DIN 1725-1 Grade 3.4365 T792 – High-Strength 7075 Aluminum for Aerospace Applications

DIN 3.4365 is a high-strength alloy that offers good stress-corrosion cracking resistance. Known as a mainstay in the aerospace industry since it was introduced, Aluminum 7075 brings moderate toughness as well as an excellent strength-to-weight ratio. It is also important to note that at sub-zero temperatures Aluminum 7075 increases in strength.

Additional services: Cuttings, Parts from drawings

STEEL SCOUT

DISTRIBUTOR

Information and services

Quantity: 1 PCS

Properties

General

Property	Temperature	Value	Condition	Related Standards	Shape
Density	20.0 °C	2.8 g/cm³	T792	WL 3.4364-1, DIN 1725-1	Profile

Mechanical

Property	Temperature	Value	Condition	Related Standards	Shape	Comment
Bulk Modulus	20.0 °C	72.5 GPa	T792	WL 3.4364-1, DIN 1725-1	Profile
Elastic modulus	20.0 °C	71.0 GPa	T792	WL 3.4364-1, DIN 1725-1	Profile
Elongation	20.0 °C	6.0 %	T792	WL 3.4364-1, DIN 1725-1	Profile
	20.0 °C	8.0 %	T792	WL 3.4364-1, DIN 1725-1	Profile
Hardness, Brinell	20.0 °C	140.0 [-]	T792	WL 3.4364-1, DIN 1725-1	Profile
Plane-Strain Fracture Toughnes		22.0 - 35.0 MPa·√m				Typical for Wrought 7000 Series Aluminium
Poisson's ratio		0.33 [-]				Typical for Wrought 7000 Series Aluminium
Shear modulus		26.4 - 27.1 GPa				Typical for Wrought 7000 Series Aluminium
Tensile strength	20.0 °C	520.0 MPa	T792	WL 3.4364-1, DIN 1725-1	Profile
	20.0 °C	540.0 MPa	T792	WL 3.4364-1, DIN 1725-1	Profile

Thermal

Property	Value	Comment
Coefficient of thermal expansion	2.1e-05 - 2.4e-05 1/K	Typical for Wrought 7000 Series Aluminium
Melting point	465.0 - 655.0 °C	Typical for Wrought 7000 Series Aluminium
Specific heat capacity	795.0 - 1050.0 J/(kg·K)	Typical for Wrought 7000 Series Aluminium
Thermal conductivity	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	Typical for Wrought 7000 Series Aluminium
Electrical resistivity	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 %	T792	WL 3.4364-1, DIN 1725-1	Profile
Copper	1.2 - 2.0 %	T792	WL 3.4364-1, DIN 1725-1	Profile
Iron	0.5	T792	WL 3.4364-1, DIN 1725-1	Profile
Magnesium	2.1 - 2.9 %	T792	WL 3.4364-1, DIN 1725-1	Profile
Manganese	0.3	T792	WL 3.4364-1, DIN 1725-1	Profile
Silicon	0.4	T792	WL 3.4364-1, DIN 1725-1	Profile
Titanium	0.2	T792	WL 3.4364-1, DIN 1725-1	Profile
Zinc	5.1 - 6.1 %	T792	WL 3.4364-1, DIN 1725-1	Profile

Technological properties

Property
Brazing	Excellent

Property

Brazing

Excellent

DIN 1725‑1 Grade 3.4365 O – Premium High‑Strength Aluminum Alloy for Aerospace DIN 1725-1 Grade 3.4365 T79511 – High-Strength 7075 Aluminum Alloy

Metal