Aluminum Alloy – 7075 is a a cold finished aluminum wrought product, has the highest strength of all aluminum screw machine alloys. The -T6 and -T651 tempers have a typical tensile strength of 83 ksi, which is higher than many mild steels.

Due to its very high strength, aluminum alloy 7075 is used for highly stressed structural parts. Applications include aircraft fittings, gears and shafts, fuse parts, meter shafts and gears, missile parts, regulating valve parts, worm gears, keys, and various other commercial aircraft, aerospace and defense equipment. Rod and bar product forms can be machined on multi-spindle and CNC machining equipment.

Corrosion:

Aluminium Alloy 7075 has moderate corrosion resistance. The over aged -T73 and -T7351 tempers offer good stress-corrosion cracking resistance as compared to the -T6 and -T651 tempers. (Caution: direct contact by dissimilar metals can cause galvanic corrosion.)

Anodizing:

The anodizing response rating for aluminum alloy 7075 is good using commercially available methods. The alloy can be both hard and clear-coat anodized. The properties listed in this Alloy Data Sheet represent the best current information for this alloy. In each specific application, the user is expected to evaluate and test the alloy, temper and finishing method. Consult the Material Safety Data Sheet (MSDS) for proper safety and handling precautions when using alloy 7075.

Machining:

Alloy 7075 offers good machinability when machined using single-point or multi-spindle carbide tools on screw machines. The use of a chip breaker is recommended. The alloy is rated “B” on the Aluminum Association machinability rating system, giving curled or easily broken chips with good to excellent surface finish.

Aluminum Alloy 7075 – Temper Designations and Definitions:

Standard Tempers	Standard Temper Definitions
T6, T651	Solution heat-treated and then artificially aged. Applies to products that are not cold worked after solution heat treatment, or in which the effect of cold work in flattening or straightening may not be recognized in mechanical properties. Temper -T651 applies to products that are stress-relieved by stretching.
T73, T7351	Solution heat-treated and over aged/stabilized. Applies to wrought products that are artificially aged after solution heat-treatment to carry them beyond a point of maximum strength to provide control of some significant characteristic other than mechanical properties. Applies to cast products that are artificially aged after solution heat-treatment to provide dimensional and strength stability.

SPECIFICATIONS :

AMS 4044	ASTM B210	MIL A-12545	QQ A-367
AMS 4045	ASTM B211	MIL A-22771	QQ A-430
AMS 4049	ASTM B221	MIL F-18280	QQ WW-T-700/7
AMS 4131	ASTM B241	MIL F-5509	SAE J454
AMS 4147	ASTM B247	QQ A-200/11	UNS A97075
AMS 4154	ASTM B316	QQ A-200/15	QQ A-250/24
AMS 4323	ASTM B468	QQ A-225/9	QQ A-250/13
ASTM B209	DMS 2233

CHEMISTRY DATA :

Aluminum	Balance
Chromium	0.18 - 0.28
Copper	1.2 - 2
Iron	0.5 max
Magnesium	2.1 - 2.9
Manganese	0.3 max
Remainder Each	0.05 max
Remainder Total	0.15 max
Silicon	0.4 max
Titanium	0.2 max
Zinc	5.1 - 6.1

GENERAL INFORMATION :

• Principal Design Features
  The 7075 alloy is capable of high strength as developed by heat treating. It also has excellent properties at low temperatures.
  
  
• Applications
  Commonly used in the manufacture of aircraft and other aerospace applications not requiring the corrosion resistance of Clad 7075.
  
  
• Other Physical Props
  Electrical conductivity 36% of copper.
  
  
• Other Mechanical Props
  Shear strength in O condition is 22 KSI and for the T6 condition it is 48 KSI.
  
  
• Forms & shapes
  Wire, Sheet, Plate, Strip, Round Bars, Hexagonal, Flats, Square, Angle, Channel, Blanks, Tubes, Billets, Pipes, Pipe Fittings, Forging Rings, Special Shape Forgings, Fasteners Etc.