C93200 (SAE660 RG7) is considered a "standard" type bearing material of lead-tin bronze. The alloy has excellent processability, good hardness, strength and wear resistance, and excellent wear resistance. Typical applications include bearings, washers, bushings, automotive accessories, spindle bearings, machine tool bearings, crane bearings, trunnons, roller neck bearings, rolling mill bearings, fuel pump bushings, water pump bushings, diesel piston pin bushings, forged toggle rod bearings, filling box hydraulic press, hydraulic press main lining, pump impingers, general purpose bushings, pipe fittings, pump units, outer spherical bearings, etc.
Chemical composition：
Cu | Sn | Pb | Zn | Fe | Ni | Sb | P | S | Al | Mn | Si | |
81.00-85.00 | 6.30-7.50 | 6.00-8.00 | 2.00-4.00 | 0.2 | 1.00? | 0.35 | 1.5 | 0.08 | 0.005 | N/A | 0.005 |
Mechanical property：
Tensile Strength (min) | Yield Strength (at .5% extention under load min) | Elongation (in 2in. or 50mm min, %) | Brinell Hardness (min) | Remarks | ||
Ksi | MPa | Ksi | MPa | |||
35 | 241 | 20 | 138 | 10 | 65 | |
