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C25R | 1.1163 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
1.1163 (DIN EN ISO 683-7 : 2025-02)	1.1163	DIN EN ISO 683-7 : 2025-02	Supersedes DIN EN 10277 : 2018-09	Valid	Germany	C25R	1.1	1)
1) Remark: The steel is applicable for low loaded parts in vehicle manufacturing and machine engineering which have to meet higher demands on workability while maintaining mechanical properties (e.g. transmission parts, crankshafts, cylinder).

Chemical Composition

C [%]	Cr [%]	Cu [%]	Mn [%]	Mo [%]	Ni [%]	P [%]	S [%]	Si [%]	Cr+Mo+Ni [%]
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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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Cross Reference

Material Name	Country	Standard
25	China	GB/T 699	1)
25	China	GB/T 710	1)
25	China	GB/T 3275	1)
25	China	GB/T 8749	1)
U20252	China	ISC	1)
C25R	Europe	EN ISO 683-7
C25R	International	ISO 683-7
25C4	India	IS 1570 Part 2	1)
A29 Grade 1025	USA	ASTM A29	1)
A510 Grade 1025	USA	ASTM A510	1)
A576 Grade 1025	USA	ASTM A576	1)
A827 Grade 1025	USA	ASTM A827	1)
A830 Grade 1025	USA	ASTM A830	1)
1025	USA	SAE	1)
G10250	USA	UNS	1)
Cm 25	Germany	DIN 17200
1) Source: Stahlschlüssel 2019, Verlag Stahlschlüssel Wegst GmbH, Marbach

Producer/Supplier/Trade names

Tradename	Supplier
C25R	Andernach & Bleck GmbH & Co. KG, Hagen
C25R	HEINE + BEISSWENGER Stiftung + Co.KG, Fellbach
C25R	KSM Stahl GmbH, Empfingen
C25R	LSV Lech-Stahl Veredelung GmbH, Landsberg am Lech
C25R	Swiss Steel AG, Emmenbrücke
C25R	ThyssenKrupp Schulte GmbH, Essen

FKM Guideline Fatigue Strength

Semi-finished Product	Condition	Nominal Size [mm]	Tensile Strength [MPa]	Yield Strength [MPa]	Fatigue Limit under rev. Tension-Compression Stresses [MPa]	Fatigue Strength under pulsating Tensile Stresses [MPa]	Bending Fatigue Strength [MPa]	Shear Fatigue Strength [MPa]	Torsion Fatigue Strength [MPa]	Constant a for size factor Kd for yield stress Rp	Constant a for size factor Kd for tensile strength Rm
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