CuSn4Zn4Pb4 / C54400 / 2.1020 Free-Cutting Phosphor Bronze

Delivery Forms Bronze Alloy CuSn4Zn4Pb4 / UNS C54400

Bronze Alloy CuSn4Zn4Pb4 / UNS C54400

The CuSn4Zn4Pb4 (UNS C54400) bronze alloy is a tin-zinc-lead bronze known for its high strength, wear resistance, and excellent anti-friction properties. Due to its unique characteristics, this material is widely used in mechanical engineering, electrical, automotive, and shipbuilding industries.

Key Material Characteristics

• High mechanical strength – ensures long-lasting durability of components
• Excellent anti-friction properties – minimizes wear and reduces friction
• Good corrosion resistance – performs well in humid and aggressive environments
• Good machinability – easily processed by mechanical machining
• High impact toughness – withstands significant mechanical loads

Applications

• Bearings and bushings – used in high-friction mechanisms
• Gears and worm drives – ensures long service life
• Sliding guides and shafts – applied in industrial machinery
• Automotive industry – components for transmissions and hydraulic systems
• Shipbuilding – parts operating in high-humidity environments

Chemical Composition

The balance of copper, tin, zinc, and lead ensures excellent anti-friction properties and wear resistance.

Mechanical Properties

• Yield strength: ≥ 250 MPa
• Tensile strength: 500-700 MPa
• Elongation: ≥ 10%
• Hardness: 80-120 HB
• Coefficient of friction: Low

Advantages of CuSn4Zn4Pb4 / UNS C54400 Bronze Alloy

✅ High strength and wear resistance – an excellent choice for load-bearing components
✅ Anti-friction properties – reduces friction and wear
✅ Good corrosion resistance – suitable for humid environments
✅ Easy machinability – well-suited for turning and milling
✅ Resistance to impact loads – used in high-dynamic load mechanisms

The CuSn4Zn4Pb4 (UNS C54400) bronze alloy is an ideal material for applications requiring a combination of strength, durability, and excellent anti-friction properties.