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Material Description

Material Number Material Name Material Number (single) Standard Scope Standard Status Country Predecessor Successor VDA 231-106 classification
1.1231 (DIN EN 10132 : 2021-11) C67S 1.1231 DIN EN 10132 : 2021-11 DIN EN 10132 : 2021-11 replaced by DIN EN 10132 : 2022-04 Replaced Germany C67S C67S 1.1.1 1)
1) Remark: The steel C60S 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. The cold-rolled steel strip for springs possess a very high precision of measurements and very good state of the surface.

Chemical Composition

C [%] Cr [%] Cu [%] Mn [%] Mo [%] Ni [%] P [%] S [%] Si [%] Cr+Mo+Ni [%] 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 A80 [%] Hardness HRB Hardness HRC Hardness HV
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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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Heat Treatment

Heat Treatment Temperature [°C] Medium
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Cross Reference

Material Name Country Standard
65 China GB/T 1222 1)
U20652 China GB/T 1222 1)
65 China GB/T 3522 1)
U20652 China GB/T 3522 1)
C67S Europe EN 10132
65C6 India IS 2507 1)
3 India IS 2507 1)
CS 65 International ISO 4960 1)
S70C-CSP Japan JIS G 4802 1)
65A Russia GOST 14959 1)
65G Russia GOST 14959 1)
65GA Russia GOST 14959 1)
65Г Russia ГОСТ 14959 1)
65ГA Russia ГОСТ 14959 1)
A684 Grade 1070 USA ASTM A684 1)
Grade 1070 USA ASTM A684 1)
1070 USA AISI 1)
G10700 USA ASTM A684 1)
Ck 67 Germany DIN 17222
1) Source: Stahlschlüssel 2019, Verlag Stahlschlüssel Wegst GmbH, Marbach

Producer/Supplier/Trade names

Tradename Supplier
BE1231 BESTAR Stahlhandelgesellschaft Remscheid mbH, Remscheid 1)
Ck 67 Buderus Edelstahl GmbH, Wetzlar 1)
C67S Flender-Stahl Handelsgesellschaft mbh & Co. KG, Sundern 1)
1.1231 INTERSTAHL Service GmbH, Wetter 1)
1) Source: Stahlschlüssel 2019, Verlag Stahlschlüssel Wegst GmbH, Marbach