High-Leaded Tin Bronze Alloy C93900
C93900 is a premium high-leaded tin bronze alloy engineered for exceptional wear performance and anti-seizing properties under demanding conditions. Composed of approximately 83% copper, 10% lead, 4% tin, and small percentages of nickel and antimony, this alloy delivers outstanding load-carrying capacity and superior embeddability—making it a preferred choice for heavy-duty bearing applications.
Key Characteristics:
- Exceptional Load-Bearing Capacity
- Superior Wear Resistance
- Excellent Anti-Seizing Properties
- Outstanding Embeddability
- Good Corrosion Resistance
- Machinable and Castable
Also referred to as CDA 939, C939 Bearing Bronze, or C93900 Leaded Bronze, this alloy is part of the high-leaded tin bronze family designed specifically for use in high-speed, high-load, and lubricated applications. C93900 offers a unique balance of strength and ductility, while its high lead content provides natural lubricity and thermal conductivity.
C93900 is particularly well-suited for:
- Heavy-duty bushings and bearings
- Industrial wear plates
- High-load sleeve bearings
- Hydraulic components
- Automotive and truck suspension parts
- Construction and agricultural equipment
Because of its proven reliability in severe service environments—especially where lubrication may be marginal—C93900 is frequently used in industries such as automotive, construction, heavy equipment, and marine.
Whether you need consistent performance under high-pressure conditions or a long-lasting material for high-friction assemblies, C93900 remains a trusted alloy solution in demanding manufacturing and engineering applications.