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SUS440A

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SUS431 SUS440B
#SUS440A

Description

Japan JIS SUS440A Martensitic special steel and SUS440A Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Steel: SUS440A
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Steel SUS440A JIS Japan Martensitic special steel
SUS403
SUS410
SUS410J1
SUS410F2
SUS416
SUS420J1
SUS420J2
SUS420F
SUS420F2
SUS431

Chemical composition(mass fraction)(wt.%) of the SUS440A

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Mo(％)
0.60-0.75 Max 1.00 Max 1.00 Max 0.04 Max 0.03 16.0-18.0 Max 0.60 Max 0.75

Mechanical Properties of steel grade SUS440A

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)
474 (≥) 873 (≥) 14 21 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 413

Physical Properties of steel grade SUS440A

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
41 - -     0.43 -  
872 183 - 14.3 122   -  
316 - 43 13.2   324 442

Heat Treatment of steel grade SUS440A

Heat treated : 1489°C - 1519°C

Technological Curves of steel grade SUS440A

Cross Reference Table (Equivalent Grade) of SUS440A

Grade Standard Country Application
SUS440A JIS Japan Martensitic special steel
SUS431 SUS440B
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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