7A33 Aircraft Aerospace Grade Aluminum Plate Sheet

7A33 Aircraft aerospace grade aluminum plate sheet has high resistance to seawater and ocean atmosphere corrosion, without intergranular corrosion, stress corrosion and declining corrosion; the tensile strength Rm is equivalent to that of 2Al2 alloy, and it has quite high fracture toughness, process plasticity and Low notch sensitivity; can be spot welded and seam welded; 7A33 Aircraft aerospace grade aluminum plate sheet is suitable for manufacturing seaplanes, amphibious planes, shipboard and coastal helicopters, aircraft skins and structural parts, and can replace 2Al2 alloy .

 7A33 alloy is mainly supplied in thin plates, in the state of O and T6, and the melting temperature of the alloy is 606℃~645℃. It can be used to produce slabs with conventional melting and casting equipment. The 7A33 alloy has been successfully applied in seaplane skin manufacturing. In order to ensure that the alloy has good corrosion resistance in the marine environment, the chemistry of the alloy and the processing technology of semi-finished products should be strictly controlled.

7a33 aerospace grade aluminum plate has high process plasticity

7a33 aerospace grade aluminum plate has high process plasticity

Chemical Composition of 7A33 Alloy

Alloy

Si

Fe

Cu

Mn

Mg

Cr

Ni

Zn

Ti

Zr

Others

Al

Each

Total

7A33

0.20

0.30

0.25~0.55

0.05

2.2~2.7

0.10~0.20

4.6~5.4

0.05

0.05

0.15

Remainder

Tensile mechanical properties of 7A33 aluminum plate

Technical Standard

Type

Temper

Thickness δ/mm

RMm/MPa

RP0.2/MPa

A10/

Q/6S 146

Clad aluminum sheet

O

0.4~2.5

≤235

≥13

T6

0.4~2.5

≥405

≥335

≥8

O,T62

0.4~2.5

≥390

≥315

≥8

Q/6S 146

Non-clad aluminum sheet

T6

0.4~1.0

≥410

≥345

≥7

T6

>1.0~2.5

≥420

≥355

≥8

O

0.4~2.5

≤245

≥12

O,T62

0.4~2.5

≥410

≥335

≥8

Alloy

Temper

Aircraft type

Application parts and typical parts

7A33

Aluminum sheet: O、T6、T62

Y8, Y12,J6,J7,J8

Skin and structure, etc.

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