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| Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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Looking to ID brass or bronze alloy
For a reed plate for accordion - I have a piece of Russian made
"latun'" - L87 type. When trying to match it to American brass I tried different types from McMaster, including "engravers brass" - which is the hardest they offer. Still Russian material is harder ... so I was wondering may be what I have is a bronze alloy (it is somewhat darker in hue compared to brass). It is important to have right hardness as I punch out reed slots on a fly wheel press How does say 220 bronze alloy compare to brass in terms of hardness ? I need to have a copper alloy with hardness of say 7075 Al (150 brinell or thereabout), something w/o any health related issues. TY Rashid |
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