Although pure aluminum has a high natural corrosion resistance compared to many other metals, it requires additional protection in marine application due to the long-term exposure to seawater and heavy humidity. When forming alloys with other metals (such as magnesium), aluminum will have a higher level of corrosion resistance and can withstand continuous contact with water and salt water. These specially treated aluminum alloys are called ocean grade aluminum plates.
For ships, the corrosion environment of different parts is different. The ship bottom is mainly affected by the infiltration and erosion of natural seawater. The parts above the waterline are mainly affected by salt spray corrosion and atmospheric aging. Therefore, different types of aluminum plates shall be selected for different hull parts.
Ship deck: The ship deck is composed of aluminum plate and skeleton. It plays an important role in ensuring the strength and unsinkability of the hull, and provides a place for arranging various cabins and mechanical equipment. The deck part of the ship is directly exposed to the atmosphere and to the sun, which is easy to be condensed by accumulated water and eroded by wind and rain. Therefore, the ship deck is required to have excellent corrosion resistance and water resistance. The main alloys of aluminum deck are 5052, 5083, 5086 and 6061.
In addition, due to personnel activities and mechanical operations, the deck is often subject to trampling friction and rolling wear, and due to the pollution of various oily, acidic and alkaline media, it needs to be cleaned frequently. Therefore, ship deck materials should have good skid resistance and wear resistance, so some deep processed aluminum plates, such as tread aluminum plates, will be selected.
Ship side & outboard bottom plate: The ship side and outboard bottom plate are immersed in seawater for a long time, which has higher requirements on the corrosion resistance of aluminum plates. Therefore, aluminum plates such as 5083, 5086, 5456, 5052 can be selected to better resist the corrosion of seawater and extend the service life of the ship.
Roof and side plates of ships and sea containers: roof and side plates of ships do not need to be immersed in seawater for a long time, but they are exposed in a humid marine environment for a long time. Compared with corrosion resistance, they have higher requirements for rust resistance. Therefore 3003 aluminum plates, 3004 aluminum plates and 5052 aluminum plates can be used, which have good rust prevention effect and can withstand damage caused by long-term wind and rain.
Cab: The aluminum plate in the cab is less affected by the environment and air than the ship plate and bottom plate, so the requirements for corrosion resistance and rust prevention are relatively low, but the requirements for precision and other properties are higher. Therefore, 5083 aluminum plate, 6N01 aluminum plate and 5052 aluminum plate can be selected. The non-magnetic plate of aluminum plate keeps the compass unaffected and ensures the correct direction of the ship when sailing.
| Alloy | 5000 series: Marine Aluminum Plate 5083 5086 5383 5052 5754 |
| 6000 series: Marine Aluminum Plate 6060 6083 6061 | |
| Temper | H12, H13, H14, H15, H16, H18, H19, H20, H111, H112, H114, etc. |
| Size | 4x8 aluminum plate, 4x10aluminum plate, 5x10aluminum plate |
| Thickness | Sheets more than 1.6mm and Plates more than 30mm. 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 5mm, 6mm, 10mm (thick) etc. |
| Width | To reduce welding, 2.0m wide aluminum plates are often used Large ships usually use 2.5m wide aluminum plates |
| Length | Commonly 6m |
| Special customization | Some plates with special specifications can be customized according to the contract of the shipyard |
| Surface treatment | anodizing, color coating, mirror marine aluminum plate, etc. |
| Price terms | ex-factory price, FOB, CIF, CFR etc. |
| Delivery time | according to the quantity of order |
| Packaging | Export standard packaging: bundled wooden cases, suitable for all kinds of transportation; According to customer requirements |
| Authentication | ABS, BV, CCS, DNV, KR, LR, NK, RINA |
From the development of marine aluminum, 5000 series and 6000 series aluminum plates are the most common marine aluminum plates among 1-8 series aluminum alloys. And considering the requirements of different parts of the hull for different properties of aluminum plates, such as skid resistance, sound insulation and thermal insulation, some deeply processed aluminum plates also occupy a larger and larger proportion in the marine aluminum plate market. Hot selling products include tread aluminum plate, aluminum rib plate, foam aluminum plate, honeycomb aluminum plate.
