C95400 Bronze, also known as C954 Aluminum Bronze or Nickel Aluminum Bronze, is a highly popular all-purpose alloy consisting of 10.8% aluminum, 83.2% copper, 4.0% iron, .50% magnesium, and 1.50% nickel. Blending these metals gives the alloy its features, including its high yield and tensile strength, weldability, good ductility, and exceptional resistance to wear, fatigue, and deformation under shock loading. It is the highest strength standard copper-based alloy and can be heat treated to increase the tensile strength.
Due to C954 bronze’s features, it is primarily used in applications within the general sea water-related services, water supply industry, structural building applications, and the oil and petrochemical industries. Specifically, you’ll find nickel aluminum bronze used for valve components, bearings, gears, wear plates and wear strips, landing gear components for aircrafts, engine components, bearing brushes, ship propellers, and underwater fasteners in naval architecture.
| Property | Value | Notes |
|---|---|---|
| Material Type | Aluminum Bronze | UNS C95400; ASTM B148; nominally Cu-11%Al |
| Composition | Cu ~85%, Al ~10–11%, Fe ~3–4% | Iron increases strength and wear resistance |
| Density | ~7.7 g/cm³ | ~0.278 lb/in³ — lighter than other bronzes |
| Melting Point | ~1,020–1,080°C | ~1,870–1,975°F |
| Hardness (Brinell) | ~170–190 HB | As-cast or heat-treated |
| Tensile Strength | ~620 MPa | ~90,000 psi — very high for a bronze alloy |
| Yield Strength | ~415 MPa | ~60,000 psi |
| Elongation at Break | ~12–20% | Moderate ductility |
| Modulus of Elasticity | ~110–130 GPa | ~16–19 x 10⁶ psi |
| Corrosion Resistance | Excellent (especially in seawater) | Forms a protective aluminum oxide film |
| Wear Resistance | Excellent | Great for high-load, low-speed applications |
| Machinability | Fair to Good | Requires sharp tooling; harder than leaded bronzes |
| Weldability | Difficult | Preheat and post-weld treatment recommended |
| Thermal Conductivity | ~40–60 W/m·K | Lower than pure copper or leaded bronze |
| Magnetism | Non-magnetic | Useful in sensitive equipment |
| Applications | Gears, bushings, marine components, valve parts | Chosen for strength + corrosion resistance |
With decades of experience and strong mill relationships, we’re more than just a distributor—we’re your trusted partner. Let us help you find what others can’t.
