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STS631

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STS630FB STS631CSP
#STS631

Description

Korea KS D 3534 (2002), D 3698 (2008), D 3705 (2008), D 3706 (2008), STS631 Specialsteel Stainless steel bars and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: STS631
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel STS631 Precipitation-Hardening KS Korea Stainless steel bars

Chemical composition(mass fraction)(wt.%) of the STS631

C Si Mn P S Cr Ni Mo N Al
≤0.09 ≤1.00 ≤1.00 ≤0.040 ≤0.030 16.00 -18.00 6.50 -7.75 ≤ ≥ ≤ ≥ 0.75 -1.50

Mechanical Properties of steel grade STS631

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)
661 (≥) 481 (≥) 12 14 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 431

Physical Properties of steel grade STS631

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
14 - -     0.24 -  
825 788 - 41.3 314   -  
442 - 23 13.2   324 334

Heat Treatment of steel grade STS631

Heat treated : 1955°C - 1372°C

Technological Curves of steel grade STS631

Cross Reference Table (Equivalent Grade) of STS631

Grade Standard Country Application
STS631
STS631

Relevant standard of STS631

D 3534 (2002) Cold rolled stainless steel strip for springs D-3534-(2002).pdf
D 3698 (2008) Cold rolled stainless steel plates, sheets and strip D-3698-(2008).pdf
D 3705 (2008) Hot rolled stainless steel plates, sheets and strip D-3705-(2008).pdf
D 3706 (2008) Stainless steel bars D-3706-(2008).pdf
STS630FB STS631CSP
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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...

Rfq.: sales@longhaisteel.com
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