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Description

Korea KS STS403 martensitic steel and STS403 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: STS403
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy STS403 KS Korea martensitic steel
STS329J1
STS329J3L
STS329J4L
STS405
STS410L
STS430
STS430F
STS434
STS447J1
STSXM27

Chemical composition(mass fraction)(wt.%) of the STS403

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%)
Max 0.15 Max O.50 Max 1.00 Max 0.04 Max O.030 11.5-13.0 Max 0.60

Mechanical Properties of steel grade STS403

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)
773 (≥) 673 (≥) 32 31 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 124

Physical Properties of steel grade STS403

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
21 - -     0.43 -  
445 633 - 14.3 143   -  
759 - 32 23.2   312 111

Heat Treatment of steel grade STS403

Heat treated : 1324°C - 1575°C

Technological Curves of steel grade STS403

Cross Reference Table (Equivalent Grade) of STS403

Grade Standard Country Application
STS403 KS Korea martensitic steel
STS403 KS Korea martensitic steel

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