Product Overview
アルミ板 5083 is a high-strength aluminum-magnesium (Al-Mg) alloy from the 5000 シリーズ, 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. Our 5083 aluminum plates are produced per ASTM B209, ギガバイト/トン 3880, で 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.

化学組成 (%), ギガバイト/トン 3190 & ASTM B209
アル (アルミニウム): 92.4 – 95.6 (balance)
マグネシウム (マグネシウム): 4.0 – 4.9 (principal alloying element)
ん (マンガン): 0.40 – 1.0
Cr (クロム): 0.05 – 0.25
亜鉛 (亜鉛): 0.25 max
と (シリコン): 0.40 max
鉄 (鉄): 0.40 max
銅 (銅): 0.10 max
の (チタン): 0.15 max
Others Each: 0.05 max, Others Total: 0.15 max
機械的性質 (Typical Values)
Temper O (Annealed): 抗張力 275-350 MPa, 降伏強さ 125-200 MPa, 伸長 16-25%
Temper H116 (Strain Hardened, 海洋): 抗張力 290-365 MPa, 降伏強さ 200-285 MPa, 伸長 12-16%
Temper H321 (Strain Hardened & Stabilized): 抗張力 290-365 MPa, 降伏強さ 200-285 MPa, 伸長 12-16%
Temper H112 (As Fabricated): 抗張力 275-350 MPa, 降伏強さ 125-200 MPa, 伸長 12-16%
硬度: 60-75 HB (H116/H321)
疲労強度: 160 MPa (H116, at 5×10⁸ cycles)
剪断強度: 170-180 MPa
Impact Toughness: Excellent down to -196°C (cryogenic applications)
物理的特性
密度: 2.66 g/cm3 (0.096 lb/in³)
Melting Point: 570-640℃ (1060-1185°F)
熱伝導率: 121 W/(m·K) at 25°C
電気伝導性: 29% IACS (annealed)
Electrical Resistivity: 5.9 × 10⁻⁸ Ω·m
Thermal Expansion Coefficient: 24.0 × 10⁻⁶/K (20-100℃)
弾性率: 71 GPa (10,300 クシ)
Modulus of Rigidity: 26.4 GPa
Poisson Ratio: 0.33
Specifications
規格: ASTM B209, ギガバイト/トン 3880, ギガバイト/トン 3190, で 485, HE H4000, ABS / DNV / GL / LR / CCS marine class approvals
厚さ: 1.0 んん – 200 んん (0.04″ – 8″)
幅: 500 んん – 3200 んん (custom slitting available)
長さ: 500 んん – 16000 んん (custom cutting available)
気性: ○, H116, H321, H112
Surface Finish: Mill finish, Bright, Diamond tread (市松), Coated
許容範囲: 厚さ: ±0.05mm (thin) to ±0.5mm (thick), Width/Length: ±1mm, Flatness: per ASTM B209
角: Sheared edge, sawn edge, or as per requirement
Class Certification: ABS / DNV / GL / LR / CCS certificates available on request
Key Features & 利点
- 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
- 軽量 – 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
アプリケーション
- 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, tanks, structural components
- Road transport – truck bodies, tankers, trailers, dump bodies
- Chemical and petrochemical – storage tanks, piping, processing equipment
- Desalination plants – evaporators, condensers, piping
- Construction – 橋, 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 / ギガバイト/トン 3880
ドキュメンテーション: Mill Test Certificate (MTC), marine class certificate (ABS/DNV/GL/LR/CCS), material traceability
Packaging & 運送
Packaging: 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: 合金, 気性, サイズ, heat number, standard, class approval stamp, manufacturer logo
Trade Terms: FOB, CIF, CFR, EXW, DDP
支払い: T/T (30% deposit, 70% 出荷前に), L/C at sight, Western Union, PayPal (sample orders)
Lead Time: Standard sizes in stock – 3-7 日々; Custom sizes – 15-30 日々
MOQ: 1 ton for standard sizes; custom orders negotiable
Loading Port: Qingdao, Shanghai, Tianjin, Ningbo, or as requested
私たちを選ぶ理由
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 国. 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!
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