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STS431FB

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STS431 STS440A
#STS431

Description

Korea KS D 3691 (2001), STS431FB Specialsteel Stainless steel blooms and billets for forgings and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: STS431FB
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel STS431FB Martensite KS Korea Stainless steel blooms and billets for forgings

Chemical composition(mass fraction)(wt.%) of the STS431FB

C Si Mn P S Cr Ni Mo N
≤0.20 ≤1.00 ≤1.00 ≤0.040 ≤0.030 15.00 -17.00 1.25 -2.50 ≤ ≥ ≤ ≥

Mechanical Properties of steel grade STS431FB

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)
155 (≥) 623 (≥) 22 42 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 242

Physical Properties of steel grade STS431FB

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
41 - -     0.24 -  
728 555 - 41.3 113   -  
661 - 11 33.2   314 214

Heat Treatment of steel grade STS431FB

Heat treated : 1579°C - 1834°C

Technological Curves of steel grade STS431FB

Cross Reference Table (Equivalent Grade) of STS431FB

Grade Standard Country Application
STS431
STS431

Relevant standard of STS431FB

D 3691 (2001) Stainless steel blooms and billets for forgings D-3691-(2001).pdf
STS431 STS440A
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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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