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Description

440B Stainless Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Stainless Steel: 440B
Category Type Steel Grade Standard Country Application
Steel GradesStainless Steel 440B
S42200
S42225
619
S42300
439
S43035
431
S43100
440A
S44002

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

 

 

C
Si
Mn
P
S
Cr Ni
0.75-0.95 1.00 1.00 0.040 0.030 16.0-18.0  
Mo Al Cu Nb Ti V Ce
≤0.75            
N Co Pb B Other    
             
             

Mechanical Properties of steel grade 440B

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)
939 (≥) 716 (≥) 14 13 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 232

Physical Properties of steel grade 440B

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
23 - -     0.23 -  
188 331 - 43.3 134   -  
189 - 33 24.2   141 141

Heat Treatment of steel grade 440B

Heat treated : 1984°C - 1584°C

Technological Curves of steel grade 440B

Cross Reference Table (Equivalent Grade) of 440B

Grade Standard Country Application
AISI 440B AISI USA Martensitic special steel
ASTM 440B ASTM USA Martensitic special steel
SUS440B JIS Japan Martensitic special steel
STS440B martensitic steel
STS440B martensitic steel
CNS 440B China CNS standard martensite stainless steel
CNS 440B China China Taiwan Stainless steel

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