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Mixed Metals

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Simon Neath 221/10/2020 20:44:37
3 forum posts

HI

I am building the Clayton Wagon and have come to the crossheads.

I only have one gun metal casting, don't ask I don't know what happened to the other one. Would it be a problem if I made the other one from brass or should they both be the same material and if so why apart from looks?

Thanks in advance

Chris Gunn21/10/2020 22:08:37
338 forum posts
24 photos

Simon, crossheads are made from gun metal so they wear well, brass will not wear anywhere near as well, could you get a lump of bronze or gunmetal and use that?

Chris Gunn

Simon Neath 221/10/2020 22:36:58
3 forum posts

Hi Chris

Thanks for the advice I have a lump of bronze I can use

Simon

Paul Lousick21/10/2020 22:57:09
1576 forum posts
594 photos

Gunmetal is a variety of bronze and formerly used for making ordnance (guns).

Modern admiralty gunmetal is composed of 88 percent copper, 10 percent tin, and 2 percen zinc and is used for gears and bearings that are to be subjected to heavy loads and low speeds. It withstands atmospheric, steam, and seawater corrosion and is suitable for valves, pump parts, and steam fittings.

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