Placa de alumínio 5083 – Shipbuilding & Marine Grade Al-Mg Alloy Plate

Product Overview

Placa de alumínio 5083 is a high-strength aluminum-magnesium (Al-Mg) alloy from the 5000 Series, specifically developed for marine and shipbuilding applications. It delivers the highest strength among the non-heat-treatable aluminum alloys, combined with exceptional corrosion resistance in seawater, excellent weldability, and outstanding low-temperature toughness. Nosso 5083 aluminum plates are produced per ASTM B209, GB/T 3880, EM 485 and ABS/DNV/GL/LR marine class rules, available in O, H116, H321 and H112 tempers, with custom sizes, certified for shipbuilding, offshore platforms, pressure vessels and cryogenic applications.

Composição química (%), GB/T 3190 & ASTM B209

Al (Alumínio): 92.4 – 95.6 (balance)
mg (Magnesium): 4.0 – 4.9 (principal alloying element)
Mn (Manganês): 0.40 – 1.0
Cr (Chromium): 0.05 – 0.25
Zn (Zinc): 0.25 max
E (Silício): 0.40 max
Fé (Ferro): 0.40 max
Cu (Cobre): 0.10 max
De (Titanium): 0.15 max
Others Each: 0.05 max, Others Total: 0.15 max

Propriedades mecânicas (Typical Values)

Temper O (Recozido): Resistência à tracção 275-350 MPa, Força de rendimento 125-200 MPa, Alongamento 16-25%
Temper H116 (Strain Hardened, Marinho): Resistência à tracção 290-365 MPa, Força de rendimento 200-285 MPa, Alongamento 12-16%
Temper H321 (Strain Hardened & Stabilized): Resistência à tracção 290-365 MPa, Força de rendimento 200-285 MPa, Alongamento 12-16%
Temper H112 (As Fabricated): Resistência à tracção 275-350 MPa, Força de rendimento 125-200 MPa, Alongamento 12-16%
Dureza: 60-75 HB (H116/H321)
Força de fadiga: 160 MPa (H116, at 5×10⁸ cycles)
Força de cisalhamento: 170-180 MPa
Impact Toughness: Excellent down to -196°C (cryogenic applications)

Propriedades físicas

Densidade: 2.66 g/cm³ (0.096 lb/in³)
Melting Point: 570-640°C (1060-1185°F)
Condutividade térmica: 121 W/(m·K) at 25°C
Condutividade elétrica: 29% IACS (annealed)
Electrical Resistivity: 5.9 × 10⁻⁸ Ω·m
Thermal Expansion Coefficient: 24.0 × 10⁻⁶/K (20-100°C)
Módulos de elasticidade: 71 GPa (10,300 ksi)
Modulus of Rigidity: 26.4 GPa
Poisson Ratio: 0.33

Specifications

Padrões: ASTM B209, GB/T 3880, GB/T 3190, EM 485, JIS H4000, ABS / DNV / GL / LR / CCS marine class approvals
Grossura: 1.0 milímetros – 200 milímetros (0.04″ – 8″)
Largura: 500 milímetros – 3200 milímetros (custom slitting available)
Comprimento: 500 milímetros – 16000 milímetros (custom cutting available)
Temperamento: Ó, H116, H321, H112
Acabamento de superfície: Acabamento do moinho, Bright, Diamond tread (xadrez), Coated
Tolerância: Grossura: ±0.05mm (thin) to ±0.5mm (thick), Width/Length: ±1mm, Flatness: per ASTM B209
Borda: Sheared edge, sawn edge, or as per requirement
Class Certification: ABS / DNV / GL / LR / CCS certificates available on request

Key Features & Vantagens

• Highest strength among non-heat-treatable aluminum alloys
• Exceptional seawater corrosion resistance – ideal for marine environments
• Outstanding weldability – retains strength in the weld zone after welding
• Excellent low-temperature toughness – suitable for cryogenic applications down to -196°C
• Marine class certified – ABS, DNV, GL, LR, CCS approvals available
• High fatigue resistance – excellent for repeated loading structures
• Good formability and machinability in all tempers
• Leve – one-third the weight of steel, reducing vessel weight and fuel consumption
• Stress corrosion cracking resistant – excellent performance in seawater
• Long service life with minimal maintenance in marine environments

Formulários

• Shipbuilding – hull plates, decks, bulkheads, superstructures, hatch covers
• Offshore platforms – topside structures, decks, helidecks, walkways
• Marine vessels – fishing boats, yachts, workboats, patrol boats, ferries
• Pressure vessels – LNG tanks, cryogenic storage tanks, air receivers
• Rail transport – rail car bodies, tanques, structural components
• Road transport – truck bodies, tankers, trailers, dump bodies
• Chemical and petrochemical – storage tanks, piping, processing equipment
• Desalination plants – evaporators, condensers, piping
• Construção – pontes, structural frames, heavy-duty platforms
• Sports and recreation – diving boards, boat trailers, stadium structures
• Cryogenic engineering – storage and transport of liquefied gases

Quality Control & Testing

Every batch of our 5083 aluminum plates undergoes strict quality control:

Chemical Analysis: Spectrometer verification of magnesium and manganese content
Mechanical Testing: Tensile test, yield strength test, elongation test, hardness test (per temper)
Marine Grade Testing: Intergranular corrosion test, exfoliation corrosion test, stress corrosion cracking test (per ASTM G67, G66)
Low-Temperature Testing: Charpy impact test at low temperatures for cryogenic certification
Ultrasonic Testing: UT inspection for internal soundness (available on request)
Surface Inspection: Visual inspection for scratches, pits, oxide stains, and roll marks
Flatness Check: Flatness tolerance per ASTM B209 / GB/T 3880
Documentação: Mill Test Certificate (MTC), marine class certificate (ABS/DNV/GL/LR/CCS), material traceability

Embalagem & Envio

Embalagem: Standard export packaging – plates stacked with protective paper between sheets, wrapped in waterproof kraft paper and plastic film, wooden pallets or crates, steel strapping, corner protection; protective film on request
Marking: Liga, temperamento, tamanho, heat number, standard, class approval stamp, manufacturer logo
Trade Terms: FOB, CIF, CFR, EXW, DDP
Pagamento: T/T (30% deposit, 70% antes do envio), L/C at sight, Western Union, PayPal (sample orders)
Tempo de espera: Standard sizes in stock – 3-7 dias; Custom sizes – 15-30 dias
Quantidade mínima: 1 ton for standard sizes; custom orders negotiable
Loading Port: Qingdao, Shanghai, Tianjin, Ningbo, or as requested

Porque escolher-nos

With over 15 years of experience in aluminum manufacturing and export, we are a trusted supplier of 5083 aluminum plates to shipyards, offshore engineering companies, and pressure vessel manufacturers in more than 50 países. Our factory is approved by major classification societies, ensuring compliance with international marine standards. We maintain large inventory of standard sizes and tempers for immediate delivery, and our experienced team can provide technical consultation, class documentation support, and customized solutions for your specific applications. Contact us today for a competitive quote!