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46S20 | 1.0727 Material Datasheet

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Material Description

Material Number Material Name Material Number (single) Standard Scope Standard Status Country Predecessor VDA 231-106 classification
1.0727 (DIN EN ISO 683-7 : 2025-02) 46S20 1.0727 DIN EN ISO 683-7 : 2025-02 Supersedes DIN EN 10277 : 2018-09 Valid Germany 46S20 1.1.1 1)
1) Remark: The free-cutting case-hardening steel is used for bulk parts of high strength, especially for low ductility demands in transversal direction compared to other C-steels (e.g. C45). Cutting speed is increased but higher cracking risk according to rising C-content has to be considered. According to this standard it will be delivered as levelled and bright steel sheared to length in the drawn, peeled or grinded condition.

Chemical Composition

C [%] Mn [%] P [%] S [%] Si [%] Remainder
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Material Compliance

REACh RoHS
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Mechanical Properties

Semi-finished Product Condition Nominal Size [mm] Temperature [°C] Tensile Strength [MPa] Yield Strength (0.2% offset) [MPa] Elongation A [%] Hardness HB | HBW
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Physical Properties

Temperature [°C] Density [g/cm³] Young's Modulus [GPa] Shear Modulus [GPa] Mean Coefficient of Thermal Expansion (reference 20°C) [10^-6*K^-1] Differential Coefficient of Thermal Expansion [10^-6*K^-1] Thermal Conductivity [W/(m*K)] Thermal Diffusivity [10^-6 m²/s] Specific Electrical Resistance [µΩm] Mean Specific Heat Capacity [kJ/(kg*K)] True Specific Heat Capacity [kJ/(kg*K)]
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Cross Reference

Material Name Country Standard
1146 Australia AS 1443 1)
Y45 China GB/T 8731 2)
U70452 China ISC 2)
45 S 20 Germany 1)
46S20 Europe EN ISO 683-7
46S20 International ISO 683-7
A108 Grade 1146 USA ASTM A108 1)
1146 USA SAE 1)
G11460 USA UNS 1)
1) Source: Stahlschlüssel 2019, Verlag Stahlschlüssel Wegst GmbH, Marbach
2) Source: EN ISO 683-7:2024-10