Marine Grade Aluminum for Shipbuilding

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Marine Grade Aluminum for Shipbuilding

Standards: GB, EN, ASTM, AISI, JIS, DIN or other standards required by customers.

Certificate: CCS, DNV, NK, CCS, ABS, BV, LR, KR

Type: Marine grade sheet and plate,bar,profile,pipe fittings and welding materials

Alloy: 5A01, 5A05, 5A06, 5083, 5086, 5454, 5052, 5556, 5754, 6061, etc.

Application:Ship side, bottom outer plating,keel,deck,roof and side panels for offshore vessel containers,gangway,mast

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Aluminum alloys used in warships and boats can be divided into wrought aluminum alloys and cast aluminum alloys according to the processing technology.

Wrought aluminum alloys are generally produced by forging or hot rolling and have good mechanical properties. Wrought aluminum alloys are widely used in shipbuilding.

In the process of lightweighting ships, aluminum alloys are gradually replacing other metal materials such as steel.

Xienuo's marine aluminum alloys include: 5A01/5A05/5A06/5083/5086/5454/5052/5754/6061, etc.

Certificate: CCS, DNV, NK, CCS, ABS, BV, LR, KR, etc.

5a06 marine grade aluminum plate

Hot selling marine aluminum

  • Marine grade aluminum plate
  • Marine grade aluminum profiles
  • Marine pipe fittings
  • Welding marine grade aluminum

Marine aluminum plate

  • 5A01 marine grade aluminum plate
  • 5a05 marine grade aluminum plate
  • 5a06 marine grade aluminum plate
  • 5456(5A30) marine grade aluminum plate
  • 5052 marine grade aluminum plate
  • 5059 marine grade aluminum plate
  • 5083 marine grade aluminum plate
  • 5454 marine grade aluminum plate
  • 5754 marine grade aluminum plate

Marine aluminum profiles

  • Marine aluminum rods
  • Marine aluminum pipe
  • Marine T-shaped bar
  • Marine angle stick
  • Marine L-profile
  • Marine stiffening plate
  • Marine grade aluminum channel
  • Marine grade aluminum beam

Marine grade aluminum pipe fittings

  • Aluminum elbows
  • Aluminum pipe cap
  • Aluminum coupling
  • Aluminum cross
  • Aluminum flange

Welding marine grade aluminum

Aluminum tig welding rod

  • ER5356 aluminum tig rod
  • 5556 aluminum tig welding rod
  • 5183 aluminum tig rod
  • 4043 aluminum tig welding rod

Aluminum wire for mig welder

  • Aluminum mig welding wire 5356
  • Aluminum mig welding wire 5556
  • Aluminum mig welding wire 5183
  • Aluminum mig wire 4043

Characteristics, uses and chemical composition of marine aluminum alloys

Aluminum alloys for ships can be divided into aluminum alloys for hull structures and aluminum alloys for outfitting according to their uses. The aluminum alloys used in ship hull structures are mainly alloys such as 5052, 5083, 5086, 5454, 5456 and 6061.

Aluminum used in shipbuilding
Type Alloy Temper Chemical composition Features Application
For hull 5052 O
Medium strength, good corrosion resistance and formability, high fatigue strength superstructure, auxiliary components, boat hull
5083 O
Typical alloy for welding, with the highest strength among non-heat treated alloys, good weldability, corrosion resistance and low temperature performance Main hull structure
5086 H32
Fe:0- 0.500
The weldability and corrosion resistance are the same as 5083, but the strength is slightly lower and the extrusion property is improved. Main structure of the hull (thin-walled and wide-width extruded profiles)
5454 H32
Fe:0.000- 0.400
22% higher strength than 5052, good corrosion resistance and weldability, average formability Hull structures, pressure vessels, pipelines, etc.
5456 O
Fe: 0.000- 0.500
+Fe+Ni:0.000- 0.500
Similar to 5083, but slightly higher strength and susceptible to stress corrosion hull and deck
6061 T4
Cu :0.15-0.4
Mn :0.15
Mg :0.8-1.2
Zn :0.25
Cr :0.04-0.35
Ti :0.15
Si :0.4-0.8
Fe :0.7
Al :Remainder
A corrosion-resistant alloy that can be strengthened by heat treatment. It has high strength but low weld strength. It is mainly used for screwed and riveted structures that are not in contact with seawater. Superstructure, bulkhead structure, frame, etc.
1050 H112
Si: ≤0.25
Low strength, good processability, weldability and corrosion resistance, high surface treatment interior decoration
1200 Al:Remainder
Si: ≤0.25
3003 H112
Si: ≤0.60
10% higher strength than 1100, good formability, weldability, and corrosion resistance Interior, roof and side panels of LPG tanks

The 5000 series alloy has good corrosion resistance and high strength. It is currently the most widely used alloy among marine aluminum.

marine grade aluminum plate

Since 6000 series alloys will undergo intergranular corrosion in seawater, they are mainly used in the superstructure of ships. Extruded profiles are mainly used for outfitting aluminum alloys.

The strength and process performance of 7000 series alloys after heat treatment are even better than those of 5000 series alloys. They are mainly used in ship superstructures, such as extruded structures, armor plates, etc. However, the disadvantage of 7000 alloys is poor stress corrosion resistance, which limits its use.

