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SMnC420

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SMn443 SMnC443
#SMnC420

Description

China CNS SMnC420 China Taiwan Structural steel and SMnC420 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: SMnC420
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel SMnC420 CNS China China Taiwan Structural steel
SCM432
SCM435
SCM440
SCM445
SCM822
SACM645
SMn420
SMn433
SMn438
SMn443

Chemical composition(mass fraction)(wt.%) of the SMnC420

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Cu(%)
0.17-0.23 0.15-0.35 1.20-1.50 0.030 0.030 0.35-0.70 0.25 0.30

Mechanical Properties of steel grade SMnC420

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)
467 (≥) 128 (≥) 34 21 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 342

Physical Properties of steel grade SMnC420

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
42 - -     0.31 -  
266 585 - 22.3 443   -  
164 - 32 44.2   122 321

Heat Treatment of steel grade SMnC420

Heat treated : 1113°C - 1927°C

Technological Curves of steel grade SMnC420

Cross Reference Table (Equivalent Grade) of SMnC420

Grade Standard Country Application
SMnC420H CNS China China Taiwan Structural steel
SMnC420 CNS China China Taiwan Structural steel
SMn443 SMnC443
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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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