X12CrNiMo12 | 1.4939 Material Datasheet

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Material Description

Material Number	Material Name	Material Number (single)	Standard	Standard Status	Country	VDA 231-106 classification	Application temperature [°C]
1.4939 (WL 1.4939 : 1981-03)	X12CrNiMo12	1.4939	WL 1.4939 : 1981-03	Valid	Germany	1.1.2	≤ 550	1)
1) Remark: The stainless tempered chromium-nickel-molybdenum aerospace steel is used for compressor parts of engines, discs, blades, bolts and casing parts up to 550 °C. It is weldable and corrosion resistant under normal atmospheric conditions in the polished or precision ground condition.

Chemical Composition

C [%]	Cr [%]	Mn [%]	Mo [%]	N [%]	Ni [%]	P [%]	S [%]	Si [%]	Ti [%]	V [%]	Remainder
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Material Compliance

REACh	RoHS
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Mechanical Properties

Semi-finished Product	Condition	Condition Number	Nominal Size [mm]	Temperature [°C]	Specimen Direction	Tensile Strength [MPa]	Yield Strength (0.2% offset) [MPa]	Elongation A [%]	Elongation A50 [%]	Reduction of Area [%]	Hardness HB \| HBW	Hardness HV
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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)]	Electric Conductivity [MS/m]	Magnetizeability
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Toughness Data (Impact)

Semi-finished Product	Condition	Condition Number	Temperature [°C]	Specimen Shape	Specimen Direction	Notch Impact Energy [J]
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Welding and Joining

Procedure	Welding and Joining - Evaluation	Preheating [°C]	Working Temperature [°C]
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Creep Rupture Behaviour

Condition	Condition Number	Temperature [°C]	Creep Tensile Strength at 10² h [MPa]	Creep Tensile Strength at 3*10² h [MPa]	Creep Tensile Strength at 10³ h [MPa]	Creep Tensile Strength at 10^4 h [MPa]	Creep Tensile Strength at 10^5 h [MPa]	0.1% Creep Limit at 10² h [MPa]	0.1% Creep Limit at 3*10² h [MPa]	0.1% Creep Limit at 10³ h [MPa]	0.2% Creep Limit at 10^4 h [MPa]	0.2% Creep Limit at 10^5 h [MPa]
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Heat Treatment

Heat Treatment	Step	Temperature [°C]	Holding Time [h]	Medium
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Formability - Bending - Folding

Semi-finished Product	Condition	Condition Number	Nominal Size [mm]	Specimen Direction	Bend Factor (180°)
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Cross Reference

Material Name	Country	Standard
1.4939.2	Germany	WL 1.4939-1
1.4939.5	Germany	WL 1.4939-1
1.4939.6	Germany	WL 1.4939-2
FE-PM37	Europe	EN 2280	1)
FE-PM37	Europe	EN 2278	2)
FE-PM37	Europe	EN 2279	2)
Z 12 CNDV 12	France	AIR 9160	1)
AMS 5719	USA	AMS 5719	1)
S64152	USA	UNS	3)
S538	Great Britain	BS S 538	1)
S151	Great Britain	BS S 151	1)
X12CrNiMoVN12			4)
C50TF68	USA	GE Aviation	5)
DMD0242-20	France	Safran Aircraft Engines	5)
1) Source: WL 1.4939-1 : 1981-03
2) Source: WL 1.4939-2 : 1981-03
3) Source: Metals & Alloys in the Unified Numbering System, SAE/ASTM, 11th Edition, 2008
4) Source: Stahlschlüssel 2019, Verlag Stahlschlüssel Wegst GmbH, Marbach
5) Source: Aerospace Materials, voestalpine BÖHLER Aerospace GmbH & Co KG, Kapfenberg/Austria, 2022

Producer/Supplier/Trade names

Tradename	Supplier
Jethete M152	Aircraftmaterialsuk.com Ltd, Stokenchurch
ATI Jethete M152	AUBERT & DUVAL Deutschland GmbH, München	1)
X 13 VDW	AUBERT & DUVAL Deutschland GmbH, München	1)
BGH 4939	BGH Edelstahl Siegen GmbH	1)
Aerodur 4939	Deutsche Edelstahlwerke Specialty Steel GmbH & Co. KG, Witten	1)
Jethete	Enpar Sonderwerkstoffe GmbH, Gummersbach	1)
X12CrNiMo12	Schmiedewerke Gröditz GmbH, Gröditz	1)
4939	Schmidt + Clemens GmbH + Co. KG, Edelstahlwerk Kaiserau, Lindlar	1)
BÖHLER T552 (LW)	voestalpine BÖHLER Edelstahl GmbH & Co.KG, Kapfenberg	1)
T552 (LW)	voestalpine High Perfomance Metals Deutschland GmbH, Düsseldorf	1)
1) Source: Stahlschlüssel 2019, Verlag Stahlschlüssel Wegst GmbH, Marbach

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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Density

Temperature [°C]	Density [g/cm³]
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Linear-elastic

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

Temperature [°C]	Stress ratio	Alternating stress [MPa]	Cycles
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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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Thermal conductivity

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

Designation	Material number	Source
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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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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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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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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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X12CrNiMo12 | 1.4939 Material Datasheet

Material Standard Values

Material Models for Simulation

Material Description

Chemical Composition

Material Compliance

Mechanical Properties

Physical Properties

Toughness Data (Impact)

Welding and Joining

Creep Rupture Behaviour

Heat Treatment

Formability - Bending - Folding

Cross Reference

Producer/Supplier/Trade names

X12CrNiMo12 (1.4939; WL 1.4939 : 1981-03)

Classification

Density

Linear-elastic

Yield strength

Tensile strength

Alternating stress

Coefficient thermal expansion

Specific heat

Thermal conductivity

Designation

X12CrNiMo12 (quenched and tempered (+QT))

Classification

Yield strength

X12CrNiMo12 (quenched and tempered (+QT); forging; 0.000-100.000mm)

Classification

Yield strength

Tensile strength

X12CrNiMo12 (quenched and tempered (+QT); rod; 5.000-150.000mm)

Classification

Yield strength

Tensile strength

X12CrNiMo12 (quenched and tempered (+QT); strip; 0.100-6.000mm)

Classification

Yield strength

Tensile strength

X12CrNiMo12 (quenched and tempered for high hardness; forging; 0.000-50.000mm)

Classification

Yield strength

Tensile strength

X12CrNiMo12 (quenched and tempered for high hardness; rod; 5.000-50.000mm)

Classification

Yield strength

Tensile strength

Diagram Settings

Diagram Preview

Data Values

Series Points