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Japan JIS SNB7 高温合金螺旋钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SNB7 / SNB 7
Category Grade Standard Region/Area Standard Content
Metals SNB 7 JIS G4107 Japan 高温合金螺旋钢

Chemical composition(mass fraction)(wt.%) of the SNB 7

Element Min Max Similar

Mechanical Properties of steel grade SNB 7

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)
836 (≥) 387 (≥) 32 31 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 331

Physical Properties of steel grade SNB 7

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
23 - -     0.43 -  
621 594 - 31.3 321   -  
779 - 41 23.2   121 413

Heat Treatment of steel grade SNB 7

Heat treated : 1136°C - 1818°C

Technological Curves of steel grade SNB 7

Cross Reference Table (Equivalent Grade) of SNB 7

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