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C75S | 1.1248 Material Datasheet

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Material Description

Material Number Material Number (single) Standard Range of Application Standard Status Country Successor
1.1248 (DIN EN 10132-4 : 2003-04) 1.1248 DIN EN 10132-4 : 2003-04 DIN EN 10132-4 : 2003-04 replaced by DIN EN 10132 : 2021-11 Replaced Germany C75S 1)
1) Remark: The steel C75S 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 [%] Mn [%] Mo [%] Ni [%] 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 A80 [%] Hardness HB | HBW Hardness HRC Hardness HV
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Physical Properties

Temperature [°C] Density [g/cm³] Young's 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
75 China GB/T 699 1)
U20752 China GB/T 699 1)
C75S Europe EN 10132-4
75C6 India IS 2507 1)
5 India IS 2507 1)
CS 75 International ISO 4960 1)
S75CM Japan JIS G 3311 1)
75 Russia GOST 14959 1)
75A Russia GOST 14959 1)
A684 Grade 1074 USA ASTM A684 2)
1074 USA AISI 2)
G10740 USA ASTM A684 2)
Ck 75 Germany 1)
1) Source: Stahlschlüssel 2016, Verlag Stahlschlüssel Wegst GmbH, Marbach
2) Source: Metals & Alloys in the Unified Numbering System, SAE/ASTM, 11th Edition, 2008

Producer/Supplier/Trade names

Tradename Supplier
15 LM voestalpine High Perfomance Metals Deutschland GmbH, Düsseldorf
Ck 75 Hoesch Hohenlimburg GmbH, Hagen
Ck 75 ThyssenKrupp Steel Europe AG, Duisburg
Ck 75 DIROSTAHL, Remscheid
Ck 75 C.D. Wälzholz GmbH & Co. KG, Hagen
Ck 75 Schmiedewerke Gröditz GmbH, Gröditz
Ck 75 voestalpine AG, Linz
Ck 75 Hammerwerk Erft, G. Diederichs GmbH & Co. KG, Bad Münstereifel-Arloff
1.1248 H. Kleineberg GmbH, Stelle
1.1248 INTERSTAHL Service GmbH, Wetter
1.1248 Eisen-Heinzl GmbH, Selb-Erkersreuth
1.1248 SIJ MWT GmbH, Landsberg am Lech
1.1248 DWK Drahtwerk Köln GmbH, Köln
BGH 1248 BGH Edelstahl Siegen GmbH
C75E Hoesch Hohenlimburg GmbH, Hagen
C75E ThyssenKrupp Steel Europe AG, Duisburg
C75E C.D. Wälzholz GmbH & Co. KG, Hagen
C75E Schmiedewerke Gröditz GmbH, Gröditz
C75E Stahlwerk Annahütte Max Aicher GmbH & Co. KG, Hammerau
C75E voestalpine AG, Linz
C75E Hammerwerk Erft, G. Diederichs GmbH & Co. KG, Bad Münstereifel-Arloff
C75S ArcelorMittal Commercial Germany, Cologne
C75S Buderus Edelstahl GmbH, Wetzlar
C75S Chesterfield Special Cylinders Ltd, Sheffield
Ck 75 Salzgitter Flachstahl GmbH, Salzgitter
Ck 75 Walzwerke Einsal GmbH, Nachrodt
Ck 75 Willy Haecker GmbH, Hückeswagen
Ck 75 Stahlwerk Unna GmbH & Co.KG, Unna
Ck 75 ZAPP AG, Ratingen
Ck 75 Stahlrump GmbH & Co.KG, Iserlohn
Ck 75 Böllinghaus Steel GmbH, Hilden
Ck 75 ROPA STAHLVERTRIEB GMBH, Bad Bergzabern
Ck 75 HEINE + BEISSWENGER Stiftung + Co.KG, Fellbach
Ck 75 BWS, Iserlohn-Letmathe, Servicecenter/Verwaltung, Iserlohn
Ck 75 Tata Steel, IJmuiden
Ck 75 Deutsche Edelstahlwerke Specialty Steel GmbH & Co. KG, Witten
Ck 75 Sidenor Deutschland, Düsseldorf
Ck 75 ASCOMETAL GmbH, Erkrath
Ck 75 Imet Industriemetall Handelsgesellschaft mbH, Hamburg
DE 1248 Dörrenberg Edelstahl GmbH, Engelskirchen
DIRO-C75E DIROSTAHL, Remscheid
Eberle 13 J. N. Eberle & Cie. GmbH, Augsburg
Klöckner Ck 75 Klöckner & Co SE, Duisburg
THYROFORT Ck 75 Deutsche Edelstahlwerke Specialty Steel GmbH & Co. KG, Witten
WESTIG 1.1248 Stahlwerk Ergste Westig GmbH, Schwerte

Material Compliance

REACh RoHS
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Linear-elastic

Temperature [°C] Young's modulus [GPa] Bulk modulus [GPa] Shear modulus [GPa] Poisson's ratio
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Alternating stress

Temperature [°C] Stress ratio Mean stress [MPa] Alternating stress [MPa] Cycles
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Yield strength

Temperature [°C] 0.1% Proof strength [MPa] 0.2% Proof strength [MPa] Yield strength [MPa]
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Electrical resistivity

Temperature [°C] Specific electrical resistance [µΩm]
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Coefficient thermal expansion

Related Temperature [°C] Temperature [°C] Coefficient thermal expansion [10^-6*K^-1]
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Specific heat

Temperature [°C] Specific heat [kJ/(kg*K)]
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Density

Temperature [°C] Density [g/cm³]
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Tensile strength

Temperature [°C] Tensile strength [MPa]
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Thermal conductivity

Temperature [°C] Thermal conductivity [W/(m*K)]
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Classification

WIAM Material Treatment Semi-finished product Dimension [mm] Load type Failure criteria Rolling direction Maximum stress [MPa] Strain at maximum stress [%] Source description
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Designation

Designation Material number Source
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Tensile strength

Temperature [°C] Tensile strength [MPa]
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Classification

WIAM Material Treatment Semi-finished product Dimension [mm] Load type Failure criteria Rolling direction Maximum stress [MPa] Strain at maximum stress [%] Source description
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Tensile strength

Temperature [°C] Tensile strength [MPa]
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Classification

WIAM Material Treatment Semi-finished product Dimension [mm] Load type Failure criteria Rolling direction Maximum stress [MPa] Strain at maximum stress [%] Source description
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Yield strength

Temperature [°C] 0.1% Proof strength [MPa] 0.2% Proof strength [MPa] Yield strength [MPa]
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Tensile strength

Temperature [°C] Tensile strength [MPa]
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Classification

WIAM Material Treatment Semi-finished product Dimension [mm] Load type Failure criteria Rolling direction Maximum stress [MPa] Strain at maximum stress [%] Source description
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