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C40E | 1.1186 Material Datasheet

Material Test Series Values
Material Standard Values

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Material Description

Material Number	Material Number (single)	Standard	Scope	Standard Status	Country	Predecessor	VDA 231-106 classification
1.1186 (DIN EN ISO 683-7 : 2025-02)	1.1186	DIN EN ISO 683-7 : 2025-02	Supersedes DIN EN 10277 : 2018-09	Valid	Germany	C40E	1.1	1)
1) Remark: The steel is suitable for parts in general mechanical engineering and vehicle construction.

Chemical Composition

C [%]	Cr [%]	Cu [%]	Mn [%]	Mo [%]	Ni [%]	P [%]	S [%]	Si [%]	Cr+Mo+Ni [%]
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1) Source: blur

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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1) Source: blur

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)]
blur	blur	blur	blur	blur	blur	blur	blur	blur	blur	blur	1)
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blur	blur	blur	blur	blur	blur	blur	blur	blur	blur	blur	1)
blur	blur	blur	blur	blur	blur	blur	blur	blur	blur	blur	1)
blur	blur	blur	blur	blur	blur	blur	blur	blur	blur	blur	2)
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1) Source: blur
2) Source: blur

Toughness Data (Impact)

Semi-finished Product	Condition	Nominal Size [mm]	Temperature [°C]	Specimen Shape	Notch Impact Energy [J]
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1) Source: blur

Cross Reference

Material Name	Country	Standard
1040	Australia	AS 1443	1)
40	China	GB/T 699	2)
U20402	China	ISC	1)
C40E	Europe	EN ISO 683-7
C40E	International	ISO 683-7
S40C	Japan	JIS G 3311	2)
A108 Grade 1040	USA	ASTM A108	3)
1040	USA	SAE	3)
G10400	USA	UNS	3)
Ck 40	Germany		1)
1) Source: Stahlschlüssel 2019, Verlag Stahlschlüssel Wegst GmbH, Marbach
2) Source: EN ISO 683-7:2024-10
3) Source: SAE HS-1086, ASTM DS56M, Metals & Alloys in the Unified Numbering System, 14th Edition, SAE International, 2023

Producer/Supplier/Trade names

Tradename	Supplier
C40E	Andernach & Bleck GmbH & Co. KG, Hagen
C40E	HEINE + BEISSWENGER Stiftung + Co.KG, Fellbach
C40E	KSM Stahl GmbH, Empfingen
C40E	LSV Lech-Stahl Veredelung GmbH, Landsberg am Lech
C40E	Swiss Steel AG, Emmenbrücke
C40E	ThyssenKrupp Schulte GmbH, Essen