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Description

SM490YA Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: SM490YA
Category Type Steel Grade Standard Country Application
Steel GradesCarbon Steel SM490YA
SM400B
SM41B
SM400C
SM41C
SM490A
SM50A
SM490B
SM50B
SM490C
SM50C

Chemical composition(mass fraction)(wt.%) of the SM490YA

C
Si
Mn
P
S
Cr Ni
 0.2  0.55 1.6  0.035 0.035     
Mo Al Cu Nb Ti V Ce
             
N Co Pb B Other    
        thickness≤100mm 
CE=0.47
   
             

Mechanical Properties of steel grade SM490YA

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)
174 (≥) 341 (≥) 13 43 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 231

Physical Properties of steel grade SM490YA

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
11 - -     0.43 -  
559 327 - 43.3 322   -  
999 - 13 31.2   412 431

Heat Treatment of steel grade SM490YA

Heat treated : 1173°C - 1447°C

Technological Curves of steel grade SM490YA

Cross Reference Table (Equivalent Grade) of SM490YA

Grade Standard Country Application
SM490YA China China Taiwan Structural steel

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