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Description

UK 302S31 austenite and ferrite special steel and 302S31 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Steel: 302S31
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Steel 302S31 UK austenite and ferrite special steel
X2CrNiM0N22-5-3
1.4462
X2CrNiN23-4
1.4362
X2CrNiM0CuN25-6-3
1.4507
X2CrNiM0N25-7-4
1.4410
X2CrNiM0CuWN25-7-4
1.4501

Chemical composition(mass fraction)(wt.%) of the 302S31

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%)
Max 0.12 Max 1.00 Max 2.00 Max 0.045 Max 0.03 17.0-19.0 8.00-10.0

Mechanical Properties of steel grade 302S31

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)
215 (≥) 873 (≥) 31 12 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 431

Physical Properties of steel grade 302S31

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
43 - -     0.22 -  
417 283 - 24.3 112   -  
491 - 32 22.2   212 214

Heat Treatment of steel grade 302S31

Heat treated : 1767°C - 1223°C

Technological Curves of steel grade 302S31

Cross Reference Table (Equivalent Grade) of 302S31

Grade Standard Country Application
302S31 UK austenite and ferrite special steel

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