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A 420 AP-M

France AFNOR NF A420AP-M Foundry products. Weldable cast steels for pressure vessels and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: A420AP-M / A 420 AP-M
Category Grade Standard Region/Area Standard Content
Metals A 420 AP-M NF A32-055 France Foundry products. Weldable cast steels for pressure vessels

Chemical composition(mass fraction)(wt.%) of the A 420 AP-M

Element Min Max Similar

Mechanical Properties of steel grade A 420 AP-M

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)
778 (≥) 351 (≥) 13 21 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 112

Physical Properties of steel grade A 420 AP-M

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
12 - -     0.11 -  
311 946 - 14.3 243   -  
731 - 22 23.2   432 221

Heat Treatment of steel grade A 420 AP-M

Heat treated : 1277°C - 1566°C

Technological Curves of steel grade A 420 AP-M

Cross Reference Table (Equivalent Grade) of A 420 AP-M

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