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EN 10132-4 Grade C90S Cold-Rolled Steel – Premium C90S for Springs & Specialty Applications

The steel C90S 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.

Properties

General

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

Mechanical

Property	Temperature	Value	Comment
Elastic modulus	23.0 °C	200 - 215 GPa	Typical for Medium Carbon Steel
Hardness, Vickers	20.0 °C	325 [-]
Poisson's ratio	23.0 °C	0.29 [-]	Typical for Medium Carbon Steel
Shear modulus	23.0 °C	75 - 80 GPa	Typical for Carbon Steel
Tensile strength	20.0 °C	1200 MPa

Thermal

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

Electrical

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

Chemical properties

Property	Value
Carbon	0.85 - 0.95 %
Chromium	0.4 %
Manganese	0.4 - 0.7 %
Molybdenum	0.1 %
Nickel	0.4 %
Phosphorus	0.03 %
Silicon	0.15 - 0.35 %
Sulfur	0.025 %

EN 10132-4 Grade C60S Quenched Steel – High-Performance Cold-Rolled Strip EN 10132-4 Grade C90S Quenched Steel – Optimal for Springs & Cold‑Rolled Strips

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