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Ck 75 | 1.1248 Material Datasheet

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Material Description

Material Number Material Number (single) Standard Scope Standard Status Country VDA 231-106 classification
1.1248 (DIN 17222 : 1979-08) 1.1248 DIN 17222 : 1979-08 DIN 17222 : 1979-08 replaced by DIN EN 10132-1 : 2000-05 and DIN EN 10132-4 : 2003-04 Replaced Germany 1.1 1)
1) Remark: The steel Ck 75 is used as cold rolled steel strip for springs with high dimensional accuracy and surface condition up to 2.0 mm thicknesses.

Chemical Composition

C [%] Mn [%] P [%] S [%] Si [%]
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Mechanical Properties

Semi-finished Product Condition Nominal Size [mm] Temperature [°C] Specimen Direction Tensile Strength [MPa] Elongation A80 [%] 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 Step Temperature [°C] Medium
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Cross Reference

Material Name Country Standard
C75RR France NF
CS80 Great Britain BS
CS 75 International ISO 4991-99
C 75 Italy UNI 3545
1774 Sweden SS 141874
1075 USA SAE 403

Producer/Supplier/Trade names

Tradename Supplier
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
15 LM voestalpine High Perfomance Metals Deutschland GmbH, Düsseldorf
BGH 1248 BGH Edelstahl Siegen GmbH
Buderus Ck 75 Buderus Edelstahl GmbH, Wetzlar
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 voestalpine AG, Linz
C75E Hammerwerk Erft, G. Diederichs GmbH & Co. KG, Bad Münstereifel-Arloff
C75S ROPA STAHLVERTRIEB GMBH, Bad Bergzabern
C75S pauly STAHLHANDEL, Essen
Ck 75 Hoesch Hohenlimburg GmbH, Hagen
Ck 75 Salzgitter Flachstahl GmbH, Salzgitter
Ck 75 ThyssenKrupp Steel Europe AG, Duisburg
Ck 75 DIROSTAHL, Remscheid
Ck 75 Walzwerke Einsal GmbH, Nachrodt
Ck 75 Willy Haecker GmbH, Hückeswagen
Ck 75 Stahlwerk Unna GmbH & Co.KG, Unna
Ck 75 Stahlrump GmbH & Co.KG, Iserlohn
Ck 75 Böllinghaus Steel GmbH, Hilden
Ck 75 Schmiedewerke Gröditz GmbH, Gröditz
Ck 75 voestalpine AG, Linz
Ck 75 HEINE + BEISSWENGER Stiftung + Co.KG, Fellbach
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 Klöckner & Co SE, Duisburg
Ck 75 Imet Industriemetall Handelsgesellschaft mbH, Hamburg
Ck 75 Wilhelm Jungermann GmbH, Remscheid
Ck 75 Ruukki Deutschland GmbH, Duisburg
Ck75 Hammerwerk Erft, G. Diederichs GmbH & Co. KG, Bad Münstereifel-Arloff
DE 1248 Dörrenberg Edelstahl GmbH, Engelskirchen
DIRO-C75E DIROSTAHL, Remscheid
EBERLE 13 J. N. Eberle & Cie. GmbH, Augsburg
THYROFORT C75S Deutsche Edelstahlwerke Specialty Steel GmbH & Co. KG, Witten
UHB 15 voestalpine High Perfomance Metals Deutschland GmbH, Düsseldorf
WESTIG 1.1248 Zapp Precision Metals 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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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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