STS630

This page provides STS630 datasheet, STS630 mechanical properties, chemical element STS630, technical specifications of STS630 steel material properties. STS630 performance specifications.

KS STS630
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy STS630 KS Korea precipitation hardened steel
STS416
STS420J1
STS420J2
STS420F
STS420F2
STS431
STS440A
STS440B
STS440C
STS440F
Datasheet for:Steel Grades:Special Alloy: STS630

Chemical composition(mass fraction)(wt.%) of the STS630

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Cu(%) Nb(%)
Max 0.07 Max 1.00 Max 1.00 Max 0.04 Max 0.03 15.O-17.0 3.00-5.00 3.00-5.00 0.15-0.45

Mechanical properties / Mechanische Eigenschaften / Caracteristiques mecaniques of grade STS630

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)
597 (≥) 322 (≥) 11 22 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 221
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
32 - -     0.32 -  
947 378 - 44.3 441   -  
163 - 13 44.2   111 243
Heat treated : 1554°C - 1143°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
STS630 KS Korea
precipitation hardened steel
STS630 KS Korea
precipitation hardened steel
STS630

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STS630 can be supplied as steel plate/ sheet, round steel bar, steel tube/pipe, steel stripe, steel billet, steel ingot, steel wire rods. electroslag, forged ring/ block,etc.
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