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International ISO A-3 热处理钢、合金钢和易切削钢-第13部分:锻造不锈钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: A-3 / A-3
Category Grade Standard Region/Area Standard Content
Metals A-3 ISO 683-13 International 热处理钢、合金钢和易切削钢-第13部分:锻造不锈钢

Chemical composition(mass fraction)(wt.%) of the A-3

Element Min Max Similar
Si - 1.0000 -
S - 0.0300 -
P - 0.0600 -
Ni 4.0000 6.0000 -
N 0.0500 0.2500 -
Mn 7.5000 10.5000 -
Cr 17.0000 19.0000 -
C - 0.1500 -

Mechanical Properties of steel grade A-3

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)
344 (≥) 347 (≥) 11 42 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 231

Physical Properties of steel grade A-3

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
14 - -     0.21 -  
264 497 - 32.3 344   -  
481 - 21 34.2   224 434

Heat Treatment of steel grade A-3

Heat treated : 1146°C - 1578°C

Technological Curves of steel grade A-3

Cross Reference Table (Equivalent Grade) of A-3

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