6082 (He30) — Aluminium Grade Specification, Properties & Equivalents

6082 (He30) aluminium alloy is a high-strength, medium-to-high performance aluminium-magnesium-silicon alloy widely utilized across India's industrial landscape. Renowned for its excellent strength-to-weight ratio, good corrosion resistance, and superior mechanical properties, 6082 (He30) is the workhorse for structural applications demanding reliability and durability. Indian manufacturers and fabricators frequently opt for 6082 (He30) in critical infrastructure projects, automotive components, and marine applications where performance under stress is paramount. The alloy's versatility allows it to be easily formed and machined, making it a favoured choice for complex designs and large-scale production runs. Understanding the specific attributes of 6082 (He30) is crucial for procurement teams and engineers to ensure optimal material selection for demanding engineering challenges in India.

Chemical Composition of 6082 (He30)

6082 (He30) Aluminium Alloy Chemical Composition

Mechanical Properties of 6082 (He30)

6082 (He30) Aluminium Alloy Mechanical Properties

6082 (He30) Aluminium Available Forms in India

6082 (He30) Aluminium Real-world Applications

• Structural Engineering: Load-bearing components, bridges, and framework construction in India.
• Automotive Industry: Chassis parts, suspension components, and body panels requiring high strength.
• Marine Applications: Boat hulls, offshore structures, and deck fittings due to good corrosion resistance.
• Aerospace: Secondary structural elements and framework where high strength-to-weight is critical.
• Industrial Machinery: Machine frames, heavy-duty equipment parts, and structural supports.
• Transportation: Trailer chassis, freight car components, and truck bodies.
• Construction: Facades, roofing, and architectural elements requiring robust support.
• General Engineering: Brackets, fixtures, and custom-fabricated parts for diverse industrial needs.

6082 (He30) Aluminium Machinability & Weldability

The machinability of 6082 (He30) is rated as good, making it amenable to various cutting operations in India. For optimal results when machining 6082 (He30) alloy, it is recommended to use high-speed steel or tungsten carbide tooling. Consistent feed rates and appropriate speeds are crucial to prevent overheating and to achieve a good surface finish. Chip breakers are often employed to manage the long, stringy chips typically produced. Lubrication with a soluble oil or mist coolant is advised to maintain tool life and improve the cutting process for 6082 (He30).

When it comes to welding 6082 (He30), it can be welded successfully using Gas Tungsten Arc Welding (GTAW/TIG) or Gas Metal Arc Welding (GMAW/MIG) processes. The most commonly recommended filler alloys for 6082 (He30) are ER5356 or ER5183, which provide beneficial ductility and strength in the weld zone. It is important to ensure thorough cleaning of the joint area to remove any oxides or contaminants before welding 6082 (He30). While 6082 (He30) generally exhibits good corrosion resistance, welds may show slightly reduced resistance compared to the base metal, especially in marine environments. Preheating is typically not required for welding thinner sections of 6082 (He30), but for thicker materials, a mild preheat of around 100-150°C can help prevent cracking. Post-weld heat treatment (PWHT) is generally not performed on 6082 (He30) welds as it can negate the benefits of the alloy

6082 (He30) Aluminium Heat Treatment & Processing

The most common temper for 6082 (He30) aluminium alloy procured in India is T6, which involves solution heat treatment followed by artificial aging. To achieve the T6 temper, 6082 (He30) is first heated to approximately 520°C for a duration determined by the section thickness (typically 10-30 minutes per mm). This process dissolves alloying elements into the aluminium matrix. Rapid quenching in water or polymer solution from this solution temperature, usually quenching from around 150°C, locks these elements in a supersaturated solid solution. This step is critical for the subsequent aging process of 6082 (He30).

Following the quench, artificial aging is performed by heating 6082 (He30) to temperatures between 150°C and 180°C for durations ranging from 4 to 12 hours. This precipitation heat treatment develops the alloy's characteristic high strength by forming fine intermetallic precipitates within the grain structure. Other tempers, such as O (annealed) or T4 (solution heat treated and naturally aged), are also available for 6082 (He30) depending on the fabrication and application requirements. Annealing of 6082 (He30) is done at around 400-420°C for 1-2 hours before slow cooling to relieve stresses and improve ductility.

Sourcing 6082 (He30) Aluminium in India

Major Indian producers like Hindalco, Nalco, and various small-to-medium enterprises (SMEs) manufacture or process 6082 (He30) aluminium. Availability is generally good across industrial hubs, with significant stock often found in Mumbai, Pune, and Chennai. Minimum Order Quantities (MOQs) can vary; for standard profiles and bars, MOQs might range from 500 kg to 2000 kg, while for custom extrusions or plates, they can be higher. The indicative price band for 6082 (He30) in India typically falls between INR 250/kg to INR 350/kg, subject to market fluctuations, order volume, and specific product form. Buyers should expect to receive Mill Test Certificates (MTC) with every supply of 6082 (He30), detailing the chemical composition and mechanical properties as per the specified standard (e.g., IS 733 or ASTM B221). Traceability and adherence to standards are paramount when procuring 6082 (He30) from reputable Indian suppliers.

6082 (He30) Aluminium International Equivalents

FAQs about 6082 (He30)