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STS431

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STS420F2 STS440A
#STS431

Description

Korea KS STS431 martensitic steel and STS431 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Heat-Resistant Steel: STS431
Category Type Steel Grade Standard Country Application
Steel GradesHeat-Resistant Steel STS431 KS Korea martensitic steel
STSXM27
STS403
STS410
STS41oJl
STS41OF2
STS416
STS420J1
STS420J2
STS420F
STS420F2

Chemical composition(mass fraction)(wt.%) of the STS431

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％)
Max 0.20 Max 1.00 Max 1.00 Max 0.04 Max 0.03 15.O-17.0 1.25-2.50

Mechanical Properties of steel grade STS431

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)
928 (≥) 121 (≥) 23 21 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 234

Physical Properties of steel grade STS431

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
13 - -     0.23 -  
751 224 - 11.3 132   -  
993 - 24 32.2   324 133

Heat Treatment of steel grade STS431

Heat treated : 1949°C - 1957°C

Technological Curves of steel grade STS431

Cross Reference Table (Equivalent Grade) of STS431

Grade Standard Country Application
STS431 KS Korea martensitic steel
STS431 KS Korea martensitic steel
STS420F2 STS440A
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Jiangyou Longhai Special Steel Co.,Ltd.
Jiangyou Longhai Special Steel Co.,Ltd.

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

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