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EU EN P285QH 承压钢锻件 - 第4部分:可焊细晶粒高屈服强度钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: P285QH / P 285 QH
Category Grade Standard Region/Area Standard Content
Metals P 285 QH EN 10222-4 EU 承压钢锻件 - 第4部分:可焊细晶粒高屈服强度钢

Chemical composition(mass fraction)(wt.%) of the P 285 QH

Element Min Max Similar
V+Nb - 0.0500 -
V - 0.0500 -
Si - 0.4000 -
S - 0.0150 -
P - 0.0250 -
Ni - 0.3000 -
Nb - 0.0300 -
N - 0.0200 -
Mo - 0.0800 -
Mn 0.6000 1.4000 -
Cu - 0.2000 -
Cr - 0.3000 -
CEV - 0.4100 -
C - 0.1800 -
Al 0.0200 0.0600 -

Mechanical Properties of steel grade P 285 QH

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)
694 (≥) 482 (≥) 24 24 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 234

Physical Properties of steel grade P 285 QH

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 - -     0.43 -  
874 719 - 31.3 413   -  
163 - 22 23.2   123 312

Heat Treatment of steel grade P 285 QH

Heat treated : 1259°C - 1768°C

Technological Curves of steel grade P 285 QH

Cross Reference Table (Equivalent Grade) of P 285 QH

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