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CNS 440C

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CNS 440B CNS 440F
#440C

Description

China CNS CNS 440C CNS standard martensite stainless steel and CNS 440C Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: CNS 440C
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy CNS 440C CNS China CNS standard martensite stainless steel
CNS 403
CNS 410
CNS 410J1
CNS 416
CNS 420J1
CNS 420J2
CNS 420F
CNS 431
CNS 440A
CNS 440B

Chemical composition(mass fraction)(wt.%) of the CNS 440C

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Mo(％)
0.95-1.20 Max 1.00 Max 1.00 Max 0.040 Max 0.030 16.00-18.00 Max 0.60 Max 0.75

Mechanical Properties of steel grade CNS 440C

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)
678 (≥) 225 (≥) 41 14 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 431

Physical Properties of steel grade CNS 440C

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
12 - -     0.21 -  
241 582 - 22.3 123   -  
733 - 13 33.2   441 244

Heat Treatment of steel grade CNS 440C

Heat treated : 1599°C - 1342°C

Technological Curves of steel grade CNS 440C

Cross Reference Table (Equivalent Grade) of CNS 440C

Grade Standard Country Application
ASTM 440C ASTM USA Martensitic special steel
SUS440C JIS Japan Martensitic special steel
STS440C KS Korea martensitic steel
STS440C KS Korea martensitic steel
CNS 440C CNS China CNS standard martensite stainless steel
440C AS Australia Australia Stainless steel
CNS 440C CNS China China Taiwan Stainless steel
CNS 440C CNS China China Taiwan Stainless steel
CNS 440B CNS 440F
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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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