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STR3

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STRl STR4
#STR3

Description

Korea KS STR3 KS standard martensite heat resistant steel and STR3 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: STR3
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy STR3 KS Korea KS standard martensite heat resistant steel
STR36
STR37
STR38
STR309
STR310
STR330
STR660
STR661
STR446
STRl

Chemical composition(mass fraction)(wt.%) of the STR3

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Mo(％)
0.35-0.45 1.80-2.50 Max 0.60 Max 0.03 Max 0.03 10.0-12.0 Max 0.60 0.70-1.30

Mechanical Properties of steel grade STR3

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)
145 (≥) 352 (≥) 21 14 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 222

Physical Properties of steel grade STR3

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 - -     0.12 -  
597 228 - 24.3 322   -  
385 - 14 22.2   443 241

Heat Treatment of steel grade STR3

Heat treated : 1785°C - 1623°C

Technological Curves of steel grade STR3

Cross Reference Table (Equivalent Grade) of STR3

Grade Standard Country Application
STR31 KS Korea KS standard austenitic heat resistant steel
STR35 KS Korea KS standard austenitic heat resistant steel
STR36 KS Korea KS standard austenitic heat resistant steel
STR37 KS Korea KS standard austenitic heat resistant steel
STR38 KS Korea KS standard austenitic heat resistant steel
STR309 KS Korea KS standard austenitic heat resistant steel
STR310 KS Korea KS standard austenitic heat resistant steel
STR330 KS Korea KS standard austenitic heat resistant steel
STR3 KS Korea KS standard martensite heat resistant steel
STRl STR4
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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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