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5083 H321 marine grade  aluminum plate belongs to Al-Mg alloy, It is commonly used in ship decks, engine pedestals, ship sides, ship bottom outer plates and other parts. It is the preferred material for high-end ships such as cruise ships, LNG ships, and high-speed boats

Aluminum plates are widely used in various industries due to their excellent properties such as lightweight, corrosion resistance, and good mechanical performance.

Among them, 5083 aluminum plates are popular in many fields, and 5083 H321 and 5083 H112 are two common tempers of 5083 aluminum plates, each with its own unique characteristics.

5083 H321 aluminum plate belongs to the 5000 – series aluminum alloys, which are aluminum – magnesium alloys. 5083 H321 aluminum plate has high strength ranges from 310-380Mpa and the yield strength is about 220 – 290 MPa. Its elongation is around 10% – 15%. These properties make 5083 H321 aluminum plate suitable for applications that require a certain degree of strength and formability.

5083 H321 aluminum plate has good weldability that is suitable for fabrication of ship hulls, deck plates, offshore oil and gas equipment, and pressure vessels that require high strength and corrosion resistance.

5083 H112 has lower strength comparing with 5083 h321, but it has better ductility, with an elongation of approximately 15% – 25%, which makes it easier to be formed into various shapes through processes such as bending, stamping, and rolling.

Typical applications of 5083 H112 алюминиевая пластина include the production of storage tanks, chemical equipment, automotive parts, and structural components that do not require extremely high strength but need good formability.

Сплав5083
ХарактерH112, H116, H321
Толщина3-50mm
Ширина1000-2650mm
Длина2000-12000mm
Standard Sizes2000*6000mm; 2000*8000mm; 1500*3000mm;
ПоверхностьSmooth, Bright, Polished, Blue PVC Film or Paper Interlayer

Mechanical Property of 5083  Aluminum

СплавХарактерThickness mmTensile Strength RmMPaSpecified non-proportional tensile strength Rp0.2 MpaElongation%
A50 mmА
5083H1163.00-50.00≥305≥215≥10≥10
H3213.00-50.00305-385≥215≥12≥10
H1126.00-50.00≥275≥125≥12≥10
Anti-corrosion peeling performanceplate sheets in the state of H116 and H321 shall not have Class E exfoliation corrosion after exfoliation corrosion test; when the contract is marked as “used for sea-going hull shell” or “long-term direct contact with seawater”, PB shall not appear after exfoliation corrosion test Exfoliation corrosion. Exfoliation corrosion resistance test shall be carried out according to the method specified in GB/T 22639.
Intergranular corrosion performanceFor plate sheets in the state of H116 and H321, the maximum depth of intergranular corrosion does not exceed grade 3 after the intergranular corrosion test. Carry out intergranular pitting corrosion test according to the method specified in GB/T 7998.
5083 aluminum plates

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