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CNS 440F

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CNS 440C CNS 630
#440F

Description

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

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

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

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Mo(％)
0.95-1.20 Max 1.00 Max 1.25 Max 0.060 Max 0.15 16.00-18.00 Max 0.60 Max 0.75

Mechanical Properties of steel grade CNS 440F

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)
937 (≥) 872 (≥) 24 21 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 423

Physical Properties of steel grade CNS 440F

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 - -     0.31 -  
278 346 - 44.3 113   -  
673 - 33 11.2   131 211

Heat Treatment of steel grade CNS 440F

Heat treated : 1657°C - 1861°C

Technological Curves of steel grade CNS 440F

Cross Reference Table (Equivalent Grade) of CNS 440F

Grade Standard Country Application
AISI 440F AISI USA Martensitic special steel
AISI 440F Se AISI USA Martensitic special steel
Type440F UNS USA Martensitic special steel
Type440F UNS USA Martensitic special steel
SUS440F JIS Japan Martensitic special steel
STS440F KS Korea martensitic steel
STS440F KS Korea martensitic steel
CNS 440F CNS China CNS standard martensite stainless steel
CNS 440F CNS China China Taiwan Stainless steel
CNS 440C CNS 630
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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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