1100 — Aluminium Grade Specification, Properties & Equivalents

Aluminium 1100, a commercially pure aluminium grade, is widely recognized in India for its exceptional corrosion resistance, low density, and excellent thermal and electrical conductivity. This non-heat-treatable alloy, primarily composed of aluminium with a minimum of 99.0% purity, is a favoured choice for applications demanding formability and a bright, polished surface finish. In India, fabricators and manufacturers across the automotive, electrical, and packaging sectors rely on Aluminium 1100 for its ease of fabrication and its ability to withstand diverse environmental conditions. Its inert nature makes it particularly suitable for food contact and chemical processing equipment. The widespread availability and cost-effectiveness of Aluminium 1100 further solidify its position as a go-to material for numerous industrial needs across the Indian subcontinent, from heat exchangers to decorative trim. MetaleMart provides comprehensive details on 1100 Aluminium, connecting buyers with reliable Indian suppliers.

Chemical Composition of 1100

1XXX Series Aluminium 1100 Chemical Composition

Mechanical Properties of 1100

1100 Aluminium Mechanical Properties (Typical)

1100 Aluminium Available Forms in India

1100 Aluminium Real-world Applications

• Electrical Industry: Busbars, cable sheathing, transformer foils
• Packaging: Food containers, caps, decorative foils
• Chemical Industry: Tanks, stills, piping for corrosive substances
• Heat Exchangers: Radiators, condensers due to thermal conductivity
• Architectural: Decorative trim, anodized components, nameplates
• Automotive: Fuel tanks, heat shields, decorative elements
• Cookware: Pots, pans (often with coatings)
• General Fabrication: Stamped parts, spun components, signage

1100 Aluminium Machinability & Weldability

The machinability of 1100 Aluminium is considered fair, owing to its pure, soft, and ductile nature. It tends to produce long, stringy chips, which can be challenging for high-speed machining operations. For optimal results with 1100 Aluminium, it is recommended to use high positive rake angles on cutting tools, generous coolant flow, and slower cutting speeds. Tools should be kept sharp to prevent tearing and ensure a smooth finish. Avoid excessive feed rates to prevent chip clogging. Common tool materials like High-Speed Steel (HSS) or carbide inserts are suitable.

Weldability for 1100 Aluminium is excellent, making it a preferred choice for joining applications. Both Gas Tungsten Arc Welding (GTAW/TIG) and Gas Metal Arc Welding (GMAW/MIG) can be used effectively. Filler materials like 1100 or 4043 are typically employed. Due to its low melting point and high thermal conductivity, preheating is generally not required, but careful heat control is essential to prevent warping and burn-through. Cleaning the weld area thoroughly before commencing is critical. Post-weld heat treatment is not typically performed on 1100 Aluminium as it is a non-heat-treatable alloy, and any strength gains from welding are minimal and primarily due to work hardening only.

1100 Aluminium Heat Treatment & Processing

Aluminium 1100 is a non-heat-treatable alloy, meaning its mechanical properties cannot be significantly enhanced through heat treatment processes like quenching and tempering. Its strength is primarily derived from cold working (strain hardening). Annealing is the principal thermal process applied to 1100 Aluminium, used to soften the material after cold working, restore ductility, and relieve stresses. For full annealing, 1100 Aluminium is typically heated to a temperature range of 340-410°C, held for one to two hours, and then furnace-cooled. This process lowers the tensile and yield strength while significantly increasing elongation. Normalizing is not applicable to 1100 Aluminium. Solution heat treatment and artificial aging are not performed to increase strength. Any processing of 1100 Aluminium focuses on maintaining its inherent ductility and formability, or softening it for further deformation. Careful control during fabrication, such as bending or stamping, is crucial to avoid excessive work hardening that could lead to cracking, especially in intricate designs.

Sourcing 1100 Aluminium in India

1100 Aluminium is readily available across India from major producers like Hindalco, National Aluminium Company (NALCO), and various smaller rolling mills. Key industrial hubs such as Mumbai, Pune, Chennai, and Ahmedabad maintain substantial stock for immediate sourcing. Material is typically available in standard forms like sheets, coils, and foils, with MOQ (Minimum Order Quantity) varying from a few kilograms for smaller fabricators to several tonnes for large industrial orders. The price band for 1100 Aluminium typically ranges from ₹180 to ₹240 per kilogram, depending on prevailing market rates, order volume, and specific form. Buyers should expect to receive a Material Test Certificate (MTC) as per IS standards (e.g., IS 733) with every order, detailing the chemical composition and mechanical properties of the supplied 1100 Aluminium. Third-party inspection can also be arranged upon request.

1100 Aluminium International Equivalents

FAQs about 1100