Bronze Alloy CuAl3Si / UNS C63600
The CuAl3Si / UNS C63600 bronze alloy is a high-quality silicon-aluminum bronze that combines high strength, excellent wear resistance, and corrosion resistance, especially in aggressive environments.
Chemical Composition (%):
- Aluminum (Al): 2.0–4.0
- Silicon (Si): 1.5–3.5
- Copper (Cu): remainder
- Manganese (Mn): ≤ 1.5
- Iron (Fe): ≤ 0.5
- Nickel (Ni): ≤ 0.3
- Zinc (Zn): ≤ 0.5
Mechanical Properties:
- Tensile Strength (MPa): 550–750
- Yield Strength (MPa): 250–400
- Elongation (%): 10–20
- Hardness (HBW): 160–200
- Impact Toughness (J): ≥ 12
Physical Properties:
- Density (g/cm³): 7.4–7.6
- Melting Temperature (°C): 1020–1040
- Thermal Conductivity (W/(m·K)): 42
- Electrical Conductivity (% IACS): 12
Key Applications:
CuAl3Si bronze is widely used in:
- Mechanical Engineering: Friction-exposed components, wear-resistant bearings, and gears.
- Aerospace Industry: High-load components.
- Electrical Engineering: Contacts and conductive elements.
- Marine Technology: Corrosion-resistant components.
Advantages of CuAl3Si / C63600 Alloy:
✅ High mechanical strength and hardness. ✅ Excellent wear resistance. ✅ Good corrosion resistance in seawater and aggressive environments. ✅ Stability of characteristics at high temperatures.
This alloy is an excellent choice for applications requiring high wear resistance, durability, and mechanical strength.
Delivery Forms of CuAl3Si / UNS C63600 Bronze Alloy
| Bronze CuAl3Si alloy / UNS C63600 | tape, strip, rod, pipe, wire |

