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Description

SD490 Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: SD490
Category Type Steel Grade Standard Country Application
Steel GradesCarbon Steel SD490
SNR490B
STKN400W
STKN400B
STKN490B
SR235
SR295
SD295A
SD295B
SD345
SD390

Chemical composition(mass fraction)(wt.%) of the SD490

 


C
Si
Mn
P
S
Cr Ni
0.32 0.55 1.8 0.04 0.04    
Mo Al Cu Nb Ti V Ce
             
N Co Pb B Other C+Mn/6  
        бs/mpa 490-625 ≤0.6  
             

Mechanical Properties of steel grade SD490

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)
124 (≥) 319 (≥) 24 32 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 331

Physical Properties of steel grade SD490

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
33 - -     0.44 -  
362 623 - 11.3 132   -  
635 - 11 23.2   343 134

Heat Treatment of steel grade SD490

Heat treated : 1888°C - 1735°C

Technological Curves of steel grade SD490


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