EN 10132-4 Grade C55S quenched (+Q)

EN 10132-4 Grade C55S quenched (+Q) introduction

The steel C55S is used as cold rolled strip for springs and special applications in thicknesses of up to 6 mm and as tempered cold strip in thicknesses from 0.30 to 3.00 mm.

Equivalent material: IS 55C6, IS 2, ASTM A684 Grade 1055, AISI 1055, ASTM G10550, DIN 1.1209, DIN Cm55, DIN C55R, DIN C55S, AFNOR C55R, AFNOR XC55H1u, BS C55R, SAE 1055, EN C55R, EN 1.1209, ISO C55M2, ISO C55R, ASTM 1055, UNS G10550

EN 10132-4 Grade C55S quenched (+Q) general

Property Temperature Value Comment
Density 23.0 °C Density of 7.8 - 7.9 g/cm³ Typical for Medium Carbon Steel

EN 10132-4 Grade C55S quenched (+Q) thermal

Property Temperature Value Comment
Coefficient of thermal expansion 23.0 °C Coefficient of thermal expansion of 1.32E-5 1/K Typical for Medium Carbon Steel
Max service temperature - Max service temperature of 500 °C Typical for Carbon Steel
Melting point - Melting point of 1380 - 1514 °C Typical for Medium Carbon Steel
Specific heat capacity 23.0 °C Specific heat capacity of 470 - 520 J/(kg·K) Typical for Medium Carbon Steel
Thermal conductivity 23.0 °C Thermal conductivity of 21 - 52 W/(m·K) Typical for Medium Carbon Steel

EN 10132-4 Grade C55S quenched (+Q) chemical

Property Value
Carbon Carbon of 0.52 - 0.6 %
Chromium Chromium of 0.4 %
Manganese Manganese of 0.6 - 0.9 %
Molybdenum Molybdenum of 0.1 %
Nickel Nickel of 0.4 %
Phosphorus Phosphorus of 0.03 %
Silicon Silicon of 0.15 - 0.35 %
Sulfur Sulfur of 0.025 %

EN 10132-4 Grade C55S quenched (+Q) electrical

Property Temperature Value Comment
Electrical resistivity 23.0 °C Electrical resistivity of 1.43E-7 - 1.74E-7 Ω·m Typical for Carbon Steel

EN 10132-4 Grade C55S quenched (+Q) mechanical

Property Temperature Value Comment
Elastic modulus 23.0 °C Elastic modulus of 200 - 215 GPa Typical for Medium Carbon Steel
Hardness, Rockwell C 20.0 °C Hardness, Rockwell C of 55 [-] -
Hardness, Vickers 20.0 °C Hardness, Vickers of 600 [-] -
Poisson's ratio 23.0 °C Poisson's ratio of 0.29 [-] Typical for Medium Carbon Steel
Shear modulus 23.0 °C Shear modulus of 75 - 80 GPa Typical for Carbon Steel

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