.sh/gomeowcreations12201
Math is hard so let me break it down for you so it's easy to understand so you can also make your own 925 sterling silver from 999 fine silver. 😁👍
Here are a lot of the items I used in this video:
Combo Rolling Mill - bit.ly/ComboRollingMill
Wire Only Rolling Mills - bit.ly/WireRollingMills
Basic Mapp Gas Torch - amzn.to/3rdnROo
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MAP-Pro Gas 2x Small - amzn.to/2KEnxrq
Acetylene Oxygen Setup like mine - amzn.to/3ajSGLw
Basic Smith Little Torch Five Tips - bit.ly/SmithLittleTorch5tips
Rose Bud Torch End - amzn.to/3krLoaF
Heating Tripod - amzn.to/31BEYyg
Crucible for Casting - amzn.to/31ARCxr
Borax Powder 1lb - amzn.to/2ISMQoA
Cheap Metal Melting Furnace - amzn.to/2H6IPwf
Electro-Melt Melting Furnace - bit.ly/Electro-MeltMeltingFurnace
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2 Reversible Wire and Plate Ingot Mold - amzn.to/3aqrzP2
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1 OZ .999 Pure Silver Shot/Grain - amzn.to/34s63pc
1 Pound 99.9+% Pure Raw Copper - amzn.to/37wRe6P
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*If you buy any of the tools or materials from my list I will make a small commission at no extra charge to you and it helps support the channel*
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#making925 #silver #jewellerymaking #jewelrymaking #goldmaking #silversmithing #diy #gomeowcreations
Is it better to buy your silver to have it made for example like a Cuban link chain and take it in or just buy the chain outright
Great video👍. Thank you so much, it was very helpful and well explained 😊.
Hey Randy, where do you get your pure copper from? I like to know what reputable sources to buy from. Also, does it matter on the type of copper? I worked in a machine shop for a few years and there were some different kinds that came through the shop
I just look for 99% pure copper like this amzn.to/3tSVDeA as long as it is 99% it really should all be the same.
@@GomeowCreations Thank you. What about the silver shot? I found some on Rio Grande but it almost seems too expensive for its weight
What temperature do you heat your furnace when making the 925. Im using AG108m legor alloy
I have a smith oxy/acet and a electric furnace. I haven't cast either yet and was wondering which is more economical? An electric furnace running at 1800watts for an hours would seem pricey maybe for electricity. Also, what level shade of glasses would be good for the smith torch? Thanks
If I use a fine silver round, how many copper pennies do I need to make sterling? Thank you.
Love to win that skill share. Thank you.
I liked your video and it was very informative. I'm just getting interested in making my own sterling silver pieces in jewelry making. Are there places where you can use people's equipment or have them teach you how to make sterling silver pieces? I am a total beginner and just wondering where to start. Thanks!
Why sterling silver,its such a ugly silver,they ruined the beatiful colour of the silver with copper.Pure silver is beatiful more white than white gold.And the alloy for soldering you can make by yourself 4%zinc and 4% indium for hard alloy and 5% zinc and 7% indium for soft alloy.Sterling silver you get everywhere but jewelery from pure silver is very rare and than very expensive.
Great video as usual but I was wondering how to turn the 90% silver into 92.5% ? I make alot of coin jewelry and would like to turn my scrap 90% into 925. Can you please help me with the math if I wanted to make an ounce of 925 using the 90%...I know you have to use so much 999 but I don't know the math. Thanks
The following formula will give you the minimum amount of fine silver to add to your 90% silver coins so that the alloy can be co side red Stirling Silver:
(Weight of 90% silver coins)x(0.1/0.075 - 1)
OR
(Weight of 90% silver coins)x0.334
for the people in europe, when you buy pure silver investment coins you wont have to pay to tax on it so you can get your sterling really cheap.
thank you . great demo.
i buy my sterling silver from RioGrande. just to let you know that an ounce of fine silver cost 1 dollar more than sterling silver from that supplier !. so why go through the trouble and pay more to make sterling silver ??!!.
You can do what you like but I wanted to have fine silver on hand if I needed it. How I look at it, I'm going to have to melt the metal anyways so I can just mix it on the spot and make what I need at the time. I can make the mix and making it right into a casting or ingot as well.
If i were to combine/melt together 3 parts american silver quarters to 1 part (by weight) pure silver the result would be 92.5% correct?
thank you for sharing this i have question, i have silver coins which is 90% silver and i want to make it sterling silver 92.5% what is the method i should do? thank you
How do you find the O2 and acetylene prices up there vs Cali ?
Both are about $10 cheaper per fillup
You'd make a great asset to a medieval King!
