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Description

Euronorm EN EN C55R Euronorm Structural steel and EN C55R Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: EN C55R
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel EN C55R EN Euronorm Euronorm Structural steel
EN C30R
EN C35E
EN C35R
EN C40E
EN C40R
EN C45E
EN C45R
EN C50E
EN C50R
EN C55E

Chemical composition(mass fraction)(wt.%) of the EN C55R

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Mo(%)
0.52-0.60 0.40 0.60-0.90 0.035 0.020-0.040 0.40 0.40 0.10

Mechanical Properties of steel grade EN C55R

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)
622 (≥) 948 (≥) 11 31 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 421

Physical Properties of steel grade EN C55R

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 - -     0.41 -  
473 464 - 34.3 442   -  
137 - 41 42.2   111 241

Heat Treatment of steel grade EN C55R

Heat treated : 1277°C - 1892°C

Technological Curves of steel grade EN C55R

Cross Reference Table (Equivalent Grade) of EN C55R

Grade Standard Country Application
C55R UNE Spain Spain structural alloy steel
EN C55R EN Euronorm Euronorm Structural steel

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