Excellent book on brass - Casting Brass by author CW Ammen, published over 50 years ago. He also wrote books on bronze and other alloys. This guy was in the industry for most of the first half of the 20th century. Even gives hints on the business side of running a foundry and types of customers he encountered - was very wary of inventors. Bought my copy in the late 1980s. still have it. Always referring to it when casting brass, and german silver. He wrote other books re metal casting. A very knowleable guy. Passed away decades ago.
For those who are unaware, there are two types of brass alloys used to simulate gold or silver. Pinchbeck is a type of brass alloy which simulates gold. The composition of Pinchbeck is 83% copper + 17% zinc. Nickel silver is a type of brass alloy which simulates silver. The composition of nickel silver is 60% copper + 20% zinc + 20% nickel. Nickel silver contains no silver at all.
Oh but we did have a brass age, but only much later. In the beginning of the 1900's there were trumpets everywhere. Saxomophones, obomobos and also tubamabas. They didn't last that long though, and were replaced by synthesizers.
Operated a brass foundry LPG fired crucible furnace some years back, we poured brass at 1080 cels. and German Silver (nickel brass) at 1060- Cels. Lovely job in winter from the heat output from the furnace. Not so good in Summer
Well it’s like this kiddos. When different metals love each other very very much they join together in matrimony and create a whole kind of metal called an Alloy. And that’s how brass and bronze are made
My understanding is that brass and bronze are fortunate by products, the ancents were trying to make gold! But figgured out this metal alloy was quite useful.
When aircraft grade aluminum is melted down, does the aluminum go back to soft aluminum and the alloys that it had get cooked out? This is a fascinating video.
How is brass easily recycled? Zinc's boiling point is lower than coppers' melting point.. so before the copper begins to melt the zinc is already a gas which is also dangerous for humans
Are you sure your information is correct? Sure there is a melting temperature differential. But have to be careful not to overheat the brass. Very obvious if too hot, light grey cloud in the factory from the vaporized zinc. We poured brass at 1080c. and german silver (brass with 25% nickel added) at 1160c. To be certain, we wore breathing mask rated to filter out organic vapors, the finest filter material available to us, to filter out vaporised zinc, just in case of an overheat.
Excellent book on brass - Casting Brass by author CW Ammen, published over 50 years ago. He also wrote books on bronze and other alloys. This guy was in the industry for most of the first half of the 20th century. Even gives hints on the business side of running a foundry and types of customers he encountered - was very wary of inventors. Bought my copy in the late 1980s. still have it. Always referring to it when casting brass, and german silver. He wrote other books re metal casting. A very knowleable guy. Passed away decades ago.
For those who are unaware, there are two types of brass alloys used to simulate gold or silver. Pinchbeck is a type of brass alloy which simulates gold. The composition of Pinchbeck is 83% copper + 17% zinc. Nickel silver is a type of brass alloy which simulates silver. The composition of nickel silver is 60% copper + 20% zinc + 20% nickel. Nickel silver contains no silver at all.
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It will be useful if you can indicate the typical mix ratios of different elements in the alloys. Eg. 60:40 ( Cu:Zn) for Brass.
I always wanted to know the difference. Thanks. That is why we had a Bronze age, but not a Brass age.
Oh but we did have a brass age, but only much later. In the beginning of the 1900's there were trumpets everywhere. Saxomophones, obomobos and also tubamabas. They didn't last that long though, and were replaced by synthesizers.
Operated a brass foundry LPG fired crucible furnace some years back, we poured brass at 1080 cels. and German Silver (nickel brass) at 1060- Cels. Lovely job in winter from the heat output from the furnace. Not so good in Summer
Well it’s like this kiddos.
When different metals love each other very very much they join together in matrimony and create a whole kind of metal called an Alloy. And that’s how brass and bronze are made
Alloying copper with other metals also greatly reduces work hardening, which makes pure copper brittle after flexion.
excellent
Maybe the journey of lithium would be interesting?
I appreciated the "fitting" visual pun
My understanding is that brass and bronze are fortunate by products, the ancents were trying to make gold! But figgured out this metal alloy was quite useful.
Bronze is amazing, but nobody make me a skillet from it
When aircraft grade aluminum is melted down, does the aluminum go back to soft aluminum and the alloys that it had get cooked out? This is a fascinating video.
The amazing part is how humans figured this out 5000 years ago...
What if you smelt brass and bronze in equal amounts?
What do you call a mixrture of copper and lead ????
Leaded copper. Fun fact if you add too much lead, the finishing piece will 'sweat' lead. 😂
A mess
QA doesn't "ensure" quality: it confirms quality.
How is brass easily recycled? Zinc's boiling point is lower than coppers' melting point.. so before the copper begins to melt the zinc is already a gas which is also dangerous for humans
Are you sure your information is correct? Sure there is a melting temperature differential. But have to be careful not to overheat the brass. Very obvious if too hot, light grey cloud in the factory from the vaporized zinc. We poured brass at 1080c. and german silver (brass with 25% nickel added) at 1160c. To be certain, we wore breathing mask rated to filter out organic vapors, the finest filter material available to us, to filter out vaporised zinc, just in case of an overheat.
So.... can you have brassy bronze? Cu, Zn, Sn, phospher, optional trace.
true cast brass - yellow brass, 2/3rd copper, 1/3rd Zinc, with some brasses including 1 - 2% lead to increase polishing and shine properties.