5086 alloy for Shipbuilding
Aluminum alloy like 5086 alloy has been used in shipbuilding industry for nearly a hundred years. With the rapid development of shipbuilding industry at home and abroad, the lightweight of ships has been paid more and more attention. Due to the low density, high strength, high rigidity and corrosion resistance of aluminum, ships made of aluminum are 15-20% lighter than those built with steel or other synthetic materials.
The high toughness, corrosion resistance and weldability of aluminum alloys provide a good choice for building weight-critical ships. Due to the lower processing cost of aluminum, it is more economical to use aluminum to build ships. Aluminum alloy can be used as a sheet, and can also be processed by extrusion and casting.
The outstanding physical properties of aluminum alloys make the use of aluminum alloy ships very economical. From the point of view of ship designers, ships made of aluminum alloy can achieve higher speed and longer service life. These advantages of marine aluminum sheets make it develop rapidly in the application of ships.
Marine aluminum plates are generally mainly made of 5083 aluminum plates, aluminum 5086 h111, and 5454 aluminum plates, especially for ship decks and hull parts. Haomei marine aluminum sheets has got the certification of DNV, LR, ABS, CCS,etc.
Alloy | Temper | Chemical composition | Features | Application |
5052 | O,H14 H34 | Al: reminder Si: <0.25 Cu: ≤0.1 Mg: 2.2-2.8 Zn: ≤0.10 Mn: <0.10 Cr: 0.15-0.35 Fe: ≤0.40
| Medium strength, good corrosion resistance and formability, high fatigue strength | superstructure, auxiliary components, small boat hull |
5083 | O, H32 | Al: reminder Si: <0.40 Cu: ≤0.1 Mg: 4.0-4.9 Zn: ≤0.25 Mn: 0.40-1.0 Ti:≤0.15 Cr: 0.05-0.25 Fe: ≤0.40
| Typical aluminum alloy for welding, highest strength among non-heat treated alloys, good weldability, corrosion resistance and low temperature performance | The main structure of the hull |
5086 | H32,H34, h111 | Al: reminder Si: <0.40 Cu: ≤0.1 Mg: 2.40-3.0 Zn: ≤0.25 Mn: 0.20-0.7 Ti:≤0.15 Cr: 0.05-0.25 Fe: ≤0.50 | Its weldability and corrosion resistance are the same as 5083, and has slightly lower strength and improved extrudability. | Main structure of hull |
5454 | H32,H34 | Al: reminder Si: ≤0.25 Cu: ≤0.1 Mg:2.4-3.0 Zn: ≤0.25 Mn: 0.50-1.0 Ti:≤0.20 Cr: 0.05-0.20 Fe: ≤0.40
| 22% higher strength than 5052, good corrosion resistance and weldability, general formability | Hull structures, pressure vessels, piping |
5456 | O,H321 | Al: reminder Si: ≤0.50 Cu: 3.8-4.9 Mg: 1.2-1.8 Zn: ≤0.30 Mn: 0.30-0.9 Ti:≤0.15 Ni: ≤0.1 Fe: ≤0.50 | Similar to 5083, but with a slightly higher strength and stress corrosion susceptibility | Hull and Deck |
6061 | T4,T6 | Al: reminder Si: 0.4-0.8 Cu: 0.15-0.4 Mg: 0.8-1.2 Zn: 0.25 Mn: 0.15 Cr: 0.04-0.35 Fe: 0.7 Ti: 0.15 | Corrosion-resistant alloys that can be strengthened by heat treatment, high strength, but low welding seam strength, mainly used for screwed and riveted structures that are not in contact with seawater. | Superstructures, bulkhead structures, frames, etc. |
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