WL 3.4334-1 Grade 3.4334 T74

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Description

Material 3.4334 acc.to material specification of German Aviation WL 3.4334, part 1, edition 03.90, WL 3.4334, part 2, edition. 03.90 and WL 3.4334, part 100, edition. 03.90 is in its chemical composition similar to the materials 3.4364 (aviation mat.) and 3.4365 (AlZnMgCu1,5) acc. to DIN 1725/01, edition 02.83. It is used in the form of forged parts in heat-treatment conditions T74 and T7452. In comparison to forged parts of 3.4364 (AlZnMgCu1,5) forged parts of 3.4334T74bzw T7452 have a higher strength and comparable or higher vibration resistance and fracture toughness at concomitant favorable corrosion and stress corrosion resistance. The material is unusable for fusion-welding. Resistance welding is possible. Alloy 3.4334 is used in aircraft construction for fittings and landing gears.

Related Standards

WL 3.4334-1

Equivalent Materials

This material data has been provided by WIAM.

"Typical" values were obtained via a literature search. "Predicted" values were imputed via artificial intelligence technology. While we have placed significant efforts in ensuring data accuracy, "typical" and "predicted" data should be considered indicative and verified by appropriate material testing. Please do contact us if additional information on the the predicted data method is required.
All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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Properties

General

Property	Value	Comment
Density	2.7 - 2.85 g/cm³ Show Material materials with Density of 2.7 - 2.85 g/cm³	Typical for Wrought 7000 Series Aluminium

Mechanical

Property	Temperature	Value	Condition	Related Standards	Shape	Comment
Elastic modulus		69.0 - 72.0 GPa Show Material materials with Elastic modulus of 69.0 - 72.0 GPa				Typical for Wrought 7000 Series Aluminium
Elongation	20.0 °C	4.0 % Show Material materials with Elongation of 4.0 %	T74	WL 3.4334-1	Forging	Transverse
	20.0 °C	5.0 % Show Material materials with Elongation of 5.0 %	T74	WL 3.4334-1	Forging	Transverse
	20.0 °C	7.0 % Show Material materials with Elongation of 7.0 %	T74	WL 3.4334-1	Forging
	20.0 °C	8.0 % Show Material materials with Elongation of 8.0 %	T74	WL 3.4334-1	Forging
	20.0 °C	9.0 % Show Material materials with Elongation of 9.0 %	T74	WL 3.4334-1	Forging
Hardness, Brinell	20.0 °C	140.0 [-] Show Material materials with Hardness, Brinell of 140.0 [-]	T74	WL 3.4334-1	Forging	Transverse
	20.0 °C	140.0 [-] Show Material materials with Hardness, Brinell of 140.0 [-]	T74	WL 3.4334-1	Forging
Plane-Strain Fracture Toughnes		22.0 - 35.0 MPa·√m Show Material materials with Plane-Strain Fracture Toughnes of 22.0 - 35.0 MPa·√m				Typical for Wrought 7000 Series Aluminium
Poisson's ratio		0.33 [-] Show Material materials with Poisson's ratio of 0.33 [-]				Typical for Wrought 7000 Series Aluminium
Shear modulus		26.4 - 27.1 GPa Show Material materials with Shear modulus of 26.4 - 27.1 GPa				Typical for Wrought 7000 Series Aluminium
Tensile strength	20.0 °C	435.0 MPa Show Material materials with Tensile strength of 435.0 MPa	T74	WL 3.4334-1	Forging	Transverse
	20.0 °C	440.0 MPa Show Material materials with Tensile strength of 440.0 MPa	T74	WL 3.4334-1	Forging	Transverse
	20.0 °C	450.0 MPa Show Material materials with Tensile strength of 450.0 MPa	T74	WL 3.4334-1	Forging	Transverse
	20.0 °C	450.0 MPa Show Material materials with Tensile strength of 450.0 MPa	T74	WL 3.4334-1	Forging
	20.0 °C	455.0 MPa Show Material materials with Tensile strength of 455.0 MPa	T74	WL 3.4334-1	Forging	Transverse
	20.0 °C	460.0 MPa Show Material materials with Tensile strength of 460.0 MPa	T74	WL 3.4334-1	Forging	Transverse
	20.0 °C	470.0 MPa Show Material materials with Tensile strength of 470.0 MPa	T74	WL 3.4334-1	Forging	Transverse
	20.0 °C	470.0 MPa Show Material materials with Tensile strength of 470.0 MPa	T74	WL 3.4334-1	Forging
	20.0 °C	475.0 MPa Show Material materials with Tensile strength of 475.0 MPa	T74	WL 3.4334-1	Forging	Transverse
	20.0 °C	485.0 MPa Show Material materials with Tensile strength of 485.0 MPa	T74	WL 3.4334-1	Forging	Transverse
	20.0 °C	485.0 MPa Show Material materials with Tensile strength of 485.0 MPa	T74	WL 3.4334-1	Forging
	20.0 °C	490.0 MPa Show Material materials with Tensile strength of 490.0 MPa	T74	WL 3.4334-1	Forging	Transverse
	20.0 °C	490.0 MPa Show Material materials with Tensile strength of 490.0 MPa	T74	WL 3.4334-1	Forging
	20.0 °C	505.0 MPa Show Material materials with Tensile strength of 505.0 MPa	T74	WL 3.4334-1	Forging
	20.0 °C	525.0 MPa Show Material materials with Tensile strength of 525.0 MPa	T74	WL 3.4334-1	Forging

