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Post by christopher on Jun 6, 2018 17:46:30 GMT -6
I notice some gear has a lot of brass, some has no brass. I'm guessing its for isolation or something, but don't really understand why its used. Are there better materials? Or is it the best material for the job? And what exactly is its job?
Thanks!
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Post by svart on Jun 6, 2018 19:29:34 GMT -6
I notice some gear has a lot of brass, some has no brass. I'm guessing its for isolation or something, but don't really understand why its used. Are there better materials? Or is it the best material for the job? And what exactly is its job? Thanks! What do you mean? Like when they use brass standoffs in gear vs. when they use aluminum or something? Brass is fairly conductive in both electricity and heat because it's prime component is copper.. |
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Post by christopher on Jun 6, 2018 19:49:10 GMT -6
First I noticed JH110 drawer chassis looks like it is made mostly of brass, then I noticed my microphone has a brass body (Rode Classic). Then my console has brass plates on the sides. Then I noticed in other pieces of gear. So then I started to really look at non audio stuff, and I'm seeing it used in lots of places but only sparingly. It seems weird to me, is it for heat, or weight, or...? I tried to search google and it says brass is non-magnetic, so maybe this is a clue?
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Post by johneppstein on Jun 7, 2018 2:15:29 GMT -6
First I noticed JH110 drawer chassis looks like it is made mostly of brass, then I noticed my microphone has a brass body (Rode Classic). Then my console has brass plates on the sides. Then I noticed in other pieces of gear. So then I started to really look at non audio stuff, and I'm seeing it used in lots of places but only sparingly. It seems weird to me, is it for heat, or weight, or...? I tried to search google and it says brass is non-magnetic, so maybe this is a clue? Brass is durable, conductive, non- magnetic, relatively resistant to corrosion under normal circumstances, and easy to machine precisely. It's harder than copper and retains its shape better, but softer than steel. Most brasses are fairly wear resistant. It probably has other desirable characteristics that I've missed as well, but that's a good start.
Note that some things that might look like brass are actually other materials, such as hardened anodized aluminum.
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Post by svart on Jun 7, 2018 5:54:50 GMT -6
First I noticed JH110 drawer chassis looks like it is made mostly of brass, then I noticed my microphone has a brass body (Rode Classic). Then my console has brass plates on the sides. Then I noticed in other pieces of gear. So then I started to really look at non audio stuff, and I'm seeing it used in lots of places but only sparingly. It seems weird to me, is it for heat, or weight, or...? I tried to search google and it says brass is non-magnetic, so maybe this is a clue? Brass is durable, conductive, non- magnetic, relatively resistant to corrosion under normal circumstances, and easy to machine precisely. It's harder than copper and retains its shape better, but softer than steel. Most brasses are fairly wear resistant. It probably has other desirable characteristics that I've missed as well, but that's a good start.
Note that some things that might look like brass are actually other materials, such as hardened anodized aluminum.
It's also very easy to plate with other metals, like chrome, nickel, etc. |
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Post by jimwilliams on Jun 7, 2018 9:49:19 GMT -6
Brass can also be hardened. My Henry lever rifle has hardened brass plate construction. (Sorta looks like Lucas McCain's Winchester).
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Post by johneppstein on Jun 7, 2018 11:37:23 GMT -6
Brass can also be hardened. My Henry lever rifle has hardened brass plate construction. (Sorta looks like Lucas McCain's Winchester). Buffalo gun? |
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Post by matt@IAA on Jun 7, 2018 18:07:32 GMT -6
I don’t think you can through-harden brass, at least not the way that phrase is typically used. With few exceptions it’s not hardenable by heat treatment. You can cold work it to harden it, but that is true for any metal. Most generic yellow / cartridge brass can’t be effectively case hardened either.
Brass is a really broad family of alloys, though, and I don’t doubt there are some alloys specifically made for high strength applications.
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Post by christopher on Jun 7, 2018 20:20:31 GMT -6
Thanks for the answers! Interesting stuff. I wonder if it's even brass or alloys that just look that way. Here's a place I visit at my job where I see some of this stuff. It's an old call center hub with racks of.. uh, stuff.  |
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Post by matt@IAA on Jun 8, 2018 12:40:55 GMT -6
Most of that is steel with a zinc chromate coating.
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Post by jimwilliams on Jun 8, 2018 17:15:34 GMT -6
Brass can also be hardened. My Henry lever rifle has hardened brass plate construction. (Sorta looks like Lucas McCain's Winchester). Buffalo gun? No, only a .22LR for plinking. .40-40 ammo like the real deal is about a buck fifty a round here if you can find it. It's probably less in the free states. |
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Post by johneppstein on Jun 8, 2018 19:36:03 GMT -6
No, only a .22LR for plinking. .40-40 ammo like the real deal is about a buck fifty a round here if you can find it. It's probably less in the free states. I thought the Henry buffalo rifle was .50 cal? |
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Post by jimwilliams on Jun 9, 2018 11:09:34 GMT -6
Henry makes all sorts of stuff. Send them an email and they will send you a nice catalog for free. They invented the repeating rifle. Custer lost at Little Big Horn partly because the Sioux had Henry's and Custer didn't.
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