Leaded Tin Bronze Alloy C91700

C91700, also known as Nickel Gear Bronze, is a high-performance leaded tin bronze alloy composed of approximately 84–87% copper, 11.3–12.5% tin, and 0.25% lead, with trace amounts of zinc, iron, phosphorus, and nickel. This composition provides a unique combination of strength, wear resistance, and anti-friction properties, making it ideal for demanding industrial applications.

Key Characteristics:

• Exceptional Load-Bearing Capability
• High Compressive Strength
• Excellent Wear Resistance
• Good Corrosion Resistance
• Reliable Machinability
• Superior Performance Under Heavy Loads and Slow Speeds

Also referred to as CDA 917, C917 High-Leaded Tin Bronze, or SAE 64, this alloy is commonly specified in high-load, low-speed environments where reliable performance is essential. Its mechanical strength and ability to conform under pressure make it a trusted choice for components exposed to constant motion and stress.

C91700 is particularly well-suited for:

• Mill slippers
• Couplings
• Heavy-duty bushings
• Thrust washers
• Bearings in steel mills and rolling equipment
• Industrial machinery under high pressure and load

With its proven performance in harsh environments—particularly in applications involving high impact, friction, and moderate corrosion—C91700 remains a go-to material for the steel, mining, and manufacturing industries.