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STS440B

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STS440A STS440C
#STS440B

Description

Korea KS D 3706 (2008), STS440B Specialsteel Stainless steel bars and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: STS440B
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel STS440B Martensite KS Korea Stainless steel bars

Chemical composition(mass fraction)(wt.%) of the STS440B

C Si Mn P S Cr Ni Mo N
0.75 -0.95 ≤1.00 ≤1.00 ≤0.040 ≤0.030 16.00 -18.00 ≤0.60 ≤0.75 ≤ ≥

Mechanical Properties of steel grade STS440B

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)
921 (≥) 969 (≥) 14 23 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 212

Physical Properties of steel grade STS440B

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
34 - -     0.33 -  
535 973 - 21.3 131   -  
585 - 22 12.2   424 434

Heat Treatment of steel grade STS440B

Heat treated : 1998°C - 1441°C

Technological Curves of steel grade STS440B

Cross Reference Table (Equivalent Grade) of STS440B

Grade Standard Country Application
STS440B
STS440B

Relevant standard of STS440B

D 3706 (2008) Stainless steel bars D-3706-(2008).pdf
STS440A STS440C
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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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