7075-T651
Aluminum Bar
A high-strength aluminum bar for machined components where weight and mechanical performance matter. Specify T651 condition, bar form and inspection requirements for the intended application.
01 / MATERIAL OVERVIEWMaterial Features
7075 is a zinc-based heat-treatable aluminum alloy used for demanding machined parts. This listing is for bar stock; requirements for sheet or plate should not be applied to bar without checking the relevant specification. Compare 6061-T6 aluminum round bar and 6061-T6 aluminum flat bar when a different balance of strength, fabrication and section geometry suits the component.
High-Strength Applications
A candidate for compact, highly loaded components after design verification. Select properties for the actual bar size and direction.
Defined T651 Condition
The condition includes solution treatment, stretching for stress relief and artificial aging. Confirm the exact product designation on the report.
Machining Stock
Suitable for turning, drilling and milling with appropriate tooling and workholding.
Corrosion Planning
Specify suitable protection for exposed and mating surfaces, particularly in damp or aggressive environments.
Limited Cold Forming
The hardened condition has limited forming capacity. Prefer machining or a separately qualified forming route.
Joining Selection
Conventional fusion welding is generally unsuitable. Consider mechanical joining and a qualified design instead.
02 / TECHNICAL DATAMaterial Reference
| Item | Reference / requirement |
|---|---|
| Zinc Zn | 5.1–6.1% |
| Magnesium Mg | 2.1–2.9% |
| Copper Cu | 1.2–2.0% |
| Chromium Cr | 0.18–0.28% |
| Aluminum Al | Balance |
Reference values support material selection. Confirm the complete chemistry, mechanical properties and acceptance criteria in the purchase specification and batch report.
03 / CONDITION & PERFORMANCESpecify the Right Condition
T651 is distinct from T6 and from extrusion designations such as T6511. Mechanical limits depend on the product standard, bar section and test direction. The word aerospace in a product title does not establish approval for a particular aircraft part.
| Requirement | What to confirm |
|---|---|
| Material condition | Exact grade and temper or delivery condition |
| Mechanical properties | Applicable limits for the product form and dimensions |
| Inspection | Test method and required material documentation |
04 / DIMENSIONS & SUPPLYDimensions for Your Application
| Item | Ordering guidance |
|---|---|
| Section | Specify round diameter or rectangular/square section |
| Length | Provide stock or finished length and saw allowance |
| Straightness | State straightness and section tolerances |
| Documentation | Specify temper, test direction and traceability requirements |
Provide dimensions in millimeters and identify whether they refer to incoming stock or finished parts. Available sizes, quantity and lead time are confirmed in the quotation.
05 / APPLICATIONSTypical Applications
Precision Hardware
Machined housings, spacers and fittings with defined inspection requirements.
High-Load Fixtures
Compact tooling components where the selected properties suit the load.
Transport Equipment
Lightweight mechanical parts designed for their service environment.
Automation Parts
Machined supports and mechanisms requiring a favorable strength-to-weight balance.
Aerospace Procurement
Supply only against the required specification, traceability and acceptance documentation.
Custom Blanks
Cut bar lengths prepared for further machining.
06 / FABRICATION & FINISHPlan the Fabrication Route
| Operation | Details to define |
|---|---|
| Turning & milling | Set allowances and cutting conditions around the bar size and finished geometry. |
| Stress control | Use balanced roughing and verify dimensions after unclamping. |
| Protection | Agree on anodizing or other protection with masking for fits and contacts. |
| Joining | Specify bolts, inserts or other qualified joining details on the drawing. |
07 / PACKING & INSPECTIONPacking, Handling & Inspection
Protect the Material
Specify package size and unit weight for your handling equipment. Agree on edge protection, separation between pieces and moisture protection appropriate to the shipment.
Store & Handle Carefully
Store dry and supported. Keep contact surfaces and finished faces free from contamination and handling damage. Preserve labels for batch identification.
Check on Receipt
- Match grade, condition and batch identification to the order.
- Check quantity, dimensions and packaging condition.
- Inspect visible surfaces and edges before fabrication.
- Review the agreed material and inspection documents.
08 / FREQUENTLY ASKED QUESTIONSSelection FAQs
Can I use plate data for this bar?
Not automatically. Use the bar standard and the mechanical limits applicable to its size and condition.
Does T651 eliminate machining distortion?
No. Stretching reduces residual stress, but machining and workholding can still affect dimensions.
Does the name guarantee aerospace approval?
No. The relevant drawing, approved supply requirements and batch documentation govern acceptance.
09 / ORDERING GUIDESend a Complete Specification
Please include: 7075-T651 aluminum bar; section × length; quantity; dimensional tolerances; machining allowance; surface protection; required material and inspection documents.
Specify the applicable bar standard and edition. Aerospace use requires the exact procurement specification and acceptance requirements.
Include a drawing for processed parts and identify any critical dimensions. Final availability, pricing, minimum order quantity and delivery schedule are subject to quotation.
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