Austenitic 31

Austenitic 31

China CNS Austenitic 31 China Taiwan Heat-Resistant Steel and Austenitic 31 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Category Type Steel Grade Standard Country Application
Steel Grades Heat-Resistant Steel Austenitic 31 CNS China China Taiwan Heat-Resistant Steel
SS14 2564
Austenitic 309
Austenitic 310
Austenitic 330
Austenitic 660
Austenitic 661
Ferrite 21
Ferrite 409
Ferrite 409L
Ferrite 446


Chemical composition(mass fraction)(wt.%) of the Austenitic 31

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) W(%)
0.35-0.45 1.50-2.50 Max 0.60 0.04 0.03 14.0-16.0 13.0-15.0 2.00-3.00



Mechanical Properties of steel grade Austenitic 31

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)
118 (≥) 612 (≥) 23 34 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 213

Physical Properties of steel grade Austenitic 31

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
24     0.13  
811 771 11.3 333    
792 34 12.2   223 121

Heat Treatment of steel grade Austenitic 31

Heat treated : 1917°C – 1785°C

Technological Curves of steel grade Austenitic 31

Cross Reference Table (Equivalent Grade) of Austenitic 31

Grade Standard Country Application
Austenitic 31 CNS China CNS standard heat resistant steel bars(CNS 9608-1998)
Austenitic 35 CNS China CNS standard heat resistant steel bars(CNS 9608-1998)
Austenitic 36 CNS China CNS standard heat resistant steel bars(CNS 9608-1998)
Austenitic 37 CNS China CNS standard heat resistant steel bars(CNS 9608-1998)
Austenitic 38 CNS China CNS standard heat resistant steel bars(CNS 9608-1998)
Austenitic 309 CNS China CNS standard heat resistant steel bars(CNS 9608-1998)
Austenitic 310 CNS China CNS standard heat resistant steel bars(CNS 9608-1998)
Austenitic 330 CNS China CNS standard heat resistant steel bars(CNS 9608-1998)
Austenitic 660 CNS China CNS standard heat resistant steel bars(CNS 9608-1998)
Austenitic 661 CNS China CNS standard heat resistant steel bars(CNS 9608-1998)
Austenitic 309 CNS China CNS standard heat resistant steel plates
Austenitic 309 CNS China China Taiwan Heat-Resistant Steel
Austenitic 310 CNS China China Taiwan Heat-Resistant Steel
Austenitic 330 CNS China China Taiwan Heat-Resistant Steel
Austenitic 660 CNS China China Taiwan Heat-Resistant Steel
Austenitic 661 CNS China China Taiwan Heat-Resistant Steel
Austenitic 31 CNS China China Taiwan Heat-Resistant Steel
Austenitic 35 CNS China China Taiwan Heat-Resistant Steel
Austenitic 36 CNS China China Taiwan Heat-Resistant Steel
Austenitic 37 CNS China China Taiwan Heat-Resistant Steel