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Steel, Corrosion and Heat Resistant

13Cr (0.30 - 0.40C) (SAE 51420F, 51420FSe), Free-Machining Grade

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  • UNS Number - UNS S42020 / S42023
  • Specification - AMS 5620
  • Form - Bars, Wire, and Forgings

General Information

This specification covers two types of corrosion and heat resistant steel in the form of bars, wire,
forgings, and forging stock.

Mechanical Properties

Property Min Value Max Value
N/mmsq 0.2% Yield Strength 0 0
N/mmsq Ultimate Tensile Strength 0 862
% Elongation 0 0
% Reduction of Area 0 0
Hardness Rockwell B (HRB) 0 241
Hardness Rockwell C (HRC) 0 0
Hardness Brinell (BHN) 0 0
Hardness Vickers (HV) 0 0

Chemical Elements

% Carbon (C) 0.30 0.40
% Chromium (Cr) 12.00 14.00
% Manganese (Mn) 0 1.25
% Molybdenum (Mo) 0 0.60
% Nickel (Ni) 0 0.50
% Phosphorus (P) 0 0.060
% Sulphur (S) 0 0.030
% Silicon (Si) 0 1.00
% Iron (Fe) 81.81 87.52
% Copper 0 0
% 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