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STRl

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STR446 STR3
#STRl

Description

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

Datasheet for: Steel Grades:Special Alloy: STRl
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy STRl KS Korea KS standard martensite heat resistant steel
STR35
STR36
STR37
STR38
STR309
STR310
STR330
STR660
STR661
STR446

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

C(％) Si(％) Mn(％) P(％) S(％) Cr(％)
0.40-0.50 3.00-3.50 Max 0.60 Max 0.03 Max 0.03 7.50-9.50

Mechanical Properties of steel grade STRl

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)
292 (≥) 913 (≥) 23 33 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 442

Physical Properties of steel grade STRl

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
33 - -     0.11 -  
252 683 - 42.3 143   -  
914 - 11 13.2   422 414

Heat Treatment of steel grade STRl

Heat treated : 1686°C - 1517°C

Technological Curves of steel grade STRl

Cross Reference Table (Equivalent Grade) of STRl

Grade Standard Country Application
STRl KS Korea KS standard martensite heat resistant steel
STRll KS Korea KS standard martensite heat resistant steel
STR446 STR3
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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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