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A304 94B30 H

America ASTM A30494B30H 有末端淬火淬透性要求的合金钢棒材的技术规范 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: A30494B30H / A304 94B30 H
Category Grade Standard Region/Area Standard Content
Metals A304 94B30 H ASTM A304 America 有末端淬火淬透性要求的合金钢棒材的技术规范

Chemical composition(mass fraction)(wt.%) of the A304 94B30 H

Element Min Max Similar
B 0.0005 - -
Mo 0.0800 0.1500 -
Ni 0.2500 0.6500 -
Cr 0.2500 0.5500 -
P - 0.0350 -
S - 0.0400 -
Mn 0.7000 1.0500 -
Si 0.1500 0.3500 -
C 0.2700 0.3300 -

Mechanical Properties of steel grade A304 94B30 H

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)
146 (≥) 291 (≥) 33 21 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 224

Physical Properties of steel grade A304 94B30 H

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
13 - -     0.32 -  
277 131 - 44.3 221   -  
636 - 12 11.2   212 124

Heat Treatment of steel grade A304 94B30 H

Heat treated : 1423°C - 1653°C

Technological Curves of steel grade A304 94B30 H

Cross Reference Table (Equivalent Grade) of A304 94B30 H

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