7053 Aluminum Alloy

7053 aluminum is a high-strength 7xxx series alloy with high zinc and copper content, developed for demanding structural use where strength and durability matter. It offers tensile levels above many common aerospace grades and is specified for aircraft structures and heavy-duty components that must hold up under sustained stress. Linsy supplies 7053 in plate, tube, bar, and wire with mill test certificates on every order.

Available forms: plate, tube, bar / rod, wire
Common tempers: T7451, T77, T7751
Processing support: CNC machining, laser cutting, TIG/MIG welding, anodizing, polishing, powder coating
Quality documents: MTC report with every order

What Is 7053 Aluminum?

7053 aluminum is a high-strength 7xxx series alloy with high zinc and copper content, developed for demanding structural use where strength and durability matter. It offers tensile levels above many common aerospace grades and is specified for aircraft structures and heavy-duty components that must hold up under sustained stress. Linsy supplies 7053 in plate, tube, bar, and wire with mill test certificates on every order.

Available 7053 Aluminum Products

Plate

Available tempers: T7451

Temper Thickness (mm) Width (mm) Length (mm)
T7451 0.5 – 200 500 – 2600 500 – 16000 (cut-to-length)

Tube

Available tempers: T7451

Temper Outer Diameter (mm) Wall (mm) Length (mm)
T7451 6 – 300 0.5 – 40 500 – 12000

Bar / Rod

Available tempers: T7451

Temper Diameter (mm) Length (mm)
T7451 3 – 300 500 – 12000

Wire

Available tempers: T77, T7751

Diameter (mm) Coil weight Tolerance
0.8 – 30 Min 50 kg ± 0.02 mm

Specifications & Equivalent Designations

7053 aluminum (EN AW-7053, AlZn6.5Mg1.3Cu) is supplied to common wrought-alloy specifications. Typical standards by form: ASTM B209 (sheet and plate), ASTM B221 (extruded tube, bar, and profiles), ASTM B211 (bar and rod), ASTM B247 (forging stock), and ASTM B313 (welded tube). Always confirm the exact specification and temper with our team for your order.

Chemical Composition

Element Percentage (%)
Si 0.15 max
Fe 0.15 max
Cu 2.0 – 2.6
Mn 0.30 max
Mg 1.9 – 2.6
Cr 0.10 max
Zn 5.6 – 6.7
Ti 0.10 max
Zr 0.08 – 0.15
Others (each) 0.05
Others (total) 0.15
Al Balance

Mechanical Properties by Temper

Temper Tensile Strength (MPa) Yield Strength (MPa) Elongation (%) Shear Strength (MPa)
T7451 550 – 580 480 – 510 10 – 12 150 – 340
T77 / T7751 550 – 580 480 – 510 10 – 12 150 – 340

Values are typical for the overaged T7451 / T7751 tempers. The wide shear range in the source should be confirmed with the mill certificate.

Temper Selection Guide

  • T7451 — Overaged plate; strong and corrosion-resistant for structures.
  • T77 / T7751 — Overaged tempers for wire and extrusions with maximum stress-corrosion resistance.

Key Characteristics

Very high strength

Tensile above many common aerospace alloys.

Good stress-corrosion resistance

Overaged tempers suit demanding service.

Heat-treatable

Precipitation hardened to specification.

Poor weldability

Supplied as machined or formed parts.

Applications

  • Aircraft structures
  • Heavy-duty frames and links
  • Defense components
  • High-strength machined parts
  • Tooling and fixtures

Processing & Surface Finish Notes

Linsy machines and laser-cuts 7053 and applies anodizing or painting for corrosion protection. Welding is not recommended.

Quality Documents & Inspection

Linsy is a Shenzhen-based aluminum supplier with more than 20 years of experience. Our quality system is certified to ISO 9001, ISO 14001, and ISO 45001. Every order ships with a mill test certificate (MTC). SGS third-party test reports are available on request. Typical custom lead time is 10–60 days depending on temper, size, and quantity.

Why Choose Linsy for 7053 Aluminum

  • Shenzhen factory with 20+ years serving aerospace, automotive, and general engineering buyers
  • Wide form range: sheet, plate, coil, tube, bar, wire, profile, and forging stock
  • CNC machining, laser cutting, TIG/MIG welding, and anodizing / polishing / powder coating under one roof
  • Mill test certificate with every order; SGS reports on request
  • ISO 9001 / ISO 14001 / ISO 45001 certified operations

Related Resources

For deeper reading on 7xxx selection and fabrication, see our guides on aluminum alloy selection, welding 7000-series alloys, and aircraft-grade tempers. (Internal links to be connected to published Linsy blog articles.)

7053 Aluminum FAQ

What is 7053 used for?

Aircraft and heavy-duty structural parts where strength above common grades is required.

Which tempers are available?

Plate in T7451; wire and extrusions in T77 / T7751 overaged tempers.

Is 7053 weldable?

No, it is a machined-part alloy rather than a welding grade.

What documents come with the order?

Every order ships with an MTC, and SGS third-party test reports are available on request.

General Ordering FAQ

What is the typical lead time?

Custom aluminum orders typically ship in 10–60 days depending on alloy, temper, size, and quantity. Stock or standard sizes may be faster — ask our team.

Can I get a mill test certificate?

Yes. Every order includes an MTC. SGS third-party test reports are available on request.

Do you offer machining and finishing?

Yes. We provide CNC machining, laser cutting, welding, anodizing, polishing, and powder coating so parts can be delivered closer to finished form.

How do I request a quote?

Send your alloy, temper, dimensions, quantity, and required standard. Our team will confirm availability, lead time, and pricing.

Production Equipments

Certifications

Warehouse and Stock

Order Process

Linsy Advantages

Linsy Aluminum is a leading supplier of aluminum processing products, serving diverse industries including aerospace, general engineering, automotive, marine, shipbuilding and other specialized industrial applications.

We are committed to maintaining the highest standards of quality and environmental responsibility, as demonstrated by our certifications: ISO 9001:2008, ISO 14001:2004 and SGS.

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