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STR446

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STR661 STRl
#STR446

Description

Korea KS STR446 KS standard ferrite heat resistant steel and STR446 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: STR446
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy STR446 KS Korea KS standard ferrite heat resistant steel
STR31
STR35
STR36
STR37
STR38
STR309
STR310
STR330
STR660
STR661

Chemical composition(mass fraction)(wt.%) of the STR446

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) N(%)
Max 0.20 Max 1.00 Max 1.50 Max 0.04 Max 0.03 23.0-27.0 Max 0.60 Max 0.25

Mechanical Properties of steel grade STR446

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)
765 (≥) 195 (≥) 31 13 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 212

Physical Properties of steel grade STR446

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
31 - -     0.13 -  
551 694 - 32.3 232   -  
173 - 22 13.2   422 311

Heat Treatment of steel grade STR446

Heat treated : 1878°C - 1756°C

Technological Curves of steel grade STR446

Cross Reference Table (Equivalent Grade) of STR446

Grade Standard Country Application
STR446 KS Korea KS standard ferrite heat resistant steel
STR661 STRl
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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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