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Description

STC55 Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: STC55
Category Type Steel Grade Standard Country Application
Steel GradesCarbon Steel STC55
SG37
STC370
STC38
STC440
STC45
STC510A
STC52A
STC510B
STC52B
STC540

Chemical composition(mass fraction)(wt.%) of the STC55

 


C
Si
Mn
P
S
Cr Ni
0.25 0.55 1.8 0.04 0.04    
Mo Al Cu Nb Ti V Ce
      ≤0.15      
N Co Pb B Other    
             
             

Mechanical Properties of steel grade STC55

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)
123 (≥) 188 (≥) 21 44 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 123

Physical Properties of steel grade STC55

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
13 - -     0.34 -  
518 278 - 11.3 332   -  
761 - 11 11.2   341 444

Heat Treatment of steel grade STC55

Heat treated : 1938°C - 1849°C

Technological Curves of steel grade STC55


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