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Grade J55

China GB GradeJ55 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: GradeJ55 / Grade J55
Category Grade Standard Region/Area Standard Content
Metals Grade J55 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 J55

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

Mechanical Properties of steel grade Grade J55

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)
947 (≥) 191 (≥) 22 34 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 314

Physical Properties of steel grade Grade J55

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 - -     0.31 -  
424 231 - 21.3 431   -  
977 - 34 33.2   141 341

Heat Treatment of steel grade Grade J55

Heat treated : 1989°C - 1974°C

Technological Curves of steel grade Grade J55

Cross Reference Table (Equivalent Grade) of Grade J55

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