Chalco focuses on the research and development of 5-series and 6-series marine aluminum plates, as well as deep processed aluminum plates 5086 marine aluminum pedals, 6082 marine aluminum ribs, 3003 marine honeycomb plates, 5052, 6083 marine checkered plates, etc. In addition, Chalco continues to strengthen scientific research, expand production scale and enter the high-end manufacturing market of marine aluminum.
5000 series marine aluminum alloy: 5083, 5086, 5383, 5059, 5052, 5754, etc.
6000 series marine aluminum alloy: 6061
Marine Deep Processing Aluminum Plate: marine figured aluminum plate (5086, 50525083), marine foam aluminum plate, marine honeycomb aluminum plate, marine grade aluminum rib plate, etc.
5000 Series products are usually aluminum magnesium alloys, containing a small amount of other trace elements, and are the most widely used aluminum. Because of their good rust and corrosion resistance, they have very good fatigue strength. Therefore, it can be used in various wet and corrosive places, such as ships in the marine field.
| Temper | O, H111, H112, H116, H321 |
| Chemical composition | Si: ≤0.40; Cu: ≤0.10; Mg: 4.0～4.9; Zn: ≤0.25; Mn: 0.40～1.0 ; Ti: ≤0.15; Cr: 0.05～0.25; Fe: 0～0.400; Al: Reminder |
| Mechanical Properties | Tensile strength (Mpa) ≥275 |
| Yield strength (Mpa) ≥125 | |
| Elongation A(%) ≥10 | |
| Physical characteristics | Coefficient of thermal expansion(20-100℃)μm/mk: 24.2 |
| Melting point range(℃): 574-638 | |
| Conductivity 20℃(68°F)(%IACS): 29 | |
| Resistivity 20℃(68°F)Ωmm2/m: 0.0595 | |
| (g/cm3)Density 20℃: 2.75 | |
| Performance advantages | Medium and high strength |
| Good corrosion resistance | |
| Excellent weldability | |
| Good cold workability | |
| Good molding performance | |
| Poor machinability | |
| It cannot be strengthened by heat treatment and has good plasticity in semi cold work hardening | |
| Strong resistance to seawater and industrial chemicals | |
| Polishable |
Application of marine 5083 aluminium plate
5083 is a professional rust proof aluminum plate, which is suitable for hull structural materials. It is specially used for large ships, yachts and other ships, as well as the hull of inland river patrol ships. It is Used for manufacturing hull, deck, console, etc.
Advantage of marine 5083 aluminium plate
| Temper | O, H111, H112, H116, H32, H34 |
| Chemical composition | Si: ≤0.40; Cu:≤0.10; Mg: 3.5～4.5; Zn: ≤0.25; Mn: 0.20～0.7; Ti: ≤0.15; Cr: 0.05～0.25; Fe: 0～0.500; Al: Reminder |
| Mechanical properties | Tensile strength(Mpa):≥240 |
| Yield strength (MPa):≥95 | |
| Elongation A(%):≥10 | |
| Standard | EN573, ASTM b928 |
| Performance advantages | Strength lower than 5083; |
| Good weldability; | |
| Good corrosion resistance; | |
| High conductivity; | |
| Better extrudability; | |
| 5086 can be strengthened by strain hardening and cold working until it is stronger than 5083 alloy. |
Application of marine 5086 aluminium plate
5086 aluminum plate is mainly used in hull main structure (thin wall and wide extruded profiles), ship side and bottom outer plate.
Advantage of marine 5086 aluminium plate
| Temper | O, H14, H32, H34 |
| Chemical Composition | Si: 0.16-0.18; Cu: 0.12; Mg: 4.55; Zn: 0.25; Mn: 0.81; Ti: 0.12; Cr: 0.10; Fe: 0.18; Zr: 0.15; Al: Reminder |
| Mechanical Properties | Tensile strength (Mpa): 210-260 |
| Yield strength (Mpa): 130 | |
| Elongation (A%) 12-20 | |
| physical Characteristics | Coefficient of Thermal Expansion(20-100℃)μm/mk: 23.8 |
| Melting Point Range(℃): 607-649 | |
| Conductivity 20℃(68°F)(%IACS): 35 | |
| Resistivity 20℃(68°F)Ωmm2/m: 0.0493 | |
| (g/cm3)Density 20℃: 2.73 | |
| Performance Advantages | Medium strength; |
| High fatigue strength; | |
| Good corrosion resistance; | |
| Good formability; | |
| Good weldability and solderability; | |
| Good operability; | |
| Good machinability; | |
| The plasticity is good in semi cold work hardening and low in cold work hardening. Can not be strengthened by heat treatment. |
Application of marine 5052 aluminium plate
It is mainly used for warship, submarine hull, hull superstructure, auxiliary parts, small hull, oil tank container, etc.
