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20CrS4 | 1.7028 Material Datasheet

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Material Description

Material Number	Material Number (single)	Standard	Scope	Standard Status	Country	Successor	VDA 231-106 classification
1.7028 (DIN EN 10277 : 2018-09)	1.7028	DIN EN 10277 : 2018-09	DIN EN 10277 : 2018-09 replaced by DIN EN ISO 683-7 : 2025-02	Replaced	Germany	20CrS4	1.1	1)
1) Remark: Alloy case-hardening steel for case-hardened machine parts.

Chemical Composition

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

Semi-finished Product	Condition	Nominal Size [mm]	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
20CrS4	Europe	EN 10277
1.7028	Europe		1)
20CrS4	Europe	EN ISO 683-3
20CrS4	International	ISO 683-3
1) Source: EN ISO 683-3 : 2018-06

Producer/Supplier/Trade names

Tradename	Supplier
20CrS4	ArcelorMittal Distribution GmbH, Köln
20CrS4	DIROSTAHL, Remscheid
20CrS4	Georgsmarienhütte GmbH, Georgsmarienhütte
20CrS4	HEINE + BEISSWENGER Stiftung + Co.KG, Fellbach
20CrS4	Salzgitter Mannesmann Stahlhandel GmbH, Düsseldorf
20CrS4	voestalpine AG, Linz

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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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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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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