Aluminum: Alloys, Properties & Supply

Short answer: Aluminum (density 2.70 g/cm3) is the lightest structural metal in common use, with excellent corrosion resistance, high formability, and good electrical and thermal conductivity. HXSCO supplies aluminum in sheet, plate, coil, bar, rod, profile, wire, and custom-extruded forms across the 1000 to 7000 series, with mill-test certificates for marine, transport, architecture, and industrial applications.

At a Glance

Aluminum alloy series chart
Figure 1 – Aluminum alloy series, key alloys, properties, and typical use.

Why Specify Aluminum?

Aluminum’s low density, natural oxide protection, and easy fabrication make it the default for weight-sensitive designs. It does not rust, is non-magnetic, and reflects heat and light. The trade-off is lower strength than steel – so alloy and temper selection is what turns aluminum into a structural material.

Alloy Series at a Glance

The chart groups the families buyers specify most. 1xxx is pure, conductive, and soft; 3xxx adds work-hardening for roofing and siding; 5xxx (magnesium) is the marine workhorse; 6xxx (Mg+Si) extrudes and age-hardens for structural and architectural use; 7xxx (zinc) delivers the highest strength for aerospace and transport.

Supply Forms and Tempers

  • Sheet & plate: 0.2-200 mm for panels, hulls, and machined parts.
  • Coil: for continuous roll-forming and roofing.
  • Extruded profile: custom cross-sections for frames and heat sinks.
  • Bar, rod & wire: for machining, fasteners, and conductors.

Typical Applications

Aluminum serves marine vessels and superstructures, truck and rail bodies, building facades and window systems, heat exchangers, electrical busbars, and consumer and aerospace parts. Where weight, corrosion, or conductivity drive the design, aluminum leads.

Sourcing Aluminum from HXSCO

HXSCO stocks and sources aluminum in every common series and form. Tell us the alloy, temper, dimensions, and quantity, and we will quote with full mill-test certification and the delivery schedule your project needs.

Frequently Asked Questions

What are the main aluminum alloy series?

1xxx (pure), 3xxx (work-hardening), 5xxx (marine magnesium), 6xxx (structural, age-hardening), and 7xxx (high-strength zinc) – chosen by strength, corrosion, and formability needs.

What is the density of aluminum?

About 2.70 g/cm3 – roughly one-third of steel’s density – which is why aluminum is specified wherever weight savings matter.

Is aluminum corrosion resistant?

Yes. Aluminum forms a stable oxide film that protects it from rust; 5xxx alloys are especially suited to seawater and marine service.

Which aluminum alloy is strongest?

7xxx-series alloys such as 7075 are the strongest common aluminum alloys, used in aerospace and high-performance transport.

What forms does HXSCO supply aluminum in?

Sheet, plate, coil, extruded profile, bar, rod, and wire across the 1000-7000 series, with mill-test certificates on request.

Ready to source Aluminum from HXSCO?

Send us the grade, form, dimensions, quantity, and any certification or test requirements. HXSCO replies with a competitive quote, lead time, and mill-test options.

Request a Quote