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Japan JIS SNB22-4 特殊应用螺栓合金钢棒材料 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SNB22-4 / SNB 22-4
Category Grade Standard Region/Area Standard Content
Metals SNB 22-4 JIS G4108 Japan 特殊应用螺栓合金钢棒材料

Chemical composition(mass fraction)(wt.%) of the SNB 22-4

Element Min Max Similar
Si 0.2000 0.3500 -
S - 0.0250 -
P - 0.0250 -
Mo 0.1500 0.2500 -
Mn 0.6500 1.1000 -
Cr 0.7500 1.2000 -
C 0.3900 0.4600 -

Mechanical Properties of steel grade SNB 22-4

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)
668 (≥) 961 (≥) 11 11 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 121

Physical Properties of steel grade SNB 22-4

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
44 - -     0.12 -  
141 987 - 42.3 334   -  
312 - 44 23.2   413 333

Heat Treatment of steel grade SNB 22-4

Heat treated : 1853°C - 1593°C

Technological Curves of steel grade SNB 22-4

Cross Reference Table (Equivalent Grade) of SNB 22-4

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