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Q245HY-B

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China YB Q245HY-B 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-B / Q245HY-B
Category Grade Standard Region/Area Standard Content
Metals Q245HY-B 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-B

Element Min Max Similar
N - 0.0080 -
Mo - 0.0800 -
Ni - 0.3000 -
Cr - 0.2000 -
Cu - 0.3000 -
S - 0.0350 -
P - 0.0350 -
Mn 0.6000 1.2000 -
Si - 0.3500 -
C - 0.2000 -

Mechanical Properties of steel grade Q245HY-B

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)
271 (≥) 541 (≥) 33 23 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 414

Physical Properties of steel grade Q245HY-B

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
13 - -     0.12 -  
271 642 - 21.3 123   -  
257 - 21 44.2   142 441

Heat Treatment of steel grade Q245HY-B

Heat treated : 1394°C - 1372°C

Technological Curves of steel grade Q245HY-B

Cross Reference Table (Equivalent Grade) of Q245HY-B

Grade Standard Country Application
ASTM 5140
AISI 201
AISI 202
1.2767
17-4PH
AISI 1052
AISI 416Se
AISI 1330
AISI 205 Stainless Steel
AISI A10
AISI A2
AISI A3
AISI A4
1.0036
1.0037
SAE J403
UNS G10100
AMS 4924
ASTM A36
Electrode 100S-1
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Jiangyou Longhai Special Steel Co.,Ltd.
Jiangyou Longhai Special Steel Co.,Ltd.

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