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STS440A

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STS431FB STS440B
#STS440A

Description

Korea KS D 3698 (2008), D 3705 (2008), D 3706 (2008), STS440A Specialsteel Stainless steel bars and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: STS440A
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel STS440A Martensite KS Korea Stainless steel bars

Chemical composition(mass fraction)(wt.%) of the STS440A

C Si Mn P S Cr Ni Mo N
0.60 -0.75 ≤1.00 ≤1.00 ≤0.040 ≤0.030 16.00 -18.00 ≤0.60 ≤0.75 ≤ ≥

Mechanical Properties of steel grade STS440A

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)
337 (≥) 682 (≥) 42 41 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 122

Physical Properties of steel grade STS440A

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 - -     0.32 -  
795 341 - 33.3 443   -  
347 - 22 24.2   134 133

Heat Treatment of steel grade STS440A

Heat treated : 1358°C - 1523°C

Technological Curves of steel grade STS440A

Cross Reference Table (Equivalent Grade) of STS440A

Grade Standard Country Application
STS440A
STS440A

Relevant standard of STS440A

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
STS431FB STS440B
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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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