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STS630

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STS440F STS631
#STS630

Description

Korea KS STS630 precipitation hardened steel and STS630 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: 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

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 of steel 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)
476 (≥) 726 (≥) 32 14 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 142

Physical Properties of steel grade STS630

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
23 - -     0.32 -  
735 547 - 32.3 433   -  
347 - 13 32.2   341 223

Heat Treatment of steel grade STS630

Heat treated : 1449°C - 1526°C

Technological Curves of steel grade STS630

Cross Reference Table (Equivalent Grade) of STS630

Grade Standard Country Application
STS630 KS Korea precipitation hardened steel
STS630 KS Korea precipitation hardened steel
STS440F STS631
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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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