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A688 S30400

America ASTM A688S30400 焊接的奥氏体不锈钢给水加热器管 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: A688S30400 / A688 S30400
Category Grade Standard Region/Area Standard Content
Metals A688 S30400 ASTM A688/A688M America 焊接的奥氏体不锈钢给水加热器管

Chemical composition(mass fraction)(wt.%) of the A688 S30400

Element Min Max Similar
Si - 0.7500 -
S - 0.0300 -
P - 0.0400 -
Ni 8.0000 11.0000 -
Mn - 2.0000 -
Cr 18.0000 20.0000 -
C - 0.0800 -

Mechanical Properties of steel grade A688 S30400

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)
387 (≥) 698 (≥) 23 24 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 444

Physical Properties of steel grade A688 S30400

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
11 - -     0.12 -  
918 424 - 31.3 314   -  
755 - 21 12.2   312 142

Heat Treatment of steel grade A688 S30400

Heat treated : 1426°C - 1335°C

Technological Curves of steel grade A688 S30400

Cross Reference Table (Equivalent Grade) of A688 S30400

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