7B04 Aircraft Aerospace Grade Aluminum Plate Sheet

7B04 aluminum alloy is a high-purity and high-strength aluminum alloy based on 7A04 aluminum alloy in my country. It belongs to the Al-Zn-Mg-Cu series. The 7B04 aircraft aerospace grade aluminum plate sheet is mainly used in the aerospace field. 7B04 has better superplastic properties than other 7XXX series alloys. The superplasticity of 7B04 alloy has been successfully used in the world to make T-39 front fuselage compartments, B-lB bomber flap ribs and fuselage components; synthetic Apache Helicopter deck; 7B04 modified alloy superplastic forming the lower deck of the F-5E fighter's front control system.

7B04 aluminum alloy is high purity and high strength aluminum alloy

7B04 aluminum alloy is high purity and high strength aluminum alloy

Alloy

Alloy Series

Main Features

σb Value/MPa

Working Temperature/℃

7B04

B95(Russia)

The fracture toughness of 7A04 alloy is higher than that of 7A04 alloy by 10%~15%. The main varieties are sheet, profile, extruded wall plate and bar, forgings and so on. There are three kinds of T6, T73 and T74 in use. The ingot of this alloy is more difficult than 7A04 alloy. It is suitable for hot forming, such as rolling, extrusion, forging and so on. It can make all kinds of parts of size and shape.

440~590

<125

Mechanical properties of 7B04 aluminum alloy

Alloy

Type

Temper

δ  Size/mm

σb/MPa

σp 0.2/MPa

δ %

KIC or KC

Standard

7B04

Aluminum sheet

T6

0.5~1.9

480

400

7

11-CL-027B

>1.9~6.0

490

410

7

>6.0~10.5

490

410

6

T74

0.5~1.9

450~530

380~470

8

>1.9~4.5

460~540

380~470

8

>4.5~6.0

480~560

400~490

8

>6.0~10.5

470~550

390~480

8

T73

0.5~1.9

430~530

345~420

8

>1.9~4.5

440~510

355~430

8

>4.5~10.5

450~520

375~450

8

0-T6

0.5~1.0

470

390

7

>1.0~6.0

480

400

6

>6.0~10.5

480

400

6

Aluminum Skin plate

T6B

0.5~1.9

480

400

7

11-CL-026B

>1.9~6.0

490

400

7

>6.0~10.5

490

410

6

T74B

0.5~1.9

450~530

380~460

8

>1.9~4.5

460~540

380~460

8

>4.5~6.0

480~560

400~480

8

>6.0~10.5

470~550

390~470

8

T73B

0.5~1.9

430~550

345~420

8

>1.9~6.0

440~510

355~430

8

>6.0~10.5

450~520

375~450

8

T62B

0.5~1.9

470

390

7

>1.9~6.0

480

400

7

>6.0~10.5

480

400

6

pre-stretching aluminum plate

T651

11~25

530

460

7

11-CL-029B

   SWA/S1201-2002

26~50

530

460

6

51~60

520

440

5

61~80

490

420

4

T7451

11~50

490~560

420~500

7

51~60

470~540

380~460

6

61~85

460~530

365~440

6

T7351

11~50

470~540

400~480

7

51~60

450~520

365~440

6

61~85

440~510

345~420

6

>75~112

550

480

>112~125

530

460

T74

≤75

510~590

450~530

>75~125

490~590

420~530

T73

≤5

460~530

390~460

>5~40

480~550

420~490

>40~75

470~540

400~470

>75~125

460~530

390~460

ST:440~520

390~470

2

>100~125

L:450~540

390~470

6

LT:440~520

370~450

3

ST:420~500

380~460

2

Alloy

Temper

Aircraft Models

Application parts and typical parts

7B04

Aluminum sheet:  T6,T74,T73,T6B,T74B,T73B,T62B.

Aluminum plate:T651,T7451,T7351

Y8, Y12

Skin, wall board, all kinds of beams (backlog, forgings), frame, fin, long truss, joint, landing gear and so on.

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