Advantage of marine 5052 aluminium plate
| Temper | O, H116, H111, H112, H22, H24, H32, H321, H34 |
| Chemical composition | Si: 0.16-0.18; Cu: 0.12; Mg: 4.55; Zn: 0.25; Mn: 0.81; Ti: 0.12; Cr: 0.10; Fe: 0.18; Zr: 0.15; Al: Reminder |
| Mechanical properties | Tensile strength(Mpa)≥270 |
| Yield strength(Mpa)≥120 | |
| Elongation(A%)≥12 |
Application of marine 5383 aluminium plate
5383 aluminum plates are widely used in high-speed ships, such as hydrofoil craft, hovercraft, speedboats, cruise ships, sailboats, catamarans, offshore cruise ships, etc. The application parts include the side, bottom shell, engine base, deck, top cover and side plate ships.
Advantage of marine 5383 aluminium plate
1. 5383 aluminum plate is an upgraded version of 5083 aluminum plate. 5383 marine grade aluminum plate has better corrosion resistance, and its hardness is also increased by 10%. These improvements reduce the number of welds. The yield point of welded structure is increased by 15%.
2. The strength and recrystallization temperature of 5383 aluminum alloy can be significantly improved by adding Zr to the composition of 5383 aluminum alloy. Therefore, compared with 5083 aluminum alloy, 5383 aluminum alloy has higher strength and better welding performance.
| Temper | O, H11, H112, H116, H321 |
| Chemical composition | Si:≤0.45; Fe:≤0.5; Cu:≤0.25; Mn: 0.6-1.2; Mg: 5.0-6.0; Cr:≤0.25; Zn: 0.4-0.9; Ti:≤0.2; Zr: 0.05-0.25; Al: Reminder; |
| Mechanical properties | Tensile strength Rm(Mpa):≥330 |
| Yield strength Rp0.2 (Mpa):≥160 | |
| Elongation A (%):≥10 | |
| Performance Advantages | Low density, only 266g/m3; |
| High tensile strength; | |
| Excellent corrosion resistance; | |
| Excellent durability; | |
| Good welding performance, not easy to crack and deform after processing; | |
| Nonmagnetic; | |
| Good low-temperature performance. |
Application of marine 5059 aluminium plate
Small and medium-sized ships, especially hydrofoil ships, hovercraft, small warships, large cruise ships and high-end ocean going ships.
Advantage of marine 5059 aluminium plate
1. With low density, it can be used as the structural material of the ship to reduce the dead weight of the ship, increase the load, improve the stability and speed.
2. It has strong corrosion resistance to seawater and marine climate, and good welding performance. It is commonly used in large-scale cruise ships and other offshore projects as well as high-end ocean going ships
5454 marine aluminum plate
The main alloy element of marine aluminum plate is magnesium. 5454 alloy aluminum plate is a typical rust proof aluminum, which can adapt to harsh corrosion environment and has high strength.
Common alloy state: O, H32, H34
Application: mainly used for ship structures, internal pressure vessels, pipelines, etc. also for speedboats, fishing boats, large cargo ships, etc.
Features: 22% higher strength than 5052 aluminum plate, good corrosion resistance and weldability, and general formability.
5456 marine aluminum plate
This marine grade aluminum cannot be strengthened by heat treatment. It has high plasticity in the annealed state and medium plasticity in the semi cold work hardening state. It has good welding performance in hydrogen atom welding, spot welding, gas welding, argon arc welding, etc. More importantly, it also has high corrosion resistance.
