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China YB Q245HY-E 海洋石油平台用热轧H型钢(Hot rolling H section steel for offshore oil drilling platform) and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: Q245HY-E / Q245HY-E
Category Grade Standard Region/Area Standard Content
Metals Q245HY-E YB/T 4274 China 海洋石油平台用热轧H型钢(Hot rolling H section steel for offshore oil drilling platform)

Chemical composition(mass fraction)(wt.%) of the Q245HY-E

Element Min Max Similar
Als 0.0100 - -
N - 0.0080 -
Mo - 0.0800 -
Ni - 0.3000 -
Cr - 0.2000 -
Cu - 0.3000 -
Ti - 0.0200 -
V - 0.1000 -
Nb 0.0200 0.0600 -
S - 0.0200 -
P - 0.0250 -
Mn 0.6000 1.2000 -
Si - 0.3500 -
C - 0.1700 -

Mechanical Properties of steel grade Q245HY-E

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)
525 (≥) 276 (≥) 33 31 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 224

Physical Properties of steel grade Q245HY-E

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
43 - -     0.22 -  
223 147 - 14.3 431   -  
322 - 32 44.2   334 334

Heat Treatment of steel grade Q245HY-E

Heat treated : 1373°C - 1172°C

Technological Curves of steel grade Q245HY-E

Cross Reference Table (Equivalent Grade) of Q245HY-E

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