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X40CrSiMo10-2 | 1.4731 Material Datasheet

Material Standard Values
Material Models for Simulation

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Material Description

Material Number	Material Name	Material Number (single)	Standard	Scope	Standard Status	Country	VDA 231-106 classification
1.4731 (DIN EN 10090 : 1998-03)	X40CrSiMo10-2	1.4731	DIN EN 10090 : 1998-03	Supersedes DIN 17480 : 1992-05	Valid	Germany	1.1.2	1)
1) Remark: X40CrSiMo10-2 is a martensitic CrSiMo-alloyed valve steel with high thermal resistance. Use: exhaust-valves (low scaling)

Chemical Composition

C [%]	Cr [%]	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 [%]	Reduction of Area [%]	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]	Thermal Conductivity [W/(m*K)]	Mean Specific Heat Capacity [kJ/(kg*K)]	Magnetizeability
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Creep Rupture Behaviour

Condition	Temperature [°C]	Creep Tensile Strength at 10³ h [MPa]
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Heat Treatment

Heat Treatment	Step	Temperature [°C]	Medium
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Cross Reference

Material Name	Country	Standard
40Cr10Si2Mo	China	GB/T 12773	1)
S48140	China	GB/T 12773	1)
X40CrSiMo10-2	Europe	EN 10090
X45Cr9Si3	India	IS 7494	1)
SUH3	Japan	JIS G 4311	1)
STR3	South Korea	KS D 3731	1)
40Ch10S2M	Russia	GOST 5632	1)
40Х10C2M	Russia	ГОСТ 5632	1)
SUH3	USA	SAE J775	1)
1) Source: Stahlschlüssel 2016, Verlag Stahlschlüssel Wegst GmbH, Marbach

Producer/Supplier/Trade names

Tradename	Supplier
1.4731	INOX SERVICE CENTER GmbH, Krefeld
1.4731	INTERSTAHL Service GmbH, Wetter
BÖHLER H 710	voestalpine High Perfomance Metals Deutschland GmbH, Düsseldorf
BÖHLER H 710	voestalpine BÖHLER Edelstahl GmbH & Co.KG, Kapfenberg
CHRONIMO 1.4731	Chronimo Edelstahl GmbH, Barsbüttel
Cogne VM 12 D	COGNE Edelstahl GmbH, Neuss
Dux 4731	Swiss Steel International GmbH, Düsseldorf
SIMO	AUBERT & DUVAL Deutschland GmbH, München
X 40 CrSiMo 10-2	HEINE + BEISSWENGER Stiftung + Co.KG, Fellbach

Linear-elastic

Temperature [°C]	Young's modulus [GPa]	Bulk modulus [GPa]	Shear modulus [GPa]	Poisson's ratio
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Alternating stress

Temperature [°C]	Stress ratio	Mean stress [MPa]	Alternating stress [MPa]	Cycles
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Yield strength

Temperature [°C]	0.1% Proof strength [MPa]	0.2% Proof strength [MPa]	Yield strength [MPa]
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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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Tensile strength

Temperature [°C]	Tensile strength [MPa]
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Thermal conductivity

Temperature [°C]	Thermal conductivity [W/(m*K)]
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Classification

WIAM Material	Treatment	Semi-finished product	Dimension [mm]	Load type	Failure criteria	Rolling direction	Maximum stress [MPa]	Strain at maximum stress [%]	Source description
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Designation

Designation	Material number	Source
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Yield strength

Temperature [°C]	0.1% Proof strength [MPa]	0.2% Proof strength [MPa]	Yield strength [MPa]
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Tensile strength

Temperature [°C]	Tensile strength [MPa]
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Classification

WIAM Material	Treatment	Semi-finished product	Dimension [mm]	Load type	Failure criteria	Rolling direction	Maximum stress [MPa]	Strain at maximum stress [%]	Source description
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Yield strength

Temperature [°C]	0.1% Proof strength [MPa]	0.2% Proof strength [MPa]	Yield strength [MPa]
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Tensile strength

Temperature [°C]	Tensile strength [MPa]
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Classification

WIAM Material	Treatment	Semi-finished product	Dimension [mm]	Load type	Failure criteria	Rolling direction	Maximum stress [MPa]	Strain at maximum stress [%]	Source description
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