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A672 Grade A 55

America ASTM A672GradeA55 中温高压用电熔焊钢管 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: A672GradeA55 / A672 Grade A 55
Category Grade Standard Region/Area Standard Content
Metals A672 Grade A 55 ASTM A672 America 中温高压用电熔焊钢管

Chemical composition(mass fraction)(wt.%) of the A672 Grade A 55

Element Min Max Similar
C - 0.2800 -
Mn - 0.9000 -
P - 0.0250 -
S - 0.0250 -
S - 0.0350 -
P - 0.0350 -
Mn - 0.9800 -
C - 0.2800 -

Mechanical Properties of steel grade A672 Grade A 55

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)
753 (≥) 762 (≥) 41 42 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 232

Physical Properties of steel grade A672 Grade A 55

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
22 - -     0.13 -  
758 617 - 22.3 433   -  
742 - 44 32.2   222 211

Heat Treatment of steel grade A672 Grade A 55

Heat treated : 1337°C - 1814°C

Technological Curves of steel grade A672 Grade A 55

Cross Reference Table (Equivalent Grade) of A672 Grade A 55

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