1.7784 | 1.7784 Material Datasheet

Material Standard Values

Material Models for Simulation

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Material Description

Material Number	Material Number (single)	Standard	Range of Application	Standard Status	Country	Remark	Application temperature [°C]
1.7784 (WL 1.7784 : 2012-10)	1.7784	WL 1.7784 : 2012-10	Supersedes WL 1.7784 : 1976-11	Valid	Germany	The chromium-molybdenum-vanadium aerospace steel is used for highest strength parts, also in the welded condition, from -75 °C to 540 °C. The high temperature steel is not resistant to corrosion and weldable. Application: e.g. rocket tanks, gas tanks, landing gear parts, fittings, bolts, nuts (prestressed, post tempering thread rolled)	-75 - 540

Chemical Composition

C [%]	Cr [%]	Mn [%]	Mo [%]	P [%]	S [%]	Si [%]	V [%]	Source
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Mechanical Properties

Semi-finished Product	Condition	Condition Number	Nominal Size [mm]	Temperature [°C]	Specimen Direction	Tensile Strength [MPa]	Yield Strength [MPa]	Yield Strength (0.2% offset) [MPa]	Elongation A [%]	Reduction of Area [%]	Compressive Strength [MPa]	Shear Strength [MPa]	Hardness HB \| HBW	Hardness HV	Source	Remark
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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]	Thermal Conductivity [W/(m*K)]	Mean Specific Heat Capacity [kJ/(kg*K)]	Electric Conductivity [MS/m]	Magnetizeability	Source
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Young's Modulus [GPa] vs Temperature [°C]

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Mean Coefficient of Thermal Expansion (reference 20°C) [10^-6*K^-1] vs Temperature [°C]

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Welding and Joining

Procedure	Welding and Joining - Evaluation	Preheating [°C]	Holding Time [h]	Added Materials	Source	Remark
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Toughness Data (Impact)

Condition	Condition Number	Temperature [°C]	Specimen Shape	Specimen Direction	Notch Impact Energy [J]	Source
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Heat Treatment

Heat Treatment	Step	Temperature [°C]	Holding Time [h]	Medium	Source	Remark
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Cross Reference

Material Name	Country	Standard	Source
FE-PM 13 S	Europe	AECMA	WL 1.7784-100 : 2012-10
E-40 CDV 20	France	AIR 9160	WL 1.7784-100 : 2012-10
MIL-S-47262	USA	MIL-S-47262	WL 1.7784-100 : 2012-10
5Cr-Mo-V	USA	AMS 6487	WL 1.7784-100 : 2012-10
5Cr-Mo-V	USA	AMS 6485	WL 1.7784-100 : 2012-10
1.7784.2	Germany	WL 1.7784-2	WL 1.7784-2 : 2012-10
1.7784.3	Germany	WL 1.7784-3	WL 1.7784-3 : 2012-10
1.7784.5	Germany	WL 1.7784-2	WL 1.7784-2 : 2012-10
1.7784.6	Germany	WL 1.7784-2	WL 1.7784-2 : 2012-10
X41CrMoV5-1	Germany

Producer/Supplier/Trade names

Tradename	Supplier	Source
BMV 4 W	AUBERT & DUVAL Deutschland GmbH, München	Stahlschlüssel 2019, Verlag Stahlschlüssel Wegst GmbH, Marbach
1.7784	IMBACH & CIE AG, Nebikon	Stahlschlüssel 2019, Verlag Stahlschlüssel Wegst GmbH, Marbach
1.7784	Imet Industriemetall Handelsgesellschaft mbH, Hamburg	Stahlschlüssel 2019, Verlag Stahlschlüssel Wegst GmbH, Marbach
1.7784	INTERSTAHL Service GmbH, Wetter	Stahlschlüssel 2019, Verlag Stahlschlüssel Wegst GmbH, Marbach
X41CrMoV5-1	pauly STAHLHANDEL, Essen	Stahlschlüssel 2019, Verlag Stahlschlüssel Wegst GmbH, Marbach

Material Compliance

REACh	RoHS
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Hardenability (Jominy test)

Condition	Front Distance [mm]	Hardness HRC	Source	Remark
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Formability - Bending - Folding

