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Description

SL3N440 Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: SL3N440
Category Type Steel Grade Standard Country Application
Steel GradesCarbon Steel SL3N440
SEV35
SLA 235A
SLA 235B
SLA 325A
SLA 325B
SLA 365
SLA 410
SL2N255
SL3N255
SL3N275

Chemical composition(mass fraction)(wt.%) of the SL3N440

C
Si
Mn
P
S
Cr Ni
 0.15 0.3  0.7   0.025 0.025    3.25-3.75
Mo Al Cu Nb Ti V Ce
             
N Co Pb B Other    
          -110 ℃  
             

Mechanical Properties of steel grade SL3N440

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)
347 (≥) 885 (≥) 42 12 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 214

Physical Properties of steel grade SL3N440

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 - -     0.14 -  
154 354 - 13.3 423   -  
332 - 12 13.2   212 111

Heat Treatment of steel grade SL3N440

Heat treated : 1453°C - 1663°C

Technological Curves of steel grade SL3N440


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