7475 Aircraft Aerospace Grade Aluminum Plate Sheet

7475 aircraft aerospace grade aluminum plate sheet has good technological plasticity and superplasticity, and the thin plate parts with complex shape can be superplastic forming with ultra-fine crystal structure.

7475 belongs to the Al-Zn-Mg-Cu series alloy. The 7475 aircraft aerospace grade aluminum plate sheet is used for aluminum-clad and non-aluminum-clad plates for the fuselage, wing skeletons, stringers, etc., and other existing high strength Also need parts with high fracture toughness.

7475 Aircraft aerospace grade aluminum plate sheet

7475 Aircraft aerospace grade aluminum plate sheet

The 7475 aluminum alloy sheet is supplied with O, T6 and T76, and the thick plate is supplied with T651, T7651 and T7351. Compared with the state of T76 and T6, the corrosion resistance, especially the anti peeling corrosion resistance, was improved, but the strength was reduced. Compared with the state of T7651 and T651, the resistance to peeling corrosion and stress corrosion resistance is improved, and the fracture toughness is improved, but the strength is reduced.

Chemical Composition of 7475 Alloy

Alloy

Si

Fe

Cu

Mn

Mg

Cr

Ni

Zn

Ti

Zr

        Others

Al

Each

Total

7475

0.1

0.12

1.2~1.9

0.06

1.9~2.6

0.18~0.25

~

5.2~6.2

0.06

~

0.05

0.15

Remainder

Alloy

Alloy series

Main features

σb  Value/MPa

Work Temperature/℃

7475

7075 series

The 7475 aluminum alloy sheet is supplied with O, T6 and T76, and the thick plate is supplied with T651, T7651 and T7351. Compared with the state of T76 and T6, the corrosion resistance, especially the anti peeling corrosion resistance, was improved, but the strength was reduced. Compared with the state of T7651 and T651, the resistance to peeling corrosion and stress corrosion resistance is improved, and the fracture toughness is improved, but the strength is reduced.

448~538

<125

Tensile mechanical properties of7475 T651 T7651 T7351 aluminum alloy sheet

Technical standard

Type

Temper

Thickness δ/mm

RMm/MPa

RP0.2/MPa

A10/

Q/6S 790

Aluminum sheet

O

1.0~1.6

<250

<140

10

>1.6

<250

<140

10

>4.8

<270

<145

10

T6

1.0~1.6

475

405

9

>1.6

485

415

9

>4.8

495

420

9

T76

1.0~1.6

455

380

9

>1.6

460

385

9

>4.8

475

395

9

Q/6S 829

Aluminum sheet

T6

1.0~1.6

475

405

9

>1.6

485

415

9

>4.8

495

420

9

Q/6S 792

Aluminum sheet

T6

1.0~1.6

455

380

9

>1.6

460

385

9

>4.8

475

395

9

Mechanical properties of 7475 T651 T7651 T7351 aluminum alloy sheet

Standard

Temper

Thicknessδ/mm

Direction

RMm/MPa

RP0.2/MPa

A10/

Q/6S 830

T651

6.5~12.5

L

531

462

9

LT

538

462

9

>12.5

L

531

469

8

LT

538

469

8

>25.4

L

524

462

6

LT

531

462

6

Q/6S 831

T7651

6.5~12.7

L

483

414

9

LT

490

414

9

>12.7

L

476

407

8

LT

483

407

8

>25.4

L

476

407

6

LT

483

407

6

Q/6S 791

T7351

6.5~38.0

L

469

393

10

LT

469

393

9

38.0

L

469

393

10

LT

469

393

9

ST

441

365

4

>38.0

L

462

379

40

LT

462

379

8

ST

441

359

4

Alloy

Temper

Aircraft model

Application parts and typical parts

7475

Aluminum sheet: O、T6、T76

Aluminum plate:  T651、T7651、T7351

Y8, Y12,J6,J7,J8 etc.

Panels, beams, frames, wing ribs, joints, etc.

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