Common alloy state: O, H111, H112, H116, H321
Application: The strength of 5456 aluminum plate is higher than 5086 and 5083, and it is commonly used for bulkhead, upper fitting and hull of patrol boat and work boat. 5456 aluminum plates in different states can meet the special needs of decks in different parts such as living deck, walking deck, and driving deck.
Features: Aluminum alloy deck is famous for its light weight, beautiful appearance and good corrosion resistance. The use of 5456 aluminum plate for shipbuilding can reduce ship weight and energy. Marine grade aluminum 5456 can adapt to long-term humid marine environment, with relatively reasonable price and low shipbuilding cost.
5754 marine aluminum plate
5754 alloy aluminum belongs to Al Mg Si series aluminum alloy, which is widely used in the field of advanced aluminum processing. Unlike other magnesium alloys, it maintains this rating when operating in the 150-300 degree Fahrenheit range, therefore it has excellent corrosion resistance. It has high strength, good weldability, general formability, poor machinability and can not be strengthened by heat treating.
Performance decides that 5754 aluminum plate is very suitable for marine industry and other industrial applications with corrosive operating environment. Typical applications include ship structures, ship components, offshore installations, and chemical handling containers.
6000 series products are Al Mg Si alloys, among which the most commonly used marine alloy is 6061 marine aluminum plate. 6061 aluminum sheet has good corrosion resistance, high toughness, no deformation after processing, easy coloring, good oxidation effect and other characteristics, and can maintain good quality and processability after annealing. Especially, it has no tendency of stress corrosion cracking, and has excellent weldability and good cold workability.
| Alloy | 6061 |
| Temper | F, O, T4, T6, T651, T6511 |
| Chemical composition | Si: 0.4-0.8; Fe: 0.70; Cu: 0.15-0.4; Mn: 0.15; Mg: 0.8-1.2; Cr: 0.04-0.35; n: 0.25; Ti: 0.15; Zr:-; AL: Reminder |
| Mechanical Properties | Tensile strengthRm/Mpa: 290 |
| Yield strengthRp0.2/Mpa: 240 | |
| Elongation: 10 | |
| Hardness: 95 | |
| physical Characteristics | Coefficient of thermal expansion(20-100℃)μm/m-k: 23.6 |
| Melting point range(℃):582-652 | |
| Conductivity 20℃(68°F)(%IACS): 40 | |
| Resistivity 20℃(68°F) Ωmm2/m: 0.043 | |
| (g/cm3)Density 20℃: 2.8 | |
| Performance advantages | Medium high strength; |
| Good corrosion resistance; | |
| Good weldability and solderability; | |
| Good operability; | |
| Good machinability. |
Application of 6061 marine aluminium plate
6061 aluminum plate is mainly used for yachts, fishing line wheels and the parts do not contact with sea water, such as screw and rivet structures.
6061 aluminum is often used to make sailing masts and other marine accessories. With magnesium and silicon as alloy elements. It has excellent processing performance, good corrosion resistance, high toughness, and no deformation after processing.
Catamaran is a conjoined ship that is horizontally connected by two or more hulls. With light weight, strong mechanical properties and corrosion resistance, 6061 aluminum profiles are widely used in the construction of catamarans.
The deck is an important part of the hull. It is the plane structure above the inner bottom plate in the hull structure. 6061 aluminum checkered plate has excellent corrosion resistance, weather resistance and skid resistance, and is an indispensable material for making ship decks.
Advantage of 6061 marine aluminium plate
Chalco can produce ultra wide 6061 aluminum plates, with a width of 2650mm. It is one of the few domestic direct manufacturers that can produce ultra wide plates. 6061 aluminum plate can be used on ships and it is also popular in mobile phone card slot welcome, mobile phone shell, mold, automobile, precision machining, etc.
