20Cr4 | 1.7027 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
1.7027 (DIN EN ISO 683-3 : 2022-06)	1.7027	DIN EN ISO 683-3 : 2022-06	Supersedes DIN EN ISO 683-3 : 2019-04	Valid	Germany	20Cr4	Alloy case-hardening steel for case-hardened machine parts.

Chemical Composition

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

Semi-finished Product	Condition	Hardness HB \| HBW	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	Step	Temperature [°C]	Holding Time [h]	Source
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Cross Reference

Material Name	Country	Standard	Source
20CrH	China	GB/T 5216	EN ISO 683-3:2022-02
ML20Cr	China	GB/T 28906	Stahlschlüssel 2019, Verlag Stahlschlüssel Wegst GmbH, Marbach
A20204	China	ISC	Stahlschlüssel 2019, Verlag Stahlschlüssel Wegst GmbH, Marbach
A20207	China	ISC	Stahlschlüssel 2019, Verlag Stahlschlüssel Wegst GmbH, Marbach
20Cr4	Europe	EN ISO 683-3
20Cr4	International	ISO 683-3
SCr420	Japan	JIS G 4052	EN ISO 683-3:2022-02
SCr420H	Japan	JIS G 4052	EN ISO 683-3:2022-02

Producer/Supplier/Trade names

Tradename	Supplier	Source
20Cr4	HEINE + BEISSWENGER Stiftung + Co.KG, Fellbach	Stahlschlüssel 2016, Verlag Stahlschlüssel Wegst GmbH, Marbach
20Cr4	Stahlwerk Annahütte Max Aicher GmbH & Co. KG, Hammerau	Stahlschlüssel 2016, Verlag Stahlschlüssel Wegst GmbH, Marbach

Material Compliance

REACh	RoHS
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Hardenability (Jominy test)

Condition	Front Distance [mm]	Hardness HRC (+H grade)	Hardness HRC (+HH grade)	Hardness HRC (+HL grade)	Source
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20Cr4 (1.7027; DIN EN ISO 683-3 : 2022-06)

Linear-elastic

Temperature [°C]	Young's 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	Source description
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Designation

Designation	Material number	Source
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20Cr4 | 1.7027 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

Hardenability (Jominy test)

20Cr4 (1.7027; DIN EN ISO 683-3 : 2022-06)

Linear-elastic

Electrical resistivity

Coefficient thermal expansion

Specific heat

Density

Thermal conductivity

Classification

Designation

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