C75S | 1.1248 Material Datasheet

Material Test Series Values

Material Standard Values

Material Models for Simulation

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Material Description

Material Number	Material Number (single)	Standard	Range of Application	Standard Status	Country	Predecessor	Remark
1.1248 (DIN EN 10132 : 2022-04)	1.1248	DIN EN 10132 : 2022-04	Supersedes DIN EN 10132 : 2021-11	Valid	Germany	C75S	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 [%]	Cu [%]	Mn [%]	Mo [%]	Ni [%]	P [%]	S [%]	Si [%]	Cr+Mo+Ni [%]	Source
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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	Source
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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)]	Source
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Young's Modulus [GPa] vs Temperature [°C]

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Mean Coefficient of Thermal Expansion (reference 20°C) [10^-6*K^-1] vs Temperature [°C]

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Differential Coefficient of Thermal Expansion [10^-6*K^-1] vs Temperature [°C]

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Heat Treatment

Heat Treatment	Temperature [°C]	Medium	Source
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Cross Reference

Material Name	Country	Standard	Source
75	China	GB/T 699	Stahlschlüssel 2019, Verlag Stahlschlüssel Wegst GmbH, Marbach
U20752	China	GB/T 699	Stahlschlüssel 2019, Verlag Stahlschlüssel Wegst GmbH, Marbach
C75S	Europe	EN 10132
75C6	India	IS 2507	Stahlschlüssel 2019, Verlag Stahlschlüssel Wegst GmbH, Marbach
5	India	IS 2507	Stahlschlüssel 2019, Verlag Stahlschlüssel Wegst GmbH, Marbach
CS 75	International	ISO 4960	Stahlschlüssel 2019, Verlag Stahlschlüssel Wegst GmbH, Marbach
S75CM	Japan	JIS G 3311	Stahlschlüssel 2019, Verlag Stahlschlüssel Wegst GmbH, Marbach
75	Russia	GOST 14959	Stahlschlüssel 2019, Verlag Stahlschlüssel Wegst GmbH, Marbach
75A	Russia	GOST 14959	Stahlschlüssel 2019, Verlag Stahlschlüssel Wegst GmbH, Marbach
A684 Grade 1074	USA	ASTM A684	Metals & Alloys in the Unified Numbering System, SAE/ASTM, 11th Edition, 2008
Grade 1074	USA	ASTM A684	Metals & Alloys in the Unified Numbering System, SAE/ASTM, 11th Edition, 2008
1074	USA	AISI	Metals & Alloys in the Unified Numbering System, SAE/ASTM, 11th Edition, 2008
G10740	USA	ASTM A684	Metals & Alloys in the Unified Numbering System, SAE/ASTM, 11th Edition, 2008
Ck 75	Germany	DIN 17222

Producer/Supplier/Trade names

Tradename	Supplier	Source
BE1248	BESTAR Stahlhandelgesellschaft Remscheid mbH, Remscheid	Stahlschlüssel 2019, Verlag Stahlschlüssel Wegst GmbH, Marbach
Ck 75	Buderus Edelstahl GmbH, Wetzlar	Stahlschlüssel 2019, Verlag Stahlschlüssel Wegst GmbH, Marbach
DE1248	Dörrenberg Edelstahl GmbH, Engelskirchen	Stahlschlüssel 2019, Verlag Stahlschlüssel Wegst GmbH, Marbach
EBERLE 13	J. N. Eberle & Cie. GmbH, Augsburg	Stahlschlüssel 2019, Verlag Stahlschlüssel Wegst GmbH, Marbach
C75S	Flender-Stahl Handelsgesellschaft mbh & Co. KG, Sundern	Stahlschlüssel 2019, Verlag Stahlschlüssel Wegst GmbH, Marbach
15LM	SANDVIK Materials TEchnology Deutschland GmbH, Düsseldorf	Stahlschlüssel 2019, Verlag Stahlschlüssel Wegst GmbH, Marbach

Material Compliance

REACh	RoHS
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C75S (1.1248; DIN EN 10132 : 2022-04)

Linear-elastic

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

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

Temperature [°C]	0.2% Proof 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	Source description
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Designation

Designation	Material number	Source
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C75S (soft annealed or soft annealed and skin passed (+A or +A+LC); strip; 0.300-3.000mm)

Yield strength

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

Temperature [°C]	Tensile strength [MPa]
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Classification

Treatment	Semi-finished product	Dimension [mm]	Source description
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C75S (cold rolled (+CR); strip; 0.300-3.000mm)

Tensile strength

Temperature [°C]	Tensile strength [MPa]
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Classification

Treatment	Semi-finished product	Dimension [mm]	Source description
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C75S (quenched and tempered (+QT); strip; 0.300-3.000mm)

Tensile strength

Temperature [°C]	Tensile strength [MPa]
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Classification

Treatment	Semi-finished product	Dimension [mm]	Source description
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C75S | 1.1248 Material Datasheet

Material Test Series Values

Material Standard Values

Material Models for Simulation

Material Description

Chemical Composition

Mechanical Properties

Physical Properties

Young's Modulus [GPa] vs Temperature [°C]

Mean Coefficient of Thermal Expansion (reference 20°C) [10^-6*K^-1] vs Temperature [°C]

Differential Coefficient of Thermal Expansion [10^-6*K^-1] vs Temperature [°C]

Heat Treatment

Cross Reference

Producer/Supplier/Trade names

Material Compliance

C75S (1.1248; DIN EN 10132 : 2022-04)

Linear-elastic

Alternating stress

Yield strength

Electrical resistivity

Coefficient thermal expansion

Specific heat

Density

Tensile strength

Thermal conductivity

Classification

Designation

C75S (soft annealed or soft annealed and skin passed (+A or +A+LC); strip; 0.300-3.000mm)

Yield strength

Tensile strength

Classification

C75S (cold rolled (+CR); strip; 0.300-3.000mm)

Tensile strength

Classification

C75S (quenched and tempered (+QT); strip; 0.300-3.000mm)

Tensile strength

Classification

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