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Description

431 Stainless Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Stainless Steel: 431
Category Type Steel Grade Standard Country Application
Steel GradesStainless Steel 431
S42020
420FSe
S42023
616
S42200
S42225
619
S42300
439
S43035

Chemical composition(mass fraction)(wt.%) of the 431

C
Si
Mn
P
S
Cr Ni
0.20 1.00 1.00 0.040 0.030 15.0-17.0 1.25-2.50
Mo Al Cu Nb Ti V Ce
             
N Co Pb B Other    
             
             

Mechanical Properties of steel grade 431

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)
789 (≥) 626 (≥) 34 43 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 113

Physical Properties of steel grade 431

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 - -     0.43 -  
276 238 - 23.3 114   -  
775 - 43 42.2   244 434

Heat Treatment of steel grade 431

Heat treated : 1554°C - 1864°C

Technological Curves of steel grade 431

Cross Reference Table (Equivalent Grade) of 431

Grade Standard Country Application
AISI 431 AISI USA Martensitic special steel
ASTM 431 ASTM USA Martensitic special steel
UNS S43100 UNS USA Martensitic special steel
SUS431 JIS Japan Martensitic special steel
SUS431FB JIS Japan martensitic stainless steel
431S29 austenitic special steel
1.4313 AFNOR France Martensite And Precipitation Hardening
1.4310 AFNOR France Austenite
1.4318 AFNOR France Austenite
1.4311 AFNOR France Austenite
STS431 martensitic steel
STS431 martensitic steel
CNS 431 China CNS standard martensite stainless steel
E1431 Spain structural alloy steel
411431 The Czech republic Structural steel
11431 The Czech republic Structural steel
416431 The Czech republic Structural steel
16431 The Czech republic Structural steel
X4317 Australia Structural steel
X4317H Australia Structural steel

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