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35S20 | 1.0726 Material Datasheet

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Material Description

Material Number Material Number (single) Standard Scope Standard Status Country Predecessor VDA 231-106 classification
1.0726 (DIN EN ISO 683-7 : 2025-02) 1.0726 DIN EN ISO 683-7 : 2025-02 Supersedes DIN EN 10277 : 2018-09 Valid Germany 35S20 1.1 1)
1) Remark: The free-cutting case-hardening steel is used for bulk parts of mean strength, especially if ductility demands in transversal direction are as high as for usual C-steels (e.g. C35). 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 [%]
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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
Y30 China GB/T 8731 1)
U70302 China ISC 2)
35S20 Europe EN ISO 683-7
35S20 International ISO 683-7
A108 Grade 1140 USA ASTM A108 2)
1140 USA SAE 2)
G11400 USA UNS 2)
1) Source: EN ISO 683-7:2024-10
2) Source: Stahlschlüssel 2019, Verlag Stahlschlüssel Wegst GmbH, Marbach

Producer/Supplier/Trade names

Tradename Supplier
35S20 Andernach & Bleck GmbH & Co. KG, Hagen
35S20 HEINE + BEISSWENGER Stiftung + Co.KG, Fellbach
35S20 KSM Stahl GmbH, Empfingen
35S20 LSV Lech-Stahl Veredelung GmbH, Landsberg am Lech
35S20 Swiss Steel AG, Emmenbrücke
35S20 ThyssenKrupp Schulte GmbH, Essen