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A268 Type XM-33

America ASTM A268TypeXM-33 一般设备用无缝和焊接铁素体与马氏体不锈钢管 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: A268TypeXM-33 / A268 Type XM-33
Category Grade Standard Region/Area Standard Content
Metals A268 Type XM-33 ASTM A268/A268M America 一般设备用无缝和焊接铁素体与马氏体不锈钢管

Chemical composition(mass fraction)(wt.%) of the A268 Type XM-33

Element Min Max Similar
N - 0.0400 -
Cu - 0.2000 -
Mo 0.7500 1.5000 -
Ni - 0.5000 -
Cr 25.0000 27.0000 -
P - 0.0400 -
S - 0.0200 -
Mn - 0.7500 -
Si - 0.7500 -
C - 0.0600 -
Ti 0.2000 1.0000 -
Si - 0.7500 -
S - 0.0200 -
P - 0.0400 -
Ni - 0.5000 -
N - 0.0400 -
Mo 0.7500 1.5000 -
Mn - 0.7500 -
Cu - 0.2000 -
Cr 25.0000 27.0000 -
C - 0.0600 -

Mechanical Properties of steel grade A268 Type XM-33

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)
171 (≥) 315 (≥) 23 41 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 321

Physical Properties of steel grade A268 Type XM-33

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 - -     0.41 -  
127 238 - 23.3 132   -  
166 - 34 23.2   312 231

Heat Treatment of steel grade A268 Type XM-33

Heat treated : 1591°C - 1731°C

Technological Curves of steel grade A268 Type XM-33

Cross Reference Table (Equivalent Grade) of A268 Type XM-33

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