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Description

UK 320S31 austenitic special steel and 320S31 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Steel: 320S31
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Steel 320S31 UK austenitic special steel
303S42
304S11
304S15
304S31
310S31
316S11
316S13
316S31
316S33
320S31

Chemical composition(mass fraction)(wt.%) of the 320S31

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Mo(%) Ti(%)
Max 0.08 Max 1.00 Max 2.00 Max 0.045 Max 0.03 Max 0.03 11.0-14.0 2.00-2.50 5×C-0.80

Mechanical Properties of steel grade 320S31

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)
875 (≥) 319 (≥) 12 42 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 442

Physical Properties of steel grade 320S31

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
12 - -     0.43 -  
164 258 - 42.3 231   -  
546 - 34 41.2   223 341

Heat Treatment of steel grade 320S31

Heat treated : 1645°C - 1893°C

Technological Curves of steel grade 320S31

Cross Reference Table (Equivalent Grade) of 320S31

Grade Standard Country Application
320S31 UK austenitic special steel
320S31 UK austenitic special steel
320S33 UK austenitic special steel

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