Thermal

Property	Value	Comment
Coefficient of thermal expansion	2.1e-05 - 2.4e-05 1/K Show Material materials with Coefficient of thermal expansion of 2.1e-05 - 2.4e-05 1/K	Typical for Wrought 7000 Series Aluminium
Melting point	465.0 - 655.0 °C Show Material materials with Melting point of 465.0 - 655.0 °C	Typical for Wrought 7000 Series Aluminium
Specific heat capacity	795.0 - 1050.0 J/(kg·K) Show Material materials with Specific heat capacity of 795.0 - 1050.0 J/(kg·K)	Typical for Wrought 7000 Series Aluminium
Thermal conductivity	121.0 - 170.0 W/(m·K) Show Material materials with Thermal conductivity of 121.0 - 170.0 W/(m·K)	Typical for Wrought 7000 Series Aluminium

Electrical

Property	Value	Comment
Electrical conductivity	18000000.0 - 34000000.0 S/m Show Material materials with Electrical conductivity of 18000000.0 - 34000000.0 S/m	Typical for Wrought 7000 Series Aluminium
Electrical resistivity	2.9e-08 - 5.6e-08 Ω·m Show Material materials with Electrical resistivity of 2.9e-08 - 5.6e-08 Ω·m	Typical for Wrought 7000 Series Aluminium

Chemical properties

Property	Value	Condition	Related Standards	Shape
Chromium	0.18 - 0.28 % Show Material materials with Chromium of 0.18 - 0.28 %	T74	WL 3.4334-1	Forging
Copper	1.2 - 2.0 % Show Material materials with Copper of 1.2 - 2.0 %	T74	WL 3.4334-1	Forging
Iron	0.2 Show Material materials with Iron of 0.2	T74	WL 3.4334-1	Forging
Magnesium	2.1 - 2.9 % Show Material materials with Magnesium of 2.1 - 2.9 %	T74	WL 3.4334-1	Forging
Manganese	0.1 Show Material materials with Manganese of 0.1	T74	WL 3.4334-1	Forging
Silicon	0.15 Show Material materials with Silicon of 0.15	T74	WL 3.4334-1	Forging
Titanium	0.1 Show Material materials with Titanium of 0.1	T74	WL 3.4334-1	Forging
Zinc	5.1 - 6.1 % Show Material materials with Zinc of 5.1 - 6.1 %	T74	WL 3.4334-1	Forging

Technological properties

Property

Brazing

Excellent