EN 10083-1 Grade C55 normalized or normalized formed (+N)

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Description

Steel C55 is suitable for higher strained parts in vehicle, engine and transmission manufacturing that require an enhanced wear resistance. Preferred application for parts undergoing a surface hardening lower risk of tearing for larger and complexer parts than C60 (e.g. transmission gear wheels, shafts, indented rollers). Lowest appplication temp. -25 °C.

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Equivalent Materials

Ashby charts

See where falls on the material property chart for Density against Elastic modulus in your materials selection and design process.

Properties

General

Density ρ

7.8 - 7.85 g/cm³ at 20 °C

Mechanical

Elastic modulus E

217 GPa at -100 °C

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Elongation A

13 - 15 % at 20 °C

Elongation, transverse A

11 - 13 % at 20 °C

Poisson's ratio ν

0.29 [-] at 20 °C

Typical for Medium Carbon Steel

Shear modulus G

81 GPa at 20 °C

Tensile strength Rm

610 - 870 MPa at 20 °C

Tensile strength, transverse Rm,trans

610 - 870 MPa at 20 °C

Yield strength YS

300 - 370 MPa at 20 °C

Yield strength, transverse YStrans

300 - 370 MPa at 20 °C

Thermal

Coefficient of thermal expansion α

1.08E-5 1/K at -100 °C

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Max service temperature, long Tmaxlong

-25 - 0 °C

Melting point Tm

1380 - 1514 °C

Typical for Medium Carbon Steel

Specific heat capacity cp

423 J/(kg·K) at -100 °C

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Thermal conductivity λ

41.7 - 52 W/(m·K) at 20 °C

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Thermal diffusivity αdiff

11.6 mm²/s at 20 °C

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Electrical

Electrical resistivity ρel

1.2E-7 - 2.5E-7 Ω·m at 20 °C

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Chemical properties

Element

Weight %

Comment

Mn

0.6 - 0.9 %

C

0.52 - 0.6 %

Si

0.4 %

P

0.05 %

S

0.05 %

This material data has been provided by WIAM.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.