Self-Lubricating Bronze
OVERVIEW
CDA 938 SAE 67 Bronze alloy is the true self-lubricating bronze due to its high lead content 15% Pb which does not require any external lubrication. High lead bronze alloy can absorb dirt and grit without the risk of damaging the shaft. It has very low coefficient of friction between shaft and bushing thus perfect for high-speed applications that subject bushing to high local heat. Highly recommended for hard-to-lubricate bronze bushing
TYPICAL USES
Light-duty bronze bushing, High speed bushing with minor load, Turbocharger bushing
APPLICATION
Light Load | | Medium Pressure | | High Speed |
EQUIVALENT SPECS
American | ASTM | B505 |
---|---|---|
UNS | C93800 | |
CDA | 938 | |
SAE | 67 | |
British | BS | 1400 LB1 |
German | DIN | 1716 CuPb15Sn |
Japanese | JIS | CAC603 LBC4 |
CHEMICAL COMPOSITION
Copper | % Cu | 78 |
---|---|---|
Tin | % Sn | 7 |
Lead | % Pb | 15 |
MECHANICAL PROPERTIES
Tensile Strength | 25,000 psi |
---|---|
Yield Strength | 16,000 psi |
Elongation | 5% |
Min Hardness Brinell 500 Kg | 60 BHN |
Max Operating Temp | 170 ºC |
Max Operating Pressure | 2175 - 3625 psi |