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Grade H40

China GB GradeH40 石油天然气工业 油气井套管或油管用钢管 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: GradeH40 / Grade H40
Category Grade Standard Region/Area Standard Content
Metals Grade H40 GB/T 19830 China 石油天然气工业 油气井套管或油管用钢管

Chemical composition(mass fraction)(wt.%) of the Grade H40

Element Min Max Similar
S - 0.0300 -
P - 0.0300 -

Mechanical Properties of steel grade Grade H40

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)
597 (≥) 264 (≥) 31 24 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 131

Physical Properties of steel grade Grade H40

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
41 - -     0.22 -  
699 646 - 44.3 241   -  
635 - 31 31.2   423 424

Heat Treatment of steel grade Grade H40

Heat treated : 1296°C - 1813°C

Technological Curves of steel grade Grade H40

Cross Reference Table (Equivalent Grade) of Grade H40

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