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SNCM220

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STKM20A SNCM240
#SNCM220

Description

China CNS SNCM220 China Taiwan Structural steel and SNCM220 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: SNCM220
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel SNCM220 CNS China China Taiwan Structural steel
STKM16A
STKM16C
STKM17A
STKM17C
STKM18A
STKM18B
STKM18C
STKM19A
STKM19C
STKM20A

Chemical composition(mass fraction)(wt.%) of the SNCM220

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Mo(％) Cu(%)
0.17-0.23 0.15-0.35 0.60-0.90 0.030 0.030 0.40-0.65 0.40-0.70 0.15-0.30 0.30

Mechanical Properties of steel grade SNCM220

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)
298 (≥) 731 (≥) 13 14 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 244

Physical Properties of steel grade SNCM220

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 -  
368 342 - 43.3 141   -  
797 - 42 44.2   132 112

Heat Treatment of steel grade SNCM220

Heat treated : 1761°C - 1156°C

Technological Curves of steel grade SNCM220

Cross Reference Table (Equivalent Grade) of SNCM220

Grade Standard Country Application
SNCM220H CNS China China Taiwan Structural steel
SNCM220 CNS China China Taiwan Structural steel
STKM20A SNCM240
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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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