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Aluminum Bronze, 81.5Cu - 10.0Al - 4.8Ni - 3.0Fe

Drawn and Stress Relieved (HR50) or Temper Annealed (TQ50)

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  • UNS Number - UNS C63000
  • Specification - AMS 4640
  • Form - Bars, Rods, Shapes, Tubes, and Forgings

General Information

This specification covers an aluminum bronze alloy in the form of bars, rods, shapes, tubes,
forgings, and forging stock.

Mechanical Properties

Property Min Value Max Value
N/mmsq 0.2% Yield Strength 468.86 0
N/mmsq Ultimate Tensile Strength 758.45 0
% Elongation 10 0
% Reduction of Area 0 0
Hardness Rockwell B (HRB) 201 248
Hardness Rockwell C (HRC) 0 0
Hardness Brinell (BHN) 0 0
Hardness Vickers (HV) 0 0

Chemical Elements

% Carbon (C) 0 0
% Chromium (Cr) 0 0
% Manganese (Mn) 0 1.5
% Molybdenum (Mo) 0 0
% Nickel (Ni) 4.0 5.5
% Phosphorus (P) 0 0
% Sulphur (S) 0 0
% Silicon (Si) 0 0.25
% Iron (Fe) 2.0 4.0
% Copper 77.25 99.5
% Magnesium 0 0
% Zinc 0 0.3
% Titanium 0 0
% Aluminium 9.0 11.0
% Cobalt (Co) 0 0
% Zirconium (Zr) 0 0
% Boron (B) 0 0
% Lead (Pb) 0 0
% Bismuth (Bi) 0 0
% Selenium (Se) 0 0