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A240 Type 304H

America ASTM A240Type304H 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: A240Type304H / A240 Type 304H
Category Grade Standard Region/Area Standard Content
Metals A240 Type 304H 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 304H

Element Min Max Similar

Mechanical Properties of steel grade A240 Type 304H

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)
975 (≥) 577 (≥) 43 34 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 234

Physical Properties of steel grade A240 Type 304H

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 - -     0.43 -  
754 625 - 12.3 223   -  
229 - 44 32.2   443 333

Heat Treatment of steel grade A240 Type 304H

Heat treated : 1543°C - 1925°C

Technological Curves of steel grade A240 Type 304H

Cross Reference Table (Equivalent Grade) of A240 Type 304H

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