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Description

China CNS S55C China Taiwan Structural steel and S55C Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: S55C
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel S55C CNS China China Taiwan Structural steel
S30C
S33C
S35C
S38C
S40C
S43C
S45C
S48C
S50C
S53C

Chemical composition(mass fraction)(wt.%) of the S55C

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) N(%) Cu(%)
0.52-0.58 0.15-0.35 0.60-0.90 0.030 0.035 0.20 0.20 0.30

Mechanical Properties of steel grade S55C

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)
878 (≥) 568 (≥) 21 14 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 123

Physical Properties of steel grade S55C

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
23 - -     0.34 -  
411 296 - 14.3 411   -  
579 - 12 12.2   311 241

Heat Treatment of steel grade S55C

Heat treated : 1887°C - 1457°C

Technological Curves of steel grade S55C

Cross Reference Table (Equivalent Grade) of S55C

Grade Standard Country Application
S55C CNS China China Taiwan Structural steel

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