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EU EN P280GH 承压钢锻件 - 第2部分:规定高温性能的铁素体和马氏体钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: P280GH / P 280 GH
Category Grade Standard Region/Area Standard Content
Metals P 280 GH EN 10222-2 EU 承压钢锻件 - 第2部分:规定高温性能的铁素体和马氏体钢

Chemical composition(mass fraction)(wt.%) of the P 280 GH

Element Min Max Similar
V - 0.0200 -
Si - 0.4000 -
S - 0.0150 -
P - 0.0250 -
Ni - 0.3000 -
Nb - 0.0100 -
Mo - 0.0800 -
Mn 0.9000 1.5000 -
Cu - 0.3000 -
Cr+Cu+Mo - 0.5000 -
Cr - 0.3000 -
C 0.0800 0.2000 -

Mechanical Properties of steel grade P 280 GH

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)
952 (≥) 868 (≥) 13 13 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 144

Physical Properties of steel grade P 280 GH

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
24 - -     0.32 -  
314 811 - 43.3 124   -  
848 - 32 13.2   331 313

Heat Treatment of steel grade P 280 GH

Heat treated : 1314°C - 1392°C

Technological Curves of steel grade P 280 GH

Cross Reference Table (Equivalent Grade) of P 280 GH

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