When machinability, strength and corrosion resistance are the primary factors, marine grade aluminum 5052 is one of the most commonly used alloys. However, 6061 is also a cost-effective solution, but its durability is slightly poor.
| Alloy | 5052, 5083, 5086 | |
| Temper | H114, H224, H12, H14, H16, H18, H32, H34, H36, H38, T4, T6, F | |
| Pattern | Depending on the type of board, 1 to 5 strips are arranged adjacent to each other to form a grid pattern. It is divided into 1 (diamond), 2, 3 and 5 modes. | |
| Paper Interleaves | According to requirement | |
| Normal size | 1200×2400mm, 1219×2438mm, 1219×3048mm | |
Available sizes for Different Surfaces
|
|
Mill finish Surface | Bright finish Surface |
| Thickness (mm) | 1.00-6.50mm | 1.20-6.50mm |
| Width (mm) | Maximum 1500mm | Maximum 1650mm |
| Length (mm) | Maximum 6000mm | Maximum 6000mm |
| Pattern height | Sheet Thickness from 1.0mm to 2.0mm, bar height: 0.50mm | Sheet Thickness from 1.0mm to 2.0mm, bar height: 0.50mm |
| Sheet Thickness from 1.0mm to 2.0mm, bar height: 1.00mm | Sheet Thickness from 1.0mm to 2.0mm, bar height: 1.00mm | |
| Sheet Thickness above 2.0mm, bar height: 1.50mm | Sheet Thickness above 2.0mm, bar height: 1.50mm |
During production, the pattern is applied to the plate by forming rolls which are pressed onto the plate with a large force. In doing so, the bottom of the plate remains plain. It is not possible to emboss the aluminium plate subsequently.
Due to the inclined fin structure, the tread aluminum plate not only has the characteristics of corrosion resistance, rust prevention, low quality, high flexibility, etc., but also has decorative and anti-skid properties. It is suitable for outdoor and wet areas. Therefore, it is often used on the ship deck, indoor or outdoor stairs and other parts of the ship
In addition to the finned structure, there are many other shapes and patterns which provide the same characteristics.
| Alloy | 3003 H18 | |||
| Core height range | 3-570mm | |||
| Core max. Tension size | Side size 6 and under: W1500 × L4000mm | |||
| Side size 7.5 and above: W1500 × L6000mm | ||||
Overall dimensions
| Type | Side length (a) | Bore Diameter (D) | Bore Diameter (D) Inch |
| CMA53 | 3 | 5 | 3/16 |
| CMA54 | 4 | 7 | 1/4 |
| CMA55 | 5 | 9 | 3/8 |
| CMA57 | 7.5 | 13 | 1/2 |
| CMA58 | 8 | 15 | 7/12 |
| CMA510 | 10 | 17 | 3/4 |
Marine aluminum honeycomb panel is a new type of marine internal bulkhead material independently developed by Chalco and successfully manufactured with domestic green materials.
Composition of Marine Aluminum Honeycomb Panel
The composition of marine aluminum honeycomb panel : fireproof panel + aluminum panel + aluminium honeycomb + aluminum panel + fireproof panel. The aluminum panel contains 98% aluminum, 1% mg, and other small amounts of iron and silicon, after H19 ultra cold hardening treatment, the yield strength reached 175Mpa, composite American Standard QQ-A-250/26 and British standard BS1470.
Marine aluminum honeycomb panel comes in a variety of sizes, In order to obtain the minimum weight and the maximum rigidity and strength of the sandwich structure. The main structure of the aluminum panel and the aluminum honeycomb core material and the fireproof panel are adhered by viscose, It guarantees the structural integrity and full performance of the composite plate. In the bonding process of the composite plate, a certain amount of pressure is applied to the contact panel, this ensures that the glue has good contact with the two layers. After complete cure, the peel strength reached 30-40N/era, and the shear strength reached 7.5Mpa (DIN53282 standard).
Characteristics and applications of marine Aluminum Honeycomb Panel
1. high strength, light weight, moisture resistance and good corrosion resistance
Marine aluminum honeycomb panel has no dust leakage phenomenon, not harmful to human health, which effectively overcome the traditional composite rock wool board core material, rock wool absorb moisture, corrosion structure plate, affect the strength, and shorten the life of shortcomings.
2. sound insulation, heat insulation, fire protection and other functional features
Marine aluminum honeycomb panel is a kind of material with excellent sound insulation and vibration isolation effect. It is suitable for wall partition and decoration materials for high-speed yachts and luxury passenger ships.
3. good flatness and strong adaptability
This is particularly important for ships that emphasize both fast performance and comfort. The selection of such plates not only increases the cost, facilitates the construction, but also is technically feasible and ensures the use performance.
