STS440C

This page provides STS440C datasheet, STS440C mechanical properties, chemical element STS440C, technical specifications of STS440C steel material properties. STS440C performance specifications.

KS STS440C
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy STS440C KS Korea martensitic steel
STS41oJl
STS41OF2
STS416
STS420J1
STS420J2
STS420F
STS420F2
STS431
STS440A
STS440B
Datasheet for:Steel Grades:Special Alloy:STS440C

Chemical composition(mass fraction)(wt.%) of the STS440C

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Mo(%)
0.95-1.20 Max 1.00 Max 1.00 Max 0.04 Max 0.03 16.0-18.O Max 0.60 Max 0.75

Mechanical properties / Mechanische Eigenschaften / Caracteristiques mecaniques of grade STS440C

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)
368 (≥) 616 (≥) 31 31 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 144
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 - -     0.22 -  
112 464 - 13.3 143   -  
274 - 13 14.2   222 411
Heat treated : 1329°C - 1119°C
Directory is being updated.
The material does not have direct Metallography properties.
Directory is being updated.
The material does not have direct Metallography properties.
Directory is being updated.
Cross Reference Table(Equivalent Grade)
Grade Standard Country Application
STS440C KS Korea
martensitic steel
STS440C KS Korea
martensitic steel
STS440C

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