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China 鞍钢Q/ASB J55 直缝电阻焊石油套管用J55热轧钢带 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: J55 / J55
Category Grade Standard Region/Area Standard Content
Metals J55 Q/ASB 176 China 直缝电阻焊石油套管用J55热轧钢带

Chemical composition(mass fraction)(wt.%) of the J55

Element Min Max Similar
Nb+V+Ti - 0.1500 -
S - 0.0080 -
P - 0.0200 -
Mn - 1.4000 -
Si 0.1000 0.3000 -
C 0.1500 0.2100 -
P - 0.0200 -
S - 0.0100 -
Mn - 1.4000 -
Si 0.1000 0.3000 -
C 0.1500 0.2100 -

Mechanical Properties of steel 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)
275 (≥) 327 (≥) 12 13 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 124

Physical Properties of steel 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
12 - -     0.23 -  
794 583 - 42.3 432   -  
811 - 34 31.2   231 424

Heat Treatment of steel grade J55

Heat treated : 1252°C - 1923°C

Technological Curves of steel grade J55

Cross Reference Table (Equivalent Grade) of J55

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