2A11 Aircraft Aerospace Grade Aluminum Plate Sheet

2A11 aluminum alloy is one of the earliest duralumin, which generally becomes standard duralumin. 2A11 Aircraft aerospace grade aluminum plate sheet belongs to the AL-Mg-Cu series alloy. It is a high-strength duralumin with medium strength. The plasticity is still good in the hot state, and it can be strengthened by heat treatment. It is used in the quenched and natural aging state, and the spot weldability is good. 2A11 aluminum plate for bolts is often used as a material for bolts.

2A11 aluminum alloy is a medium strength high strength duralumin alloy

2A11 aluminum alloy is a medium strength high strength duralumin alloy

A bolt is a mechanical part, a round threaded fastener with a nut, and the bolt connection is a detachable connection. Bolts are called industrial meters, which shows that bolts are indispensable in industry. 2A11 aerospace aluminum for bolts has good heat resistance and processing properties, so it is also very suitable to make bolts.

Henan Chalco Aluminum is a professional manufacturer of 2A11 Aircraft aerospace grade aluminum plate sheet. Its bolts use 2A11 military aluminum with excellent tensile properties, strong plasticity, and high elongation. It often uses anodizing and painting methods or surface coatings. Clad aluminum layer to improve its corrosion resistance. In addition, 2A11 alloy has good spot welding and good machinability after quenching and cold work hardening.

Application of 2A11 aluminum alloy

Application of 2A11 aluminum alloy

  Chemical Compostion of Aircraft aerospace grade aluminum plate sheet

Alloy

Si

Fe

Cu

Mn

Mg

Cr

Ni

Zn

Ti

Zr

        Others

Al

Each

Total

2A11

0.70

0.70

3.8~4.8

0.4~0.8

0.4~0.8

~

0.10

0.30

0.15

~

0.05

0.15

Remainder

Alloy

Alloy Series

Main Features

Σb Values/MPa

Temperature /℃

2A11

Al-Cu-Mg

The alloy can be heat-treated with high strength and medium plasticity after solid solution heat treatment and natural aging. The welding performance of the alloy is better.

285~400

<150

Technical indexes of common 2A11 aluminum alloy

Alloy

Type

Temper

δ or d/mm

σb/MPa

σp 0.2/MPa

δ/%

KIC or KC/MPa

Standard

2A11

Clad aluminum sheet

O

0.5~2.9

≤225

 

12

GB/T 3880

>2.9

≤235

 

12

T42

0.5~2.9

≥350

≥185

15

>2.9

≥355

≥195

T3

0.5~1.6

≥375

≥215

15

>1.6

17

>2.9

15

T4

0.5~2.9

≥360

≥185

 

>2.9

≥370

≥195

T42

>4.5

≥355

≥195

15

>10.0

≥370

≥215

11

T42

>12.5

≥370

≥215

11

>25.0

≥330

≥195

8

>40.0

≥310

≥195

6

F

>70.0

≥285

≥195

4

2A11

2A11 Aircraft aerospace grade aluminum sheet

O

0.5~2.5

≤225

12

GJB 2053

>2.5

≤235

12

T4

0.5~2.5

≥365

≥185

15

>2.5

≥375

≥195

15

 

2A11

2A11 Aircraft aerospace grade aluminum plate

O

7~10

≤235

12

GJB 2662

T4

7~10

≥370

≥196

5

T4

7~10

≥355

≥186

12

>10

≥370

≥215

11

>25

≥335

≥196

8

>40

≥315

≥196

6

>70

≥285

≥196

4

T4

≤10.0

≥355

≥215

12

 

>10.0

≥375

≥225

12

 

>20.0

≥400

≥245

12

 

2024 Wedding Property

Alloy

Resistance welding

Melting welding

Argon arc welding

Note

2A11

Good

Worse

Worse

For gas welding and argon arc welding of aluminum alloy as solder, tend to form crystalline cracks; 4A01 alloy solder, forming cracks tend to be significantly reduced, but the strength of welded joint is greatly reduced, such as heat treatment after welding, the joint strength is close to the substrate, but the ductility decreases.

Alloy

Temper

Application model

Application parts and typical parts

2A11

Sheet: O、T3、T4、T42、F          Plate: O、T4

Y8

Front of the fuselage

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