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Cobalt Alloy, Corrosion and Heat Resistant

40Co - 22Cr - 22Ni - 14.5W - 0.07La

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  • UNS Number - R30188
  • Specification - AMS 5608
  • Form - Sheet, Strip, and Plate

General Information

This specification covers a corrosion and heat resistant cobalt alloy in the form of sheet, strip, and
plate.

Mechanical Properties

Property Min Value Max Value
N/mmsq 0.2% Yield Strength 379 0
N/mmsq Ultimate Tensile Strength 862 0
% Elongation 40 0
% Reduction of Area 0 0
Hardness Rockwell B (HRB) 0 0
Hardness Rockwell C (HRC) 0 0
Hardness Brinell (BHN) 0 0
Hardness Vickers (HV) 0 0

Chemical Elements

% Carbon (C) 0.05 0.15
% Chromium (Cr) 20.00 24.00
% Manganese (Mn) 0 1.25
% Molybdenum (Mo) 0 0
% Nickel (Ni) 20.00 24.00
% Phosphorus (P) 0 0.020
% Sulphur (S) 0 0.015
% Silicon (Si) 0.20 0.50
% Iron (Fe) 0 3.00
% Copper 0 0
% Magnesium 0 0
% Zinc 0 0
% Titanium 0 0
% Aluminium 0 0
% Cobalt (Co) 30.93 46.73
% Zirconium (Zr) 0 0
% Boron (B) 0 0.015
% Lead (Pb) 0 0
% Bismuth (Bi) 0 0
% Selenium (Se) 0 0