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9S20 | 1.0714 Material Datasheet

Material Standard Values

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Material Description

Material Number	Material Name	Material Number (single)	Standard	Scope	Standard Status	Country	Predecessor	VDA 231-106 classification
1.0714 (DIN EN ISO 683-7 : 2025-02)	9S20	1.0714	DIN EN ISO 683-7 : 2025-02	Supersedes DIN EN 10277 : 2018-09	Valid	Germany	9S20	1.1.1	1)
1) Remark: Free-cutting steel, not intended for heat-treatment, is used for semi-finished products (e.g. blooms, billets, slabs), bars and wire rod not intended for heat treatment for mechanical purposes.

Chemical Composition

C [%]	Mn [%]	P [%]	S [%]	Si [%]	Remainder
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Material Compliance

REACh	RoHS
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Mechanical Properties

Semi-finished Product	Condition	Nominal Size [mm]	Temperature [°C]	Tensile Strength [MPa]	Hardness HB \| HBW
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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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Cross Reference

Material Name	Country	Standard
Y08	China	GB/T 8731	1)
U71082	China	ISC	2)
9S20	Europe	EN ISO 683-7
1.0721	Europe
10C8S10	India	IS 4431	2)
9S20	International	ISO 683-7
SUM21	Japan	JIS G 4804	1)
SUM21	South Korea	KS D 3567	2)
A11	Russia	GOST 1414	2)
A11	Russia	ГОСТ 1414	2)
1212	USA	SAE	2)
G12120	USA	UNS	2)
1) Source: EN ISO 683-7:2024-10
2) Source: Stahlschlüssel 2019, Verlag Stahlschlüssel Wegst GmbH, Marbach

Producer/Supplier/Trade names

Tradename	Supplier
9S20	Andernach & Bleck GmbH & Co. KG, Hagen
9S20	HEINE + BEISSWENGER Stiftung + Co.KG, Fellbach
9S20	KSM Stahl GmbH, Empfingen
9S20	LSV Lech-Stahl Veredelung GmbH, Landsberg am Lech
9S20	Swiss Steel AG, Emmenbrücke
9S20	ThyssenKrupp Schulte GmbH, Essen