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Description

S20400 High Alloy and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:High Alloy: S20400
Category Type Steel Grade Standard Country Application
Steel GradesHigh Alloy S20400
TP347
S34700
TP348
S34800
S31254
S30815
S31725
S31726
S34565
N08367

Chemical composition(mass fraction)(wt.%) of the S20400

C
Si
Mn
P
S
Cr Ni
0.03 1 7-9 0.045 0.03 15-17 1.5-3
Mo Al Cu Nb Ti V Ce
             
N Co Pb B Other    
0.15-0.3            
             

Mechanical Properties of steel grade S20400

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)
976 (≥) 535 (≥) 21 41 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 343

Physical Properties of steel grade S20400

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
33 - -     0.41 -  
595 663 - 21.3 422   -  
532 - 13 23.2   333 223

Heat Treatment of steel grade S20400

Heat treated : 1999°C - 1749°C

Technological Curves of steel grade S20400


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