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United Aluminum - ALLOY 7075


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Alloy Group: 7XXX

PRINCIPAL ALLOYING ELEMENT: Zinc

Group: Heat Treatable Alloys

 

GENERAL DESCRIPTION: ALLOY 7075

7075 is an aluminum alloy with zinc as the primary alloying element. It is strong, with a strength comparable to many steels, and has good fatigue strength and average machinability, but has less resistance to corrosion than many other Al alloys. Due to its high strength, low density, thermal properties and its ability to be highly polished, 7075 is widely used in mold tool manufacture.

TYPICAL CHEMISTRY LIMITS:

Si

Fe

Cu

Mn

Mg

Cr

Zn

Ti

Others-Each

Others Total

Al

7075

0.40

0.50

1.2-2.0

0.30

2.1-2.9

0.18-0.28

5.1-6.1

0.20

0.05

0.15

Remainder

Composition according to Aluminum Association.

TYPICAL MECHANICAL DATA:

The following typical properties are not guaranteed since in most cases they are average for various sizes and methods of manufacture and may not be exactly representative of any particular product or size. The data is intended for comparing alloys and tempers and should not be used for design purposes.

Source: Aluminum Standards & Data and United Aluminum data base

Alloy-Temper

Tensile Strength

(ksi)

Yield Strength

(ksi)

Elongation

(%)

7075-O

33

15

16

7075-T6

83

73

11

United Aluminum can supply 7075 in the annealed temper for maximum formability. The formed parts can be subsequently heat treated to higher strength.

 

Although this data has been designed by United Aluminum or taken from sources United Aluminum believes to be reliable, this data needs to be thoroughly evaluated and tested by technically skilled personnel before any use is made thereof. United Aluminum assumes no responsibility or liability for any use of this data, or with respect to the infringement of any patent, and no warranties are give or implied by United Aluminum. This information is not to be copied used in evidence, released for publication or passed to a third party without written permission from United Aluminum.

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