WL 3.4354-1 Grade 3.4354 T74

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Description

Alloy AlZnMgCuAg pertains to unstandardized special alloys of the alloy-type Al-Zn-Mg. It contains in addition to 2,4 % Mg 5,8 % Zn and 1 % Cu what is in combination strength determining. This alloy is artificial aging. It achieves highest strength (F 51) in artificial aged condition at concomitant highest stress corrosion resistance. Favorable stress corrosion resistance can be achieved by Cr- (0,10 to 0,25%) and Ag-(0,25 to 0,40%) addition in a low amount. The alloy is suitable for staticly and dynamicly high loaded construction parts. The alloy AlZnMgCuAg is better full hardenable and the fracture toughness enhances as well if Mg-content is increased to 2,5 % and Zn-content to 6%. The alloy has a high machinability and is on certain conditions weldable. When welding appears a heat-affected zone of low strength. Therefore welding should be avoided (if possible). A favorable corrosion resistance can only be warranted for existance of an appropriate surface protection coat. Corrosion resistance is considerably enhancable by artificial aging. Commercial delivery forms are forged parts, extrusion sections, wires and rods. Tubes only. This alloy is predominantly used for free-form and die forged parts in aircraft construction. Application: In aircraft construction for integral parts and fittings of higher dimension.

