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440A

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CNS 431 440B
#440A

Description

China CNS G3067, 440A Specialsteel Stainless steel bars and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: 440A
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel 440A Martensite CNS China Stainless steel bars

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

C Si Mn P S Ni Cr Mo
0.60 -0.75 ≤1.00 ≤1.00 ≤0.040 ≤0.030 ≤0.60 16.00 -18.00 ≤0.75

Mechanical Properties of steel grade 440A

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)
495 (≥) 773 (≥) 43 11 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 114

Physical Properties of steel grade 440A

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
21 - -     0.43 -  
578 918 - 22.3 123   -  
251 - 21 23.2   113 423

Heat Treatment of steel grade 440A

Heat treated : 1773°C - 1577°C

Technological Curves of steel grade 440A

Cross Reference Table (Equivalent Grade) of 440A

Grade Standard Country Application
440A
MT440A
440A
SUS440A
SUS440A
440A(S44002)
440A
440A
AISI 440A
ASTM 440A
SUS440A
SUS440A
STS440A
STS440A

Relevant standard of 440A

G3067 Stainless steel bars G3067.pdf
CNS 431 440B
Available Suppliers
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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