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Steel, Corrosion-Resistant, 16Cr - 4.0Ni - 0.30Cb - 4.0Cu

Solution Heat Treated, Precipitation Hardenable

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  • UNS Number - UNS S17400
  • Specification - AMS 5643
  • Form - Bars, Wire, Forgings, Tubing, and Rings

General Information

This specification covers a corrosion-resistant steel in the form of bars, wire, forgings, mechanical
tubing, flash welded rings, and stock for forging, flash welded rings or heading.

Mechanical Properties

Property Min Value Max Value
N/mmsq 0.2% Yield Strength 1172 0
N/mmsq Ultimate Tensile Strength 1310 0
% Elongation 10 0
% Reduction of Area 40 0
Hardness Rockwell B (HRB) 388 444
Hardness Rockwell C (HRC) 40 47
Hardness Brinell (BHN) 0 0
Hardness Vickers (HV) 0 0

Chemical Elements

% Carbon (C) 0 0.07
% Chromium (Cr) 15.00 17.50
% Manganese (Mn) 0 1.00
% Molybdenum (Mo) 0 0.50
% Nickel (Ni) 3.00 5.00
% Phosphorus (P) 0 0.040
% Sulphur (S) 0 0.030
% Silicon (Si) 0 1.00
% Iron (Fe) 69.41 79
% Copper 3.00 5.00
% Magnesium 0 0
% Zinc 0 0
% Titanium 0 0
% Aluminium 0 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