7075 Aluminum Round, Flat & Square Bar
Arch Metals supplies 7075 aluminum bar in round, flat and square shapes, plus 7075 plate, from Dallas, Texas, to machine shops and manufacturers across Texas and the surrounding states. 7075 is one of the strongest aluminum alloys in common use. We supply it mainly as 7075-T651 for maximum strength and 7075-T7351 for better stress-corrosion resistance, with certified material and saw cutting to your length. Sizes vary by temper and form, so request a quote and we’ll confirm current availability.
7075 Aluminum Bar and Plate Forms
- Round bar (rolled or cold-finished and extruded)
- Flat bar and rectangle
- Square bar
- Plate, saw cut to size
- Extruded bar and shapes
Thickness, diameter and length availability changes with mill supply. Send us your sizes through our quote request form and we’ll confirm stock, lead time and pricing.
7075 Aluminum Tempers and Specifications
- 7075-T651 bar and plate (ASTM B211 bar, ASTM B209 and AMS 4045 plate): solution heat treated, stress relieved by stretching and artificially aged to peak strength. It is the usual choice when strength matters most.
- 7075-T7351 bar and plate (AMS 4124 bar, AMS 4078 plate): overaged after stretching. It gives up some strength in exchange for much better resistance to stress-corrosion cracking and better dimensional stability when machined.
- 7075-T6511 and T73511 extrusions (ASTM B221): the extruded equivalents of T651 and T7351, stress relieved by stretching with minor straightening allowed.
Not sure which temper or specification your drawing calls for? Send us the print requirements and we’ll match the material.
Typical Properties of 7075-T6 Aluminum
- Ultimate tensile strength: about 83 ksi (572 MPa)
- Yield strength: about 73 ksi (503 MPa)
- Elongation: about 11%
- Brinell hardness: about 150 HB
- Density: 0.101 lb/in³ (2.81 g/cm³)
- Chemistry: aluminum alloyed mainly with zinc, plus magnesium and copper
These are typical values for T6-type tempers. Guaranteed minimums vary by specification, temper and thickness, so check the governing spec or your mill cert for design values.
Why Machinists and Engineers Choose 7075 Aluminum
7075 gives strength close to many steels at about a third of the weight, and it machines cleanly with good chip control. It is not a good candidate for fusion welding, and its corrosion resistance is lower than 6061 aluminum bar, which is the more economical choice when you don’t need the extra strength. For fatigue-critical parts, compare it with 2024 aluminum bar or the thick-plate alloy 7050 aluminum. Common uses for 7075 include:
- Aircraft fittings, brackets and structural parts
- Molds, dies and tooling plates
- High-stress gears, shafts and machined components
- Motorsport, bicycle and sporting equipment parts
- Defense and firearm components
7075 Aluminum FAQs
Is 7075 aluminum stronger than 6061?
Yes. Typical yield strength for 7075-T6 is about 73 ksi, compared with about 40 ksi for 6061-T6, so 7075 is nearly twice as strong. 6061 aluminum bar costs less, welds easily and resists corrosion better, so it is often the better value for general parts.
Can 7075 aluminum be welded?
7075 is generally not recommended for conventional fusion welding because it is prone to hot cracking and loses strength near the weld. Parts are usually joined with mechanical fasteners instead.
Should I choose 7075-T651 or 7075-T7351?
Choose T651 when you need maximum strength. Choose T7351 for parts that will see sustained stress in corrosive environments, or when your drawing calls for stress-corrosion resistance.
Cut-to-Size 7075 Aluminum With Delivery Across Texas
We ship 7075 aluminum bar and plate throughout Texas, Oklahoma, Louisiana, New Mexico and Arizona, and we saw bar and plate to the size you need. See our processing services for cutting options, or browse all the metals we supply.
To get pricing, send us the alloy, temper, form, size, length and quantity through our quote request form, or call (888) 444-6061.