Related Standards

WL 3.4354-1

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 3.4354-1	Forging	Transverse
	20.0 °C	5.0 % Show Material materials with Elongation of 5.0 %	T74	WL 3.4354-1	Forging	Transverse
	20.0 °C	6.0 % Show Material materials with Elongation of 6.0 %	T74	WL 3.4354-1	Forging
	20.0 °C	7.0 % Show Material materials with Elongation of 7.0 %	T74	WL 3.4354-1	Forging, Rod, Profile
	20.0 °C	8.0 % Show Material materials with Elongation of 8.0 %	T74	WL 3.4354-1	Profile, Forging
Hardness, Brinell	20.0 °C	140.0 [-] Show Material materials with Hardness, Brinell of 140.0 [-]	T74	WL 3.4354-1	Forging, Rod	Transverse
	20.0 °C	140.0 [-] Show Material materials with Hardness, Brinell of 140.0 [-]	T74	WL 3.4354-1	Forging, Rod, Profile
Plane-Strain Fracture Toughnes	20.0 °C	22.0 - 38.0 MPa·√m Show Material materials with Plane-Strain Fracture Toughnes of 22.0 - 38.0 MPa·√m	T74	WL 3.4354-1	Rod
	20.0 °C	22.0 - 29.0 MPa·√m Show Material materials with Plane-Strain Fracture Toughnes of 22.0 - 29.0 MPa·√m	T74	WL 3.4354-1	Rod
	20.0 °C	22.0 - 36.0 MPa·√m Show Material materials with Plane-Strain Fracture Toughnes of 22.0 - 36.0 MPa·√m	T74	WL 3.4354-1	Rod
	20.0 °C	22.0 - 25.0 MPa·√m Show Material materials with Plane-Strain Fracture Toughnes of 22.0 - 25.0 MPa·√m	T74	WL 3.4354-1	Rod
	20.0 °C	22.0 MPa·√m Show Material materials with Plane-Strain Fracture Toughnes of 22.0 MPa·√m	T74	WL 3.4354-1	Rod
	20.0 °C	22.0 - 42.0 MPa·√m Show Material materials with Plane-Strain Fracture Toughnes of 22.0 - 42.0 MPa·√m	T74	WL 3.4354-1	Rod
	20.0 °C	22.0 - 28.0 MPa·√m Show Material materials with Plane-Strain Fracture Toughnes of 22.0 - 28.0 MPa·√m	T74	WL 3.4354-1	Rod
	20.0 °C	24.0 - 31.0 MPa·√m Show Material materials with Plane-Strain Fracture Toughnes of 24.0 - 31.0 MPa·√m	T74	WL 3.4354-1	Forging
	20.0 °C	24.0 - 32.0 MPa·√m Show Material materials with Plane-Strain Fracture Toughnes of 24.0 - 32.0 MPa·√m	T74	WL 3.4354-1	Forging
	20.0 °C	24.0 - 26.0 MPa·√m Show Material materials with Plane-Strain Fracture Toughnes of 24.0 - 26.0 MPa·√m	T74	WL 3.4354-1	Forging
	20.0 °C	24.0 MPa·√m Show Material materials with Plane-Strain Fracture Toughnes of 24.0 MPa·√m	T74	WL 3.4354-1	Forging
	20.0 °C	25.0 - 40.0 MPa·√m Show Material materials with Plane-Strain Fracture Toughnes of 25.0 - 40.0 MPa·√m	T74	WL 3.4354-1	Forging
	20.0 °C	25.0 - 28.0 MPa·√m Show Material materials with Plane-Strain Fracture Toughnes of 25.0 - 28.0 MPa·√m	T74	WL 3.4354-1	Forging, Rod
	20.0 °C	25.0 MPa·√m Show Material materials with Plane-Strain Fracture Toughnes of 25.0 MPa·√m	T74	WL 3.4354-1	Forging, Rod
	20.0 °C	25.0 - 26.0 MPa·√m Show Material materials with Plane-Strain Fracture Toughnes of 25.0 - 26.0 MPa·√m	T74	WL 3.4354-1	Forging
	20.0 °C	25.0 - 38.0 MPa·√m Show Material materials with Plane-Strain Fracture Toughnes of 25.0 - 38.0 MPa·√m	T74	WL 3.4354-1	Rod
	20.0 °C	25.0 - 29.0 MPa·√m Show Material materials with Plane-Strain Fracture Toughnes of 25.0 - 29.0 MPa·√m	T74	WL 3.4354-1	Rod
	20.0 °C	25.0 - 36.0 MPa·√m Show Material materials with Plane-Strain Fracture Toughnes of 25.0 - 36.0 MPa·√m	T74	WL 3.4354-1	Rod
	20.0 °C	25.0 - 42.0 MPa·√m Show Material materials with Plane-Strain Fracture Toughnes of 25.0 - 42.0 MPa·√m	T74	WL 3.4354-1	Rod
	20.0 °C	26.0 - 31.0 MPa·√m Show Material materials with Plane-Strain Fracture Toughnes of 26.0 - 31.0 MPa·√m	T74	WL 3.4354-1	Forging
	20.0 °C	26.0 - 32.0 MPa·√m Show Material materials with Plane-Strain Fracture Toughnes of 26.0 - 32.0 MPa·√m	T74	WL 3.4354-1	Forging
	20.0 °C	26.0 MPa·√m Show Material materials with Plane-Strain Fracture Toughnes of 26.0 MPa·√m	T74	WL 3.4354-1	Forging
	20.0 °C	26.0 - 40.0 MPa·√m Show Material materials with Plane-Strain Fracture Toughnes of 26.0 - 40.0 MPa·√m	T74	WL 3.4354-1	Forging
	20.0 °C	26.0 - 28.0 MPa·√m Show Material materials with Plane-Strain Fracture Toughnes of 26.0 - 28.0 MPa·√m	T74	WL 3.4354-1	Forging
	20.0 °C	28.0 - 40.0 MPa·√m Show Material materials with Plane-Strain Fracture Toughnes of 28.0 - 40.0 MPa·√m	T74	WL 3.4354-1	Forging
	20.0 °C	28.0 MPa·√m Show Material materials with Plane-Strain Fracture Toughnes of 28.0 MPa·√m	T74	WL 3.4354-1	Forging, Rod
	20.0 °C	28.0 - 38.0 MPa·√m Show Material materials with Plane-Strain Fracture Toughnes of 28.0 - 38.0 MPa·√m	T74	WL 3.4354-1	Rod
	20.0 °C	28.0 - 29.0 MPa·√m Show Material materials with Plane-Strain Fracture Toughnes of 28.0 - 29.0 MPa·√m	T74	WL 3.4354-1	Rod
	20.0 °C	28.0 - 36.0 MPa·√m Show Material materials with Plane-Strain Fracture Toughnes of 28.0 - 36.0 MPa·√m	T74	WL 3.4354-1	Rod
	20.0 °C	28.0 - 42.0 MPa·√m Show Material materials with Plane-Strain Fracture Toughnes of 28.0 - 42.0 MPa·√m	T74	WL 3.4354-1	Rod
	20.0 °C	29.0 - 38.0 MPa·√m Show Material materials with Plane-Strain Fracture Toughnes of 29.0 - 38.0 MPa·√m	T74	WL 3.4354-1	Rod
	20.0 °C	29.0 MPa·√m Show Material materials with Plane-Strain Fracture Toughnes of 29.0 MPa·√m	T74	WL 3.4354-1	Rod
	20.0 °C	29.0 - 36.0 MPa·√m Show Material materials with Plane-Strain Fracture Toughnes of 29.0 - 36.0 MPa·√m	T74	WL 3.4354-1	Rod
	20.0 °C	29.0 - 42.0 MPa·√m Show Material materials with Plane-Strain Fracture Toughnes of 29.0 - 42.0 MPa·√m	T74	WL 3.4354-1	Rod
	20.0 °C	31.0 MPa·√m Show Material materials with Plane-Strain Fracture Toughnes of 31.0 MPa·√m	T74	WL 3.4354-1	Forging
	20.0 °C	31.0 - 32.0 MPa·√m Show Material materials with Plane-Strain Fracture Toughnes of 31.0 - 32.0 MPa·√m	T74	WL 3.4354-1	Forging
	20.0 °C	32.0 MPa·√m Show Material materials with Plane-Strain Fracture Toughnes of 32.0 MPa·√m	T74	WL 3.4354-1	Forging
	20.0 °C	36.0 - 38.0 MPa·√m Show Material materials with Plane-Strain Fracture Toughnes of 36.0 - 38.0 MPa·√m	T74	WL 3.4354-1	Rod
	20.0 °C	36.0 MPa·√m Show Material materials with Plane-Strain Fracture Toughnes of 36.0 MPa·√m	T74	WL 3.4354-1	Rod
	20.0 °C	36.0 - 42.0 MPa·√m Show Material materials with Plane-Strain Fracture Toughnes of 36.0 - 42.0 MPa·√m	T74	WL 3.4354-1	Rod
	20.0 °C	38.0 MPa·√m Show Material materials with Plane-Strain Fracture Toughnes of 38.0 MPa·√m	T74	WL 3.4354-1	Rod
	20.0 °C	38.0 - 42.0 MPa·√m Show Material materials with Plane-Strain Fracture Toughnes of 38.0 - 42.0 MPa·√m	T74	WL 3.4354-1	Rod
	20.0 °C	40.0 MPa·√m Show Material materials with Plane-Strain Fracture Toughnes of 40.0 MPa·√m	T74	WL 3.4354-1	Forging
	20.0 °C	42.0 MPa·√m Show Material materials with Plane-Strain Fracture Toughnes of 42.0 MPa·√m	T74	WL 3.4354-1	Rod
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	440.0 MPa Show Material materials with Tensile strength of 440.0 MPa	T74	WL 3.4354-1	Forging	Transverse
	20.0 °C	450.0 MPa Show Material materials with Tensile strength of 450.0 MPa	T74	WL 3.4354-1	Forging	Transverse
	20.0 °C	460.0 MPa Show Material materials with Tensile strength of 460.0 MPa	T74	WL 3.4354-1	Forging, Rod	Transverse
	20.0 °C	460.0 MPa Show Material materials with Tensile strength of 460.0 MPa	T74	WL 3.4354-1	Forging
	20.0 °C	470.0 MPa Show Material materials with Tensile strength of 470.0 MPa	T74	WL 3.4354-1	Forging, Rod	Transverse
	20.0 °C	470.0 MPa Show Material materials with Tensile strength of 470.0 MPa	T74	WL 3.4354-1	Forging
	20.0 °C	480.0 MPa Show Material materials with Tensile strength of 480.0 MPa	T74	WL 3.4354-1	Forging	Transverse
	20.0 °C	480.0 MPa Show Material materials with Tensile strength of 480.0 MPa	T74	WL 3.4354-1	Forging
	20.0 °C	490.0 MPa Show Material materials with Tensile strength of 490.0 MPa	T74	WL 3.4354-1	Forging	Transverse
	20.0 °C	500.0 MPa Show Material materials with Tensile strength of 500.0 MPa	T74	WL 3.4354-1	Forging	Transverse
	20.0 °C	500.0 MPa Show Material materials with Tensile strength of 500.0 MPa	T74	WL 3.4354-1	Profile, Forging
	20.0 °C	510.0 MPa Show Material materials with Tensile strength of 510.0 MPa	T74	WL 3.4354-1	Forging, Profile, Rod
	20.0 °C	530.0 MPa Show Material materials with Tensile strength of 530.0 MPa	T74	WL 3.4354-1	Rod

