7050 Aluminium Plate
7050 aluminium plate is a high-strength, heat-treatable 7xxx-series alloy developed for demanding structural applications. Its zinc-magnesium-copper alloy system combines high strength with fracture toughness and resistance to stress-corrosion cracking. It is commonly selected for thick aerospace plate and heavily machined structural parts.
For a quotation, specify the required temper, governing standard, dimensions, quantity, inspection requirements and any cutting or surface-protection needs. Available sizes and services should be confirmed for each order.
7050 Aluminium Plate Specifications
| Alloy | 7050 / UNS A97050 |
|---|---|
| Product form | Aluminium plate |
| Common plate tempers | T7451 and T7651; confirm the required temper and availability when enquiring |
| Commonly referenced specifications | ASTM B209/B209M; AMS 4050 for 7050-T7451 plate; AMS 4201 for 7050-T7651 plate. The purchase order should identify the required revision and acceptance criteria. |
| Dimensions and quantity | Supplied to confirmed order requirements; request current availability |
7050-T7451 vs 7050-T7651
| Temper | Specification reference | Selection consideration |
|---|---|---|
| 7050-T7451 | AMS 4050 | Stress-relieved, overaged plate widely specified where strength, toughness and stress-corrosion-cracking resistance must be balanced. |
| 7050-T7651 | AMS 4201 | Stress-relieved, overaged plate used when the applicable design or procurement specification calls for this temper. Do not substitute tempers without engineering approval. |
Mechanical-property requirements depend on temper, thickness, test direction and the governing specification. Values from different product forms or thickness ranges should not be treated as interchangeable.
7050 Aluminium Chemical Composition
| Element | Composition, wt.% |
|---|---|
| Silicon (Si) | 0.12 max |
| Iron (Fe) | 0.15 max |
| Copper (Cu) | 2.0-2.6 |
| Manganese (Mn) | 0.10 max |
| Magnesium (Mg) | 1.9-2.6 |
| Chromium (Cr) | 0.04 max |
| Zinc (Zn) | 5.7-6.7 |
| Titanium (Ti) | 0.06 max |
| Zirconium (Zr) | 0.08-0.15 |
| Other elements | 0.05 max each; 0.15 max total |
| Aluminium (Al) | Remainder |
Composition limits follow the Aluminum Association registered wrought-alloy designation for 7050. Final acceptance must follow the standard or customer specification stated on the order.
Key Characteristics
- High strength for weight-sensitive structural components
- Good fracture-toughness characteristics for thick plate applications
- Stress-corrosion-cracking resistance suited to appropriately specified aerospace tempers
- Suitable for machined structural parts where temper, grain direction and section thickness are controlled by the design
Typical Applications
7050 aluminium plate is primarily associated with aerospace structural applications such as bulkheads, fuselage frames, wing structures and other highly loaded machined components. Suitability for a specific part must be determined from the applicable engineering drawing, service environment and material specification.
For related grades, review our 7000 series aluminium sheet and plate range and 7075 aluminium plate.
Information to Include with Your RFQ
- Alloy and temper, for example 7050-T7451 or 7050-T7651
- Required specification and revision
- Thickness, width, length and quantity
- Required test reports, inspection or ultrasonic-testing criteria
- Cut-to-size, machining or protective-film requirements
- Delivery destination and requested schedule
Send your complete requirement to SASA Aluminium for an availability and quotation review.