To sum up, the marine aluminum honeycomb panel structure is used as the interior partition panel of the cabin, not only can maintain the strength and stiffness requirements, meet the requirements of sound insulation and heat insulation, but also can reduce the weight of the structure.
| Density | 0.25g/cm3-0.75g/cm3 |
| Porosity | 75%-90% |
| Pore size | uniform distribution of 1-10mm, and the pore size of 4-8mm |
| Compressive strength | 3Mpa-17Mpa |
| Bending strength | 3Mpa-15Mpa |
| Ratio of strength to bear weight | quality can reach more than 60 times |
| Other features | Fire resistance is not burning, not toxic gas; corrosion resistance, long service life |
| Product specification | 2400mm*800mm*H or customized according to customer requirements. |
Marine foam aluminum is suitable for ship cabins. Marine foam board has the characteristics of good fire prevention, flame retardancy, moisture-proof and dust-free. The utility model solves the problem that the traditional sound absorbing materials are easy to absorb moisture and are harmful to the health of the crew. It is more suitable to be used as sound insulation material for ship cabin.
The width of the stiffened plate refers to the length and width, the length is generally 6000mm., the width depends on the extrusion die, generally less than 2100mm.
The length of the profile of the aluminum ribbed plate is usually longitudinally arranged.
The longitudinal arrangement is suitable for the main hull as well as for the superstructure.
Aluminum alloy extrusion ribbed sheets welding standard
The geometric accuracy of the ribbed plate structure is high
This is due to the construction of the cross section and its positioning is determined by the extrusion mold, rather than the traditional plate by manual welding. As a result, the plane of the aluminum ribbed plate is close to the geometric plane, which makes the overall stability and local stability much higher than that of the traditional plate.
Give the superstructure a smooth appearance of the thin-walled structure. In the traditional plate, even the measures to control the welding deformation and the after welding correction process can not reach the extent of the aluminum rib plate at any rate. The connection between the profile and the plate is an arc transition, which can be considered as no stress concentration. This is not what a traditional plate can do.
The residual stress of aluminum ribbed plate structure is very small
The study on aluminum alloy structures by the Committee on light alloy of the European Commission Steel Structure (ECCS) shows that the influence of residual compressive stress on aluminum alloy plate end steel structures. However, through further processing, the stability of aluminum rib plate has been improved both in construction and in use.
Marine grade aluminum ribbed plate makes the structure weld less
A large number of welds are not used to link plain longitudinal sections with aluminum ribbed sheets plates. The decrease of welding seam will inevitably reduce the amount of welding operation. The number of welds decreases, the welding deformation decreases correspondingly, and the amount of deformation after welding is greatly reduced.
Improve the macro benefits of shipbuilding, extend the ship maintenance service period and increase the total service period
Chalco is a certified supplier of marine grade aluminum. It has a history of many years in this field, and has rapidly grown into one of the world's largest manufacturers and exporters of marine aluminum plates. Obtain the "World License" for marine aluminum plate.
We provide the broadest range of marine grade aluminum plates, which have been used for various ships ranging from small yachts to tens of tons of cruise ships. The products are widely used in ship deck, side, bottom, hull, deck, keel, chimney and other parts. It can meet any shipbuilding needs.
Chalco's complete production line has greatly increased the output of marine aluminum plates, providing a solid foundation for large-scale production of aluminum plates.
Introduce the 3000T tensile machine, the most advanced equipment in the world. It can be used to conduct 1.0% - 3.0% permanent tensile plastic deformation of the plate within the specified time according to the process requirements. Through the transition from elastic deformation to plastic deformation, the residual internal stress after quenching is eliminated to ensure that the product does not deform during processing.
With strong production capacity, we can accept orders of 8-5000 tons and deliver goods in 7-35 days. We can also provide you with the best aluminum price according to our strong supply capacity.
Chalco marine aluminum plates are free of oil spots, ripples and scratches.
Chalco marine aluminum plate has no burr, no rolling mark on the surface of marine aluminum plate, and the trimming is neat.
Chalco adopts advanced production technology to reduce the tendency of ingot cracking and improve the surface quality of rolled plate.
If you have a demand for marine aluminum plates, please click the contact information below to contact us to obtain quotations and samples. We will provide you with the best quality products and the most competitive prices in the market.
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