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34CrNiMo6 | 1.6582 Material Datasheet

Material Test Series Values
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
1.6582 (DIN EN ISO 683-7 : 2025-02)	34CrNiMo6	1.6582	DIN EN ISO 683-7 : 2025-02	Supersedes DIN EN 10277 : 2018-09	Valid	Germany	34CrNiMo6	1.1.1	1)
1) Remark: The steel is suitable for high loaded parts of high heat-treatment sections as well as favorable ductility qualities in aircraft, heavy vehicle and machine engineering (e.g. propellershafts, connecting rods, transmission shafts).

Chemical Composition

C [%]	Cr [%]	Cu [%]	Mn [%]	Mo [%]	Ni [%]	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]	Yield Strength (0.2% offset) [MPa]	Elongation A [%]	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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Toughness Data (Impact)

Semi-finished Product	Condition	Nominal Size [mm]	Temperature [°C]	Specimen Shape	Notch Impact Energy [J]
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Fracture Toughness

Temperature [°C]	Yield Strength [MPa]	Plane-Strain Fracture Toughness KIc [MPa*m^½]
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Cross Reference

Material Name	Country	Standard
34CrNiMo6	Europe	EN ISO 683-7
34CrNiMo6	International	ISO 683-7
36CrNiMo6	International	ISO 683-18	1)
A108 Grade 4340	USA	ASTM A108	2)
4340	USA	SAE	2)
4340	USA	SAE	2)
Grade 4340	USA	SAE	2)
G43400	USA	UNS	2)
1) Source: Stahlschlüssel 2019, Verlag Stahlschlüssel Wegst GmbH, Marbach
2) Source: SAE HS-1086, ASTM DS56M, Metals & Alloys in the Unified Numbering System, 14th Edition, SAE International, 2023

Producer/Supplier/Trade names

Tradename	Supplier
34CrNiMo6	Andernach & Bleck GmbH & Co. KG, Hagen
34CrNiMo6	HEINE + BEISSWENGER Stiftung + Co.KG, Fellbach
34CrNiMo6	KSM Stahl GmbH, Empfingen
34CrNiMo6	LSV Lech-Stahl Veredelung GmbH, Landsberg am Lech
34CrNiMo6	Swiss Steel AG, Emmenbrücke
34CrNiMo6	ThyssenKrupp Schulte GmbH, Essen