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America SAE 20202 General Characteristics and Heat Treatments of Steels and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 20202 / 20202
Category Grade Standard Region/Area Standard Content
Metals 20202 SAE J 412 America General Characteristics and Heat Treatments of Steels

Chemical composition(mass fraction)(wt.%) of the 20202

Element Min Max Similar
Si - 1.0000 -
S - 0.0300 -
P - 0.0600 -
Ni 4.0000 6.0000 -
N - 0.2500 -
Mn 7.5000 10.0000 -
Cr 17.0000 19.0000 -
C - 0.1500 -
Si - 1.0000 -
S - 0.0300 -
P - 0.0600 -
Ni 4.0000 6.0000 -
N - 0.2500 -
Mn 7.5000 10.0000 -
Cr 17.0000 19.0000 -
C - 0.1500 -

Mechanical Properties of steel grade 20202

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV/Ku (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
579 (≥) 954 (≥) 33 41 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 212

Physical Properties of steel grade 20202

Temperature
(°C)
Modulus of elasticity
(GPa)
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)
Specific thermal capacity
(J/kg·°C)
Specific electrical resistivity
(Ω mm²/m)
Density
(kg/dm³)
Poisson’s coefficient, ν
13 - -     0.11 -  
514 447 - 42.3 432   -  
967 - 32 33.2   333 344

Heat Treatment of steel grade 20202

Heat treated : 1184°C - 1126°C

Technological Curves of steel grade 20202

Cross Reference Table (Equivalent Grade) of 20202

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