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Steel, Corrosion-Resistant

16Cr - 2.5Ni (SAE 51431)

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  • UNS Number - UNS S43100
  • Specification - AMS 5628
  • Form - Bars, Wire, Forgings, and Tubing

General Information

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

Mechanical Properties

Property Min Value Max Value
N/mmsq 0.2% Yield Strength 1034 0
N/mmsq Ultimate Tensile Strength 1379 0
% Elongation 10 0
% Reduction of Area 40 0
Hardness Rockwell B (HRB) 0 302
Hardness Rockwell C (HRC) 0 0
Hardness Brinell (BHN) 0 0
Hardness Vickers (HV) 0 0

Chemical Elements

% Carbon (C) 0 100
% Chromium (Cr) 0.12 0.17
% Manganese (Mn) 0.30 0.80
% Molybdenum (Mo) 0 0.25
% Nickel (Ni) 2.00 3.00
% Phosphorus (P) 0 0.040
% Sulphur (S) 0 0.030
% Silicon (Si) 0.20 0.60
% Iron (Fe) 78.01 81.88
% Copper 0 0.50
% 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