Can you show how to make a 18 k gold a small amount for a ring
thank you
Hey! A scale that does grams and ounces... That's about all the materials I actually have on hand. Glad to see I have something I don't need to order. 😂
That arithmetic is wrong. 31.104g = 1 troy ounce. If you add 2.3g to 31.104g, like you did in this videos, you get 33.404g. That 33.404g alloy of silver and copper contains 6.8% copper and 93.2% silver. Sterling silver is 92.5% silver by weight.
thx fot the Vid ...easy Math when you know how to use it :-)
@GOMEOWCEATIONS WHERE IS THE BEST PLACE TO BUY THE SILVER & AND OTHER METALS? I’m just getting started and find your videos extremely helpful!
bit.ly/925-SterlingSilverCastingGrain
Thank you 🙏
Hi... I am here as I am kinda curious about silver. I got a sterling silver earrings. I was wondering whether it will tarnish or not. So I ended up watching your video. Yay.
Sterling Silver does tarnish. It will get a rainbow look to it over time or turn black
Boil water and put your sliver in the boiling water with Tin foil shiny side up and put in a tea spoon of baking soda and bam all the Tarnish is gone 100%
how much for the silver?
What do you mean?
i begin to find very worthy for buy every piece of rtw jewellery since it take too much hardwork, time and efforts to come up with a finish product
Could this math formula work with pure powdered silver and powdered copper?
99,9/92,5 = 1,08
Silver(g)x1,08 = Sterling silver(g)
Sterling silver(g) - silver(g) = copper (g)
Method I use
Good to know 😊👍
yeah i noticed he did not remove any silver(replaced) so he has 33.4g of alloy that is not exactly stirling
I noticed too, he alloyed it to 93.1%
@@gergeii makes me wonder if this is good or bad about being inaccurate? but it is embarrassing that this is how hes been doing it for time
Yeah, the math doesn’t work.
Can copper from wiring be melted and cleaned like the way you put borax in silver? (I hope I'm not stuck with a lot of copper!) UGH!
Copper can be melted down in the same way you melt down silver. It does take more heat than silver. What are you wanting to do with your copper?
@@GomeowCreations thank you for replying so fast! I wanted to melt some of the thinner wires to run through my rolling mill to make a cuff bracelet but so far I've only made rings. Any suggestions? Do I put borax in the copper also?
Yeah you use borax on everything. What torch do you have to do this?
@@GomeowCreations acetylene and Smiths little torch. Is there a melting tip I can get for it? I wish you would do a video.on melting recycled copper. You make everything easy to understand.
@@tina5670 I have this tip for melting metal amzn.to/3oaFi1f and it will work with your setup. I'm might make a video about that later on.
I have 350g of 50% silver coins. How much .999 silver do i need to add to make 800 silver
Thanks for the video, appreciate the craftsmanship! Would you consider adding the correct math to the description? As is seems to run counter to your intent, 93.1% silver is not sterling, right?
Great video, thank you!!!🏹🏹🏹
Thanks 😁
Ya melting down silver coins that just makes me 😫 coin collectors will hate this one
I thought that was illegal
I NEED TO KNOW WHAT SULUTION YOU USED TO CLEAN THE SLAG ASAP PLASE LOL
What do you mean, at what point?
Don’t you make an alloy of like 930 silver? I do it just to be sure if I solder the piece, the total ratio of the complete product is 925 or higher. Thats why I make 950 silver just to be really sure even if 930 is technically enough.
How to do it if I have junk silver (90% silver ) to 925?
You would need to add pure silver until you hit the 92.5 to 7.5 ratio.
thank you for sharing
No problem
Good info
So for my own personal jewelry I could add extra copper but I’m assuming it would start losing that white brilliant color if I were to do this. I will play around and see how far I can push it especially where I like my jewelry darkened with a patina. But I do want the look of a nice high silver shine on the raised parts so I’ll have a play. And PLEASE if anyone wants to attack me and inform me of what the laws are then spare me because I did say for MY OWN JEWELRY! 😂
Its including 1964 on quarters and dimes that are 90% silver not before and i think the pennies are 1981 and before with some 1982 pennies that are 95% copper and 5%zinc
A very helpful video... leap I say.... melt some silver..... !!!!
The combined weight will be 33.4gr... 31.1gr(amount of .999 silver) / 33.4gr (silver+copper) = 93.11% not 92.5%. Meaning too much silver, or is my math wrong?
You are right and I was a little wrong in this video. That being said this would still count as sterling silver. 😊👍
@@GomeowCreations Actually, even better - I've read online that it's better to err on the "over" percentage, if one is at all worried about their reputation. Thanks for the great video!
I do this, and I'm gonna get my sister into it as well....
Its crazy to me that sterling silver costs more than fine silver!
Even if you can find sterling silver in ingot or grain form, it costs more than fine!
It's more of a convenience cost, so you don't have to worry about figuring out how much copper to add to make your own sterling silver.
That will scratch at all ?
Facinating
Hi, what is 975?
If it's anything like 925 then is just 97.5% silver