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A959 Type 304H

America ASTM A959Type304H 锻制不锈钢用说明协调标准等级构成的标准指南 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: A959Type304H / A959 Type 304H
Category Grade Standard Region/Area Standard Content
Metals A959 Type 304H ASTM A959 America 锻制不锈钢用说明协调标准等级构成的标准指南

Chemical composition(mass fraction)(wt.%) of the A959 Type 304H

Element Min Max Similar
Si - 1.0000 -
S - 0.0300 -
P - 0.0450 -
Ni 8.0000 11.0000 -
Mn - 2.0000 -
Cr 18.0000 20.0000 -
C 0.0400 0.1000 -

Mechanical Properties of steel grade A959 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)
834 (≥) 756 (≥) 31 22 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 213

Physical Properties of steel grade A959 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
21 - -     0.11 -  
847 144 - 23.3 441   -  
982 - 34 21.2   334 322

Heat Treatment of steel grade A959 Type 304H

Heat treated : 1971°C - 1258°C

Technological Curves of steel grade A959 Type 304H

Cross Reference Table (Equivalent Grade) of A959 Type 304H

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