Alloy Comparison · Updated September 15, 2026
7075 vs 7050 Aluminum
Both are high-strength aerospace alloys. Compare the exact temper, plate thickness and specification: 7050 is useful in thick sections, but thickness alone does not decide which alloy to order.
Side-by-Side Comparison
| Property | 7075-T651 | 7050-T7451 |
|---|---|---|
| Selection focus | High strength in T651 | Strength, toughness and thick-section performance |
| Mechanical property minima | Depend on thickness and test direction | Depend on thickness and test direction |
| Alternative plate temper | T7351: overaged | T7651: different strength/corrosion balance |
| Compared plate temper | T651 | T7451 |
| Plate specification | AMS-QQ-A-250/12 | AMS 4050 |
| Conventional arc welding | Generally not recommended | Generally not recommended |
| Order comparison | Match dimensions, quantity and certification | Match dimensions, quantity and certification |
Why 7050 Was Developed
Plate thickness affects cooling during quenching and can affect properties through the section. 7050 has lower quench sensitivity than many other high-strength aluminum alloys, making it useful for thick aerospace plate.
A comparison must still use the required temper and product form. 7075-T651 and 7075-T7351 are different conditions; treating every 7075 plate as T651 hides an important strength-versus-corrosion tradeoff.
7050-T7451 and T7651 are both overaged, stress-relieved plate tempers. The drawing must identify which is required. The manufacturer data and SAE specification links below distinguish them.
Decision Framework
Start with the drawing: alloy, temper, plate specification, required dimensions and grain direction. Do not substitute an alloy or temper based on a strength summary or a price comparison.
For a new design, evaluate the relevant strength, fracture-toughness, corrosion and fatigue requirements using approved material data. There is no universal three-inch cutoff that automatically makes 7050 the correct choice.
Once the material is specified, compare current quotes for the same dimensions, quantity, certification and delivery destination. Use the alloy pages below to check ordering options and request the documentation your purchase requires.
Common Questions
What is the difference between 7075 and 7050 aluminum?
Both are high-strength 7xxx aluminum alloys. 7050 has lower quench sensitivity, which is useful in thick plate. Compare the specified tempers: 7075-T651 prioritizes strength, while overaged tempers such as 7075-T7351 and 7050-T7451 offer a different balance of strength and stress-corrosion resistance.
When should I specify 7050 instead of 7075?
Use the alloy and temper required by the drawing and governing specification. Thickness alone does not determine the alloy. For a new design, compare strength, toughness, stress-corrosion behavior, grain direction and manufacturing requirements before selecting 7050 or 7075.
Is 7050 stronger than 7075?
There is no single strength value for either alloy. Temper, plate thickness, test direction and specification matter. Compare the applicable property requirements for the actual plate rather than treating a typical handbook value as a guaranteed minimum.
What specification covers 7050 plate?
AMS 4050 covers 7050-T7451 plate; AMS 4201 covers 7050-T7651 plate. These are different tempers and are not interchangeable. Specify the required revision, thickness and certifications when ordering.
Sources and specifications
7075 Aluminum Plate
Sizes, tempers and prices
7050 Aluminum Plate
T7451 sizes and prices
6061 vs 7075
Strength vs weldability comparison
Get a Quote
Ready to order?
Order 7075 or 7050 plate cut to size from Nox Metals in Ferndale, Michigan. Mill certifications are included. Select the temper and certification requirements for your order and check the current price and lead time.