Aluminium Alloy 1100: Commercial purity aluminium.
Commercially pure aluminium with excellent corrosion resistance, formability and thermal conductivity. The benchmark for chemical, food and decorative applications.
What is Aluminium Alloy 1100?
Aluminium Alloy 1100 is the most widely used commercially pure aluminium grade, containing a minimum of 99.0 % aluminium. With virtually no alloying additions, 1100 delivers the best corrosion resistance, the best workability and the highest thermal and electrical conductivity of the wrought aluminium family, at the trade-off of comparatively low mechanical strength. It is the alloy of choice wherever appearance, formability or chemical resistance matter more than load-bearing capacity.
1100 cold-forms, spins and deep-draws exceptionally well. It is readily welded by all common methods (TIG, MIG, resistance and gas) and anodises to a clear, even finish. Machining requires sharp tooling and generous cutting fluid because the alloy is soft and gummy.
Chemical & mechanical data.
Chemical composition
Mechanical properties
How 1100 performs.
Six performance dimensions, rated 1 to 5, to help architects, fabricators and engineers specify with confidence.
Where 1100 is specified.
- Chemical handling equipment
- Food & beverage processing
- Decorative architectural cladding
- Stucco embossed sheets
- Sign & nameplate manufacture
- Deep-drawn cookware and containers
- Heat exchanger fins
Advantages
- Excellent corrosion resistance
- Outstanding formability and deep-drawing
- High thermal & electrical conductivity
- Easy to weld and anodise
- Food-grade and architecturally clean
Limitations
- Low mechanical strength; not for load-bearing structures
- Poor machinability (gummy) compared to 2xxx / 6xxx alloys
1100 is supplied to:
- ASTM B209
- EN 485-2
- EN 573-3
- JIS H4000
Supplied to customer requirement.
Alloy 1100 is available in a full range of thicknesses according to customer requirement, with cut-to-length, slitting and custom configuration on request. Mill test certificates (EN 10204 3.1) are issued with every consignment.
Related aluminium alloys.
Manganese alloy: general purpose
The workhorse aluminium alloy. Approximately 20 % stronger than 1100 with the same excellent formability, specified for cladding, roofing, ducting and general sheet-metal fabrication.
Architectural anodising alloy
A low-magnesium 5xxx alloy specifically formulated for bright, even anodising. The benchmark sheet for architectural cladding and decorative trim.
Send your 1100 requirement.
Tell us form (sheet / coil / plate / bar), temper, dimensions and tonnage. We will revert with mill availability and indicative pricing within one working day.