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STR31

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STS430TKC STR35
#STR31

Description

Korea KS STR31 KS standard austenitic heat resistant steel and STR31 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: STR31
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy STR31 KS Korea KS standard austenitic heat resistant steel
STS316TKA
STS316TKC
STS321TKA
STS347TKA
STS410TKA
STS410TKC
STS420J1TKA
STS420J2TKA
STS430TKA
STS430TKC

Chemical composition(mass fraction)(wt.%) of the STR31

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) W(%)
0.35-0.45 1.50-2.50 Max 0.60 Max 0.04 Max 0.03 14.0-16.0 13.0-15.0 2.00-3.00

Mechanical Properties of steel grade STR31

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)
963 (≥) 633 (≥) 42 22 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 424

Physical Properties of steel grade STR31

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
32 - -     0.22 -  
982 846 - 12.3 133   -  
486 - 14 34.2   441 244

Heat Treatment of steel grade STR31

Heat treated : 1374°C - 1239°C

Technological Curves of steel grade STR31

Cross Reference Table (Equivalent Grade) of STR31

Grade Standard Country Application
STR31 KS Korea KS standard austenitic heat resistant steel
STR310 KS Korea KS standard austenitic heat resistant steel
STS430TKC STR35
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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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