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7020 T6 42mm Aluminum Bar

Last Updated: 2023-10-30

1.Prodsuct Description

7020 T6 42mm Aluminum Bar

Grade 7020 is a heat treatable aluminium alloy with zinc added as the main alloying element. This enhances the mechanical property attributes of the material and increases its resistance to fatigue stress.

The 7020 grade is primarily used in aerospace applications and offers a reasonable machinability. As a result the surface finish allows the material to be protective anodised but it will not lend itself to aesthetic anodising.

Forming and machining of aluminium / aluminum 7020 alloy is good. Welding, aesthetic anodizing and brazing or soldering is not suitable; however protective anodizing can be performed if required.


2.Chemical Composition

Chemical Composition

3.Typical Physical Properties

Typical Physical Properties
Density2.78 g/cm³
Thermal conductivity 134 W/m°K
Thermal expansion coefficient23.1 x 10-6
Electrical Conductivity37.5 IACS
Electrical resistivity0.046 microhm m
Modulus of elasticity68 GPa

4. Fabrication Properties

Fabrication Properties
Cold FormabilityGood 
WeldabilityThis grade is weldable but for more details contact the HD technical department.

5.Prodsuct feature 

7020 Alloy endowed with average mechanical characteristics, but highly suitable for welding, good corrosion resistance and good surface finish after protection anodization and hard. Typical uses of this alloy are: structures entailing welding, with tempering treatment not being vital after welding as maturation is sufficient to obtain good mechanical characteristics. It is also used in mechanical applications, armament, transport, aeronautical constructions etc.

7020-T6 aluminum is 7020 aluminum in the T6 temper. To achieve this temper, the metal is solution heat-treated and artificially aged until it meets standard mechanical property requirements.

Key Features:

Very good Mechanical Strengths 

Good resistance to fatigue strength. 

Good Machinability

6.Prodsuct Application

Grade 7020 is generally used in aerospace applications and for radiator and heat exchanger components.

7020 aluminum alloy belongs to medium high strength Al Zn Mg alloy, which has high strength, good welding performance and process performance. It is the main welding structural material for aerospace vehicles, ground vehicles and equipment, and is widely used to manufacture the car body of high-speed trains.

7.Company Information

Signi Aluminium Co., LTD.is located in Kunshan city,Jiangsu,China.Just less than 19 minutes of journey from Shanghai.  We specialize in high quality aluminum prodsucts,,including aluminum tube,bars,sheet/sheet,handlebars,and spare parts. ISO9001 and TS16949 quality system certification. Strict regulation process, improve training system and quality assurance system to guarantee process execution.

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