CuSn4Zn4Pb4 - UNS.C54400 Free Cutting Phosphor Bronze Rods

C54400 Details & Applications

C54400 Phosphor Bronze Alloys

CuSn4Zn4Pb4 - UNS.C54400 Phosphor Bronze Alloys, is the finest bearing alloy that the industry has to offer, it is a lead-containing multi-alloy bronze exhibiting a very good machinability, it is furthermore distinguished by its excellent spring properties. C54400 is used for electrical contacts which have to be manufactured as turned part. C54400 can be work-hardened up to 800 N/mm2 and therefore if of considerably higher strength than lead-containing brass alloy. When annealed, this metal can be bent, formed, blanked, and stamped.

Chemical Composition for C54400 Phosphor Bronze Alloys

Sn: 3.50-4.50%

Pb: 3.50-4.50%

Zn: 3.50-4.50%

P:  0.01-0.50%

Fe: 0.10% Max.

Zn: Balance

Note: Copper plus additions equal 99.50% minimum.