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A240 Type 202

America ASTM A240Type202 压力容器用耐热铬及铬镍不锈钢板、薄板及带材 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: A240Type202 / A240 Type 202
Category Grade Standard Region/Area Standard Content
Metals A240 Type 202 ASTM A240/A240M America 压力容器用耐热铬及铬镍不锈钢板、薄板及带材

Chemical composition(mass fraction)(wt.%) of the A240 Type 202

Element Min Max Similar
Si - 1.0000 -
S - 0.0300 -
P - 0.0600 -
Ni 4.0000 6.0000 -
N - 0.2500 -
Mn 7.5000 10.0000 -
Cr 17.0000 19.0000 -
C - 0.1500 -

Mechanical Properties of steel grade A240 Type 202

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)
741 (≥) 812 (≥) 22 14 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 323

Physical Properties of steel grade A240 Type 202

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
31 - -     0.22 -  
647 481 - 11.3 144   -  
476 - 33 44.2   211 241

Heat Treatment of steel grade A240 Type 202

Heat treated : 1297°C - 1322°C

Technological Curves of steel grade A240 Type 202

Cross Reference Table (Equivalent Grade) of A240 Type 202

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