Types and uses of marine aluminum

Marine aluminum can be divided into plates, profiles, tubes, rods, forgings, and castings according to product types. The company's current aluminum alloy product categories are mainly plates and strips.

Marine aluminum types
Type Alloy Product Type
Marine grade plate Marine grade profile Marine grade tubing Marine grade bar Marine forgings
For ship hull 5052
5086 × × ×
5454/5456 ×
6N01 × × × × ×
For outfitting 1050 × ×
3203 3003 ×
6063 × ×
Uses of marine grade aluminum
Application site Alloy grade Product type
Ship side, bottom outer plating 5083, 5086, 5456, 5052 plate, profile
keel 5083 plate
rib cage 5083 plate, profile
ribs, next door 5083, 6061 plate
Engine pedestal 5083 plate
deck 5052, 5083, 5086, 5454, 5456, 7039 plate, profile
wheelhouse 5083, 6N01, 5052 plate, profile
bulwark 5083 plate, profile
chimney 5083, 5052 plate
Roof and side panels for offshore vessel containers 3003, 3004, 5052 plate
porthole 5052, 5083, 6063, AC7A Profiles, castings
gangway 5052, 5083, 6063, 6061 Profile
mast 5052, 5083, 6063, 6061 tube, bar, profile
Structural materials for offshore vessel containers 6063, 6061, 7003 Profile

The temper of marine grade aluminum

The temper of aluminum alloy indicates the material's processing method, internal structure and mechanical properties. Generally, engineers use materials in different states according to different uses. 5000 series alloys used in ship hull structures adopt O and H states, and 6000 series alloys adopt T state.

H temper code of 5000 series alloy for hull structure

H111: After annealing, cold working (rolling or straightening)

H112: Extruded state or original state after hot rolling, but there are requirements for the mechanical properties of the material, and mechanical property experiments are required.

H116: Cold working and low temperature annealing to improve the material’s resistance to spalling corrosion.

H14: Tensile strength is between O state and H18 state (1/2 hard state)

H311: H31 plus small cold working status

H32: The tensile strength is between the O state and the H34 state (stabilization treatment is performed after cold working. 1/4 hard state)

H321: H32 plus small cold working status

H323: Special processing state improves the stress corrosion cracking resistance of H32 (1/4 hard state)

H34: The tensile strength is between the O state and the H38 state (stabilization treatment is performed after cold working. 1/2 hard state)

H343: Special processing state improves the stress corrosion cracking resistance of H34 (1/2 hard state)

Marine 6000 series alloy T temper code

T1: Natural aging state after high-temperature thermal processing and cooling. It is suitable for hot-extruded materials that do not undergo cold processing, or straightening and other cold processing products that have little impact on their calibrated mechanical properties.

T4: After solid solution treatment, natural aging state. It is suitable for products that do not undergo cold processing after solution treatment, or products where cold straightening has little impact on the calibrated mechanical properties.

T5: Artificial aging state after high-temperature hot processing, suitable for products that do not undergo cold processing after high-temperature forming. Or products whose straightening and cold working has little impact on their calibrated mechanical properties.

T6: Artificial failure state after solution treatment. It is suitable for products that do not undergo cold working after solution treatment, or that have little impact on their calibrated mechanical properties due to straightening and other operations.

T61: Treatment in hot water T6 treatment, suitable for castings.

Principles of material selection for marine aluminum

  • Has high specific strength and specific modulus
  • Excellent welding performance
  • Excellent corrosion resistance
  • Good welding and processing formability

Four major advantages

  • Excellent welding performance
  • Excellent corrosion resistance
  • Low density and light
  • Good cold and hot forming properties

Marine Aluminum Price

Price composition

Aluminum ingot price + processing fee (including site, labor, etc.) + freight + profit = aluminum plate price

Why do the quotes you receive vary so much?

  • Cost control
  • Industrial advantages
  • Location advantage
  • Service quality

Transactions and Services

  • Production standards: GB, EN, ASTM, AISI, JIS, DIN or other standards required by customers.
  • Price Term: CIF CFR FOB EX-WORK
  • Payment Term: TT, LC at sight, West Union,
  • Package Type: Standard seaworthy export packing with craft paper, anti-blushing agent, transparent plastic protective film, wooden pallets. or according to the customers' request for aluminum circle
  • MOQ: Generally, the trial order will be accepted. The MOQ can be confirmed according to the different products. (100kgs for ready stock)
  • Supply Ability: 100, 000 Tons per Month
  • Additional services: sawing, milling, laser engraving, bending, anodizing, electrophoresis, spraying, conductivity testing, temperature resistance level testing, etc.
  • Dimensions: Complete molds, wide range of customization, and large quantities of some alloys in stock. Welcome to consult us.
  • Delivery time: fast delivery, as short as 3 days.

Why choose us?

Xienuo is a large-scale aluminum product manufacturer. We have more than 20 years of rich experience in aluminum plate production. We have 4 casting and rolling lines, 8 hot rolling lines and 4 continuous casting and rolling lines. We only provide high-quality marine aluminum plates and aluminum profiles.


  • With marine plate certification
  • Strong comprehensive production strength
  • Improve after-sales service

Additional services: cutting, laser engraving, anodizing, electrophoresis, spraying, polishing, laminating, embossing, etc.

Product testing: supports third-party testing, supports flatness testing, tensile strength testing, straightness testing and other testing

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Henan Province,China

Office Address

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