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	0.1 - 0.25 % Show Material materials with Chromium of 0.1 - 0.25 %	T74	WL 3.4354-1	Forging, Profile, Rod
Copper	0.6 - 1.3 % Show Material materials with Copper of 0.6 - 1.3 %	T74	WL 3.4354-1	Forging, Profile, Rod
Iron	0.2 Show Material materials with Iron of 0.2	T74	WL 3.4354-1	Forging, Profile, Rod
Magnesium	2.1 - 2.9 % Show Material materials with Magnesium of 2.1 - 2.9 %	T74	WL 3.4354-1	Forging, Profile, Rod
Manganese	0.1 Show Material materials with Manganese of 0.1	T74	WL 3.4354-1	Forging, Profile, Rod
Silicon	0.2 Show Material materials with Silicon of 0.2	T74	WL 3.4354-1	Forging, Profile, Rod
Silver	0.25 - 0.4 % Show Material materials with Silver of 0.25 - 0.4 %	T74	WL 3.4354-1	Forging, Profile, Rod
Titanium	0.2 Show Material materials with Titanium of 0.2	T74	WL 3.4354-1	Forging, Profile, Rod
Zinc	5.5 - 6.5 % Show Material materials with Zinc of 5.5 - 6.5 %	T74	WL 3.4354-1	Forging, Profile, Rod

Technological properties

Property

Brazing

Excellent