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Description

SUS440A Stainless Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Stainless Steel: SUS440A
Category Type Steel Grade Standard Country Application
Steel GradesStainless Steel SUS440A
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
 0.6-0.75 1.0   1.0 0.04  0.03  16-18  0.6 
Mo Al Cu Nb Ti V Ce
 0.6            
N Co Pb B Other    
             
             

 

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)
216 (≥) 238 (≥) 32 34 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 322

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
22 - -     0.23 -  
437 244 - 13.3 142   -  
952 - 23 32.2   231 434

Heat Treatment of steel grade SUS440A

Heat treated : 1967°C - 1273°C

Technological Curves of steel grade SUS440A

Cross Reference Table (Equivalent Grade) of SUS440A

Grade Standard Country Application
SUS440A JIS Japan Martensitic special steel

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