Plaque en aluminium 5083 - Shipbuilding & Marine Grade Al-Mg Alloy Plate

Product Overview

Plaque en aluminium 5083 is a high-strength aluminum-magnesium (Al-Mg) alloy from the 5000 série, 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. Notre 5083 aluminum plates are produced per ASTM B209, GB/T 3880, DANS 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.

Aluminium 5083 Thick Plates in Stock — Aluminium 5083 – Thick Marine Grade Plates in Stock

Composition chimique (%), GB/T 3190 & ASTM B209

Al (Aluminium): 92.4 – 95.6 (balance)
Mg (Magnésium): 4.0 – 4.9 (principal alloying element)
Mn (Manganèse): 0.40 – 1.0
Cr (Chrome): 0.05 – 0.25
Zn (Zinc): 0.25 max
Et (Silicium): 0.40 max
Fe (Fer): 0.40 max
Cu (Cuivre): 0.10 max
De (Titane): 0.15 max
Others Each: 0.05 max, Others Total: 0.15 max

Propriétés mécaniques (Typical Values)

Temper O (Recuit): Résistance à la traction 275-350 MPa, Limite d'élasticité 125-200 MPa, Élongation 16-25%
Temper H116 (Strain Hardened, Marin): Résistance à la traction 290-365 MPa, Limite d'élasticité 200-285 MPa, Élongation 12-16%
Temper H321 (Strain Hardened & Stabilized): Résistance à la traction 290-365 MPa, Limite d'élasticité 200-285 MPa, Élongation 12-16%
Temper H112 (As Fabricated): Résistance à la traction 275-350 MPa, Limite d'élasticité 125-200 MPa, Élongation 12-16%
Dureté: 60-75 HB (H116/H321)
Résistance à la fatigue: 160 MPa (H116, at 5×10⁸ cycles)
Résistance au cisaillement: 170-180 MPa
Impact Toughness: Excellent down to -196°C (cryogenic applications)

Propriétés physiques

Densité: 2.66 g/cm³ (0.096 lb/in³)
Melting Point: 570-640°C (1060-1185°F)
Conductivité thermique: 121 W/(m·K) at 25°C
Conductivité électrique: 29% IACS (annealed)
Electrical Resistivity: 5.9 × 10⁻⁸ Ω·m
Thermal Expansion Coefficient: 24.0 × 10⁻⁶/K (20-100°C)
Module d'élasticité: 71 GPa (10,300 ksi)
Modulus of Rigidity: 26.4 GPa
Poisson Ratio: 0.33

Specifications

Normes: ASTM B209, GB/T 3880, GB/T 3190, DANS 485, JIS H4000, ABS / DNV / GL / LR / CCS marine class approvals
Épaisseur: 1.0 mm – 200 mm (0.04″ – 8″)
Largeur: 500 mm – 3200 mm (custom slitting available)
Longueur: 500 mm – 16000 mm (custom cutting available)
Caractère: Ô, H116, H321, H112
Finition de surface: Mill finish, Bright, Diamond tread (à carreaux), Coated
Tolérance: Épaisseur: ±0.05mm (thin) to ±0.5mm (thick), Width/Length: ±1mm, Flatness: per ASTM B209
Bord: Sheared edge, sawn edge, or as per requirement
Class Certification: ABS / DNV / GL / LR / CCS certificates available on request

Key Features & Avantages

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
Poids léger – 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

Applications

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

Aluminium 5083 Plate with Protective Film — Aluminium 5083 – Plate with Protective Film Ready for Shipping

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
Documentation: Mill Test Certificate (MTC), marine class certificate (ABS/DNV/GL/LR/CCS), material traceability

Emballage & Expédition

Emballage: 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: Alliage, caractère, taille, heat number, standard, class approval stamp, manufacturer logo
Trade Terms: GOUSSET, CIF, CFR, EXW, DDP
Paiement: T/T (30% deposit, 70% before shipment), L/C at sight, Western Union, PayPal (sample orders)
Délai de mise en œuvre: Standard sizes in stock – 3-7 jours; Custom sizes – 15-30 jours
MOQ: 1 ton for standard sizes; custom orders negotiable
Loading Port: Qingdao, Shanghai, Tianjin, Ningbo, or as requested

Pourquoi nous choisir

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 des pays. 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!