CuAl10Ni5Fe4 Bronze (Aluminium Bronze) C95500

CuAl10Ni5Fe4 bronze is a high-strength aluminium bronze alloy widely used in heavy-duty, wear- and corrosion-resistant applications.

Bronze materials by Optima Metals

📌 Chemical Composition (typical)

• Cu (Copper): base

• Al (Aluminium): ~9.5 – 11.5%

• Ni (Nickel): ~4.0 – 6.0%

• Fe (Iron): ~3.0 – 5.0%

• Trace elements (Mn, Si)

📏 Norms / Standards

This alloy can appear under different naming systems:

🇪🇺 European Standards

• EN 12163 / EN 12165 → wrought products (bars, billets)

• EN 1982 → cast alloys (equivalent family)

• Common designation:

  • CuAl10Ni5Fe4

  • Sometimes written as CW307G (semi-finished products depending on form)

🇩🇪 DIN / Germany

• Often referenced as:

  • CuAl10Ni5Fe4

  • or material group similar to 2.0966 (depending on product form)

🇺🇸 ASTM equivalents (approx.)

No exact 1:1 match, but closest family:

• C95500 / C95800 aluminium bronze alloys

⚙️ Key Properties of CuAl10Ni5Fe4 bronze

• Very high wear resistance

• Excellent corrosion resistance (especially seawater)

• High mechanical strength

• Good performance at elevated temperatures

• Non-sparking (safe in explosive environments)

Typical values (approx.):

• Tensile strength: 600 – 800 MPa

• Hardness: 150 – 220 HB

• Density: ~7.6–7.8 g/cm³

🏭 Where it is used

🌊 Marine Industry

• Propellers

• Pump parts

• Sea-water valves

• Ship fittings

🏗 Heavy Industry

• Gears and worm gears

• Bearings (heavy load, low speed)

• Bushings

• Sliding wear parts

🔥 Die Casting / Foundry

• Plunger tips (in some systems)

• Wear rings

• High-temperature guide components

⚙️ Oil & Gas / Mining

• Corrosion-resistant mechanical parts

• Valve seats

• Pump components

🔧 Why it is chosen

CuAl10Ni5Fe4 is selected when you need:

• High load + wear resistance

• Corrosion resistance (especially saltwater)

• Long service life without lubrication failure