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Description

X70W Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: X70W
Category Type Steel Grade Standard Country Application
Steel GradesCarbon Steel X70W
VAN-50
VAN-60
VAN-70
VAN-80
Vanity
X45W
X50W
X55W
X60W
X65W

Chemical composition(mass fraction)(wt.%) of the X70W

 

C
Si
Mn
P
S
Cr Ni
 0.26  0.3 1.65         
Mo Al Cu Nb Ti V Ce
      ≥0.01    ≥0.01   
N Co Pb B Other    
             
             

Mechanical Properties of steel grade X70W

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)
881 (≥) 943 (≥) 32 41 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 131

Physical Properties of steel grade X70W

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 - -     0.13 -  
127 475 - 34.3 413   -  
595 - 22 13.2   413 232

Heat Treatment of steel grade X70W

Heat treated : 1842°C - 1885°C

Technological Curves of steel grade X70W


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