Semi-finished Product	Condition	Nominal Size [mm]	Specimen Direction	Bend Factor (90°)	Bend Factor (180°)	Source
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1.7784 (1.7784; WL 1.7784 : 2012-10)

Linear-elastic

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

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

Temperature [°C]	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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Compressive strength

Temperature [°C]	Compressive ultimate strength [MPa]
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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	Source description
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Designation

Designation	Material number	Source
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1.7784 (quenched and tempered (+QT))

Compressive strength

Temperature [°C]	Compressive ultimate strength [MPa]
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Classification

Treatment	Source description
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1.7784 (quenched and tempered for high hardness)

Yield strength

Temperature [°C]	Yield strength [MPa]
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Compressive strength

Temperature [°C]	Compressive ultimate strength [MPa]
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Classification

Treatment	Source description
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1.7784 (quenched and tempered for high hardness; finished part)

Yield strength

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

Temperature [°C]	Tensile strength [MPa]
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Classification

Treatment	Semi-finished product	Source description
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1.7784 (quenched and tempered (+QT); finished part; 0.000-70.000mm)

Yield strength

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

Temperature [°C]	Tensile strength [MPa]
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Classification

Treatment	Semi-finished product	Dimension [mm]	Source description
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1.7784 (quenched and tempered for high hardness; finished part; 0.000-70.000mm)

Yield strength

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

Temperature [°C]	Tensile strength [MPa]
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Classification

Treatment	Semi-finished product	Dimension [mm]	Source description
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1.7784 (quenched and tempered (+QT); finished part)

Yield strength

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

Temperature [°C]	Tensile strength [MPa]
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Classification

Treatment	Semi-finished product	Source description
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1.7784 (annealed to achieve spheroidized carbides (+AC); sheet; 0.500-12.000mm)

Tensile strength

Temperature [°C]	Tensile strength [MPa]
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Classification

Treatment	Semi-finished product	Dimension [mm]	Source description
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1.7784 (annealed to achieve spheroidized carbides (+AC); rod; 5.000-40.000mm)

Tensile strength

Temperature [°C]	Tensile strength [MPa]
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Classification

Treatment	Semi-finished product	Dimension [mm]	Source description
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1.7784 (annealed to achieve spheroidized carbides (+AC); wire; 5.000-30.000mm)

Tensile strength

Temperature [°C]	Tensile strength [MPa]
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Classification

Treatment	Semi-finished product	Dimension [mm]	Source description
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1.7784 | 1.7784 Material Datasheet

Material Standard Values

Material Models for Simulation

Material Description

Chemical Composition

Mechanical Properties

Physical Properties

Young's Modulus [GPa] vs Temperature [°C]

Mean Coefficient of Thermal Expansion (reference 20°C) [10^-6*K^-1] vs Temperature [°C]

Welding and Joining

Toughness Data (Impact)

Heat Treatment

Cross Reference

Producer/Supplier/Trade names

Material Compliance

Hardenability (Jominy test)

Formability - Bending - Folding

1.7784 (1.7784; WL 1.7784 : 2012-10)

Linear-elastic

Alternating stress

Yield strength

Coefficient thermal expansion

Specific heat

Compressive strength

Density

Tensile strength

Thermal conductivity

Classification

Designation

1.7784 (quenched and tempered (+QT))

Compressive strength

Classification

1.7784 (quenched and tempered for high hardness)

Yield strength

Compressive strength

Classification

1.7784 (quenched and tempered for high hardness; finished part)

Yield strength

Tensile strength

Classification

1.7784 (quenched and tempered (+QT); finished part; 0.000-70.000mm)

Yield strength

Tensile strength

Classification

1.7784 (quenched and tempered for high hardness; finished part; 0.000-70.000mm)

Yield strength

Tensile strength

Classification

1.7784 (quenched and tempered (+QT); finished part)

Yield strength

Tensile strength

Classification

1.7784 (annealed to achieve spheroidized carbides (+AC); sheet; 0.500-12.000mm)

Tensile strength

Classification

1.7784 (annealed to achieve spheroidized carbides (+AC); rod; 5.000-40.000mm)

Tensile strength

Classification

1.7784 (annealed to achieve spheroidized carbides (+AC); wire; 5.000-30.000mm)

Tensile strength

Classification

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