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Description

SCMQ4V Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: SCMQ4V
Category Type Steel Grade Standard Country Application
Steel GradesCarbon Steel SCMQ4V
SL5N590
SL9N520
SL9N590
SCMV1
SCMV2
SCMV3
SCMV4
SCMV5
SCMV6
SCMQ4E

Chemical composition(mass fraction)(wt.%) of the SCMQ4V

C
Si
Mn
P
S
Cr Ni
0.17  0.1 0.3-0.6 0.015  0.01  2.0-2.5  ≤0.4 
Mo Al Cu Nb Ti V La+Ce
0.9-1.1   ≤ 0.4 ≤ 0.07 ≤0.035  0.25-0.35  ≤0.015 
N Ca Pb B Other    
  ≤0.015    ≤0.003       
             

Mechanical Properties of steel grade SCMQ4V

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)
468 (≥) 244 (≥) 31 33 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 123

Physical Properties of steel grade SCMQ4V

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
43 - -     0.42 -  
695 298 - 11.3 232   -  
992 - 34 33.2   223 121

Heat Treatment of steel grade SCMQ4V

Heat treated : 1284°C - 1357°C

Technological Curves of steel grade SCMQ4V


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