C673 Manganese Bronze is a manganese silicon bronze alloy. The addition of silicon helps this alloy achieve a high machinability rating of 70. C673 has excellent wear characteristics and the ability to be hot forged. It is often used as an alternative for many of the wrought phosphor bronze alloys in applications demanding a stronger material. This alloy is also corrosion resistant and can be soldered.
Sizes listed by outside diameter
CDA C67300
SAE J463
SAE J461
Alloy D5
QQ-C-390 B
Cu - 58.00% - 63.00%
Pb - 0.40 - 3.00%
Sn - 0.30%
Zn - Rem.
Fe - 0.50%
Ni - 0.25%
Al - 0.25%
Mn - 2.00 -3.50%
Si - 0.50 - 1.50%
70
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