5083 6061 Aluminum Plate Coated Industrial Alloy Aluminium Sheet

5083 aluminum alloy plate is the core grade of Al-Mg series anti-corrosion aluminum alloy, with magnesium as the main alloying element. It combines high strength, excellent corrosion resistance, superior weldability and low-temperature stability. It cannot be strengthened by heat treatment, but its strength can be improved by cold working. Widely used in harsh scenarios such as marine engineering, pressure vessels, transportation and low-temperature equipment, it is the preferred structural material with both lightweight and reliability.

• Grade: 5083 (internationally common); corresponding to Chinese standard GB/T 3190, ASTM B209/ASME SB209.
• Core Characteristics: High magnesium content (Mg≈4.0%–4.9%), synergistic effect of Mn/Cr, excellent seawater corrosion resistance and welding performance.

• Forms: Hot-rolled plate, cold-rolled plate, annealed plate (O temper), semi-hard plate (H111/H116/H321), checkered plate, customized special-shaped plate.
• Specifications: Thickness: 0.5–150mm (customizable up to 200mm+); Width: 500–2500mm; Length: 500–10000mm; Standard sizes: 1000×2000mm, 1220×2440mm, 1500×3000mm.
• Typical Tempers: O (soft temper, easy to form); H111 (general structure); H116/H321 (marine high corrosion resistance, certified by DNV/ABS and other classification societies).

• Weldability: Excellent, suitable for MIG/TIG welding; recommended welding wire: 5183/5356; weld strength can reach 95% of the base metal.
• Formability: O temper is easy to bend, stamp and deep-draw; H116/H321 requires greater forming force; thick plates (≥6mm) are suitable for hot working (150–260℃).
• Surface Treatment: Anodizing, spraying and polishing are available to further improve corrosion resistance and aesthetics.

• Process: High-purity raw material smelting → homogenization treatment → hot rolling/cold rolling → solution treatment/cold working hardening → heat treatment → surface treatment → finishing → inspection → packaging.
• Quality Control: Full-process coverage of spectral composition analysis, tensile/hardness testing, UT/ET non-destructive testing, dimensional and surface quality inspection; EN 10204 3.1 material test certificate can be provided; DNV/ABS and other certifications are available for marine tempers.
• Packaging: Waterproof paper + kraft paper + fumigated wooden box/pallet, suitable for sea, land and air transportation.

• Outstanding Corrosion Resistance: Dense oxide film resists seawater, salt spray, industrial chemicals and intergranular corrosion, superior to 6-series/7-series alloys, and is the first choice for marine scenarios.
• Balanced Strength and Toughness: Leading strength among non-heat-treatable alloys, excellent toughness at low temperatures (-196℃), suitable for low-temperature equipment such as LNG storage tanks.
• Compatible Weldability and Formability: High strength retention rate after welding; O temper is easy to form complex shapes, meeting the needs of integrated manufacturing of structural parts.
• Lightweight and Long Service Life: Density is about 2.65g/cm³ (only 1/3 of steel), service life is 20–30 years, 100% recyclable, green and low-carbon.

• Marine & Offshore Engineering: Ship hulls, decks, liquid tanks, offshore platform structures, marine guide rails.
• Pressure Vessels: Welded storage tanks, transport tanks, chemical reaction kettles, seawater desalination equipment.
• Transportation: Truck compartments, rail vehicle bodies, electric vehicle frames, marine trailer sheet metal.
• Low-Temperature & Special Equipment: LNG storage tanks, cold-chain containers, low-temperature pipelines, explosion-proof armor plates.
• Others: Building curtain walls, photovoltaic brackets, marine hardware, marine engineering rivets.

• Selection Suggestions: Choose H116/H321 for marine high corrosion resistance; H111 for general structures; O temper for complex forming; 5083 is preferred for low-temperature working conditions.
• Delivery Commitment: Provide material certificates, classification society certifications, customized size/surface treatment solutions, quickly respond to inquiries and delivery dates, and support small to large batch supply.