7075 T73 aluminum is 7075 aluminum alloy that has been treated to the T73 condition. The T73 condition is achieved through solution heat treatment and artificial overaging.
7075 T73 aluminum is the 7075 aluminum in the T73 condition. To reach this condition, the metal undergoes solution heat treatment and is then stabilized through artificial overaging. The degree of overaging is selected to maximize stress corrosion resistance.
Stress Corrosion Resistance: Optimized through overaging treatment to improve stress corrosion resistance.
Applications: 7075 T73 aluminum plate sheet is suitable for high-strength applications in aerospace and structural components.
Stress Corrosion Resistance: Further improved through stress relief and overaging treatments.
Applications: 7075 T7351 aluminum plate sheet is used in structural and aerospace fields where high strength and corrosion resistance are required.
7075 T73511 aluminum is 7075 aluminum alloy treated to the T73511 condition. The T73511 condition is achieved through solution heat treatment, stress relief, and artificial overaging.
Stress Corrosion Resistance: Optimized through overaging treatment, suitable for applications with high demands on stress corrosion resistance.
Applications: 7075 T73511 aluminum plate sheet is used for structural components and high-strength applications requiring precise mechanical properties.
| Alloy | Si | Fe | Cu | Mn | Mg | Cr | Zn | Zr | Ti | Standard |
| 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 | GB/AMS/EN |
| Alloy | Type | Temper | Thickness(mm) | Width(mm) |
| 7075 | Thick plate | T651/T7651/T7351/T73/T73511 | 4-260 | 1200-3800 |
| Thin plate | T651/T7651/T7351/T73/T73511 | 0.5-4.0 | 1000-2600 |
| Alloy | Temper | Direction | Thickness(mm) | Tensile strength(mm) | Yield strength | Breaking elongation | Standard |
| RM(Mpa) | RP0.2(Mpa) | A50% | |||||
| 7075 Thick Plate | T651 | LT | 6-260 | 570-590 | 495-515 | 10-13.5 | GB/T3380 |
| T7651 | LT | 6-102 | 550-560 | 480-490 | 10.5-12.5 | AMS4045K | |
| T7351 | LT | 6-102 | 500-520 | 420-435 | 10-12.5 | AMS4078 | |
| 7075 Thin Plate | T6 | - | 0.5-3.5 | 550-570 | 480-500 | 11-15 | GB/T3880 |
| EN485 | |||||||
| ASTM B209 |
The differences between 7075 T73, 7075 T7351, and 7075 T73511 aluminum alloys primarily lie in their heat treatment processes and the resulting properties.
| Aluminum Alloy Condition | Heat Treatment | Characteristics | Applications |
| 7075 T73 | Solution Heat Treatment: Heating the alloy to dissolve soluble elements. Artificial Aging: Performed to stabilize the alloy and enhance stress corrosion resistance. | Stress Corrosion Resistance: Optimized for high stress corrosion cracking resistance. | Commonly used in aerospace and structural components requiring high strength and good stress corrosion resistance. |
| 7075 T7351 | Solution Heat Treatment: Similar to T73. Stress Relief: Stretching the metal to release internal stresses, with the amount of stretching depending on the product type (sheet, plate, bar, or forging). Artificial Aging: Performed after stress relief to enhance performance. | Stress Corrosion Resistance: Further improved through stress relief and customized aging. | Suitable for high-strength structural and aerospace applications, with enhanced stress corrosion resistance and mechanical properties. |
| 7075 T73511 | Solution Heat Treatment: Same as T73 and T7351. Stress Relief: Similar to T7351 but typically specific to extrusions or tubing. Artificial Overaging: Extended aging process to achieve optimal stress corrosion resistance. Straightening: After stretching, the metal is straightened, which is a key difference from T73510 where straightening is not allowed. | Stress Corrosion Resistance: Maximized through overaging and specific post-stretching treatments. | Very suitable for high-strength structural applications requiring precise mechanical properties and enhanced stress corrosion resistance. |
What is the difference between 7075 T6 and 7075 T73?
Difference between 7075-T6 and 7075-T73: 7075-T6 is heat treated to the T6 temper for high strength and hardness, while 7075-T73 is treated to the T73 temper for improved stress corrosion resistance but lower strength.
What is the difference between 7075 T6 and 7075 T7?
Difference between 7075-T6 and 7075-T7: 7075-T6 has higher strength and hardness, whereas 7075-T7 is a less common designation, generally referring to variations like T7351 or T73511, which are specifically treated for improved stress corrosion resistance.
Is 7075 aluminum as strong as steel?
7075 aluminum is strong and comparable to some steels in terms of tensile strength, but steel typically has higher strength and durability overall.
| Product | Temper | Thickness/in | Size/in |
| Aluminum Sheet 7075-T73 | T73 | 0.025" | 4" x 12" |
| ASTM B209 Aluminum Sheet 7075-T73 | T73 | 0.032" | 6" x 120" |
| Aluminum Sheet 7075-T73 | T73 | 0.032" | 36" x 60" |
| ASTM B209 Aluminum Sheet 7075-T73 | T73 | 0.04" | 4" x 72" |
| ASTM B209 Aluminum Sheet 7075-T73 | T73 | 0.05" | 4" x 96" |
| Aluminum Sheet 7075-T73 | T73 | 0.063" | 48" x 96" |
| ASTM B209 Aluminum Sheet 7075-T73 | T73 | 0.071" | 24" x 60" |
| ASTM B209 Aluminum Sheet 7075-T73 | T73 | 0.08" | 4" x 60" |
| Aluminum Sheet 7075-T73 | T73 | 0.09" | 24" x 36" |
| Aluminum Sheet 7075-T73 | T73 | 0.125" | 24" x 48" |
| ASTM B209 Aluminum Sheet 7075-T73 | T73 | 0.19" | 48" x 48" |
| ASTM B209 Aluminum Plate 7075-T7351 | T7351 | 0.25" | 36" x 96" |
| ASTM B209 Aluminum Plate 7075-T7351 | T7351 | 0.375" | 24" x 96" |
| ASTM B209 Aluminum Plate 7075-T7351 | T7351 | 0.5" | 36" x 60" |
| ASTM B209 Aluminum Plate 7075-T7351 | T7351 | 0.5" | 24" x 72" |
| ASTM B209 Aluminum Plate 7075-T7351 | T7351 | 0.625" | 18" x 96" |
| ASTM B209 Aluminum Plate 7075-T7351 | T7351 | 0.75" | 18" x 72" |
| ASTM B209 Aluminum Plate 7075-T7351 | T7351 | 1" | 18" x 120" |
| ASTM B209 Aluminum Plate 7075-T7351 | T7351 | 1.25" | 18" x 60" |
| ASTM B209 Aluminum Plate 7075-T7351 | T7351 | 1.5" | 12" x 120" |
| ASTM B209 Aluminum Plate 7075-T7351 | T7351 | 1.75" | 12" x 96" |
| ASTM B209 Aluminum Plate 7075-T7351 | T7351 | 2" | 12" x 72" |
| ASTM B209 Aluminum Plate 7075-T7351 | T7351 | 2" | 12" x 60" |
| ASTM B209 Aluminum Plate 7075-T7351 | T7351 | 2.25" | 12" x 24" |
| ASTM B209 Aluminum Plate 7075-T7351 | T7351 | 2.5" | 10" x 96" |
| ASTM B209 Aluminum Plate 7075-T7351 | T7351 | 2.75" | 10" x 120" |
| ASTM B209 Aluminum Plate 7075-T7351 | T7351 | 3" | 10" x 60" |
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