Aluminium Plate - Aluminium Plate Stock and Alloy Selection Guide from Metalweb


Metalweb is a leading UK aluminium stockholder and aims to provide a 100% on-time delivery and quality product both for day-to-day requirements and long term contracts. We carry out four key roles in the supply chain that help our customers to perform more cost-effectively:

        we hold stock

        we carry out first stage processing

        we have no minimum quantity

        we maintain traceability

To help achieve these roles Metalweb has one of the largest ranges of aluminium products in all alloys (including plate, sheet, bar, tube and other extruded products) carried in stock. This means we can often provide 24 hour delivery with fully certified material when required.

Aluminium Plate

Metalweb can offer aluminium plate from stock in a wide range of sizes, alloys and tempers. These include:

        From as small as 50mm x 30mm in size up to and including 6m x 2m in size

        From 6mm thick to 380mm thick

        Both metric and imperial sizes offered

        Standard alloys stocked including 1050, 2014, 5083, 6082 and 7075

        Specialist alloys stocked including  2024 and 6061

        A range of rolled and cast tooling plates in 5xxx and 7xxx series

        For products less than 6mm thick - we classify this as sheet, so please refer to our sheet section.

Aluminium Processing and Cutting Capabilities

Metalweb has a range of processing & cutting capabilities in order to provide you with the size you need. A large number of our customers look to us to carry out their first stage processing for them as this means they can focus on their area of expertise in more skilled machining and equipment manufacture.

Aluminium Plate Selection Guide

The choice of aluminium plate alloy is determined by what the plate will be used for, how severely it will be formed and what the welding requirements are. Then you can quickly match your application needs with the properties of the commonly available aluminium alloys. You will find below useful descriptions of what each of the alloys can do.

Non-Heat-Treatable Aluminium Alloys

Aluminium Alloys 1050/1080/1200

Aluminium Alloys 1050/1080/1200 are commercially pure aluminium, highly resistant to chemical attack and weathering. They are easily worked and welded, but the lowest strength aluminium. They are also excellent for chemical processing equipment and other uses where product purity is important, and for metal pressings of all types where ductility is critical.

Aluminium Alloy 1350

Aluminium alloy 1350 is the electrical quality alloy not often found in the rolled form, normally rolled to special requirements.

Aluminium Alloy 3003/3103

Aluminium alloys 3003/3103 are stronger than 1200 with same good formability. They offer fine corrosion resistance and weldability. They are often used for storage tanks, chemical equipment, brazing applications, van bodies and cryogenic uses. For higher strength, consider 5251 or 5052.

Aluminium Alloy 5005

Aluminium 5005 is specified for anodised applications to match with 6063 extrusions. Anodised coatings on aluminium 5005 are clearer and lighter than for 3003/3103 in severe drawing applications. Uses of aluminium 5005 are decorative, architectural and consumer products.

Aluminium Alloy 5052/5251/5754

Aluminium 5052/5251/5754 forms readily in the intermediate tempers. Corrosion resistance is very good as is weldability. They offer better salt water corrosion resistance than 1200. They are often used for pressure vessels, tanks, fittings or applications involving forming or welding where strength higher than 3003 is needed, including houseboat hulls, pontoon boats and van bodies. 5052 (2.5% Mag) is commonly used in the USA; 5251 (2% Mag) is largely a 'UK only' standard; whereas 5754 (3% Mag) is the European standard in this range.

Aluminium Alloy 5083

Aluminium 5083 is stronger than either of the above alloys. It is suited to high strength welded applications with outstanding joint strength – rail wagons, marine components, bridges, stationary cryogenic vessels and overhead cranes. Excellent weldability and corrosion resistance. Static welded strength is second only to 5754 and 5083 is superior to 5754 in energy absorption. Restricted to temperatures below 150ºF = 65.5ºC. Aluminium 5083 offer the widest range of plate from stock.

Aluminium Alloy 5086

Aluminium 5086 is excellent for welded structures – ship hulls and superstructures, road tankers, pressure vessels, movable and stationary cryogenic vessels and structures requiring a high rate of energy absorption. It is restricted to temperatures below 150º F = 65.5ºC and is more commonly used in the USA.

Aluminium Alloy 5154

Aluminium 5154 is similar to 5083 which has largely superseded it. It is mainly used on MOD and naval applications.

Aluminium Alloy 5454

Aluminium 5454 is used for all types of welded structures. It is ASME Code approved for temperatures up to 400º F = 204.4ºC and used for hot asphalt road tankers, dump bodies, pressure vessels and marine structures.

Heat-Treatable Aluminium Alloys

Aluminium Alloys 2014/2024

Aluminium alloys 2014/2024 are high strength alloys with excellent machinability widely used in aircraft. They have limited formability and only fair corrosion resistance in the heat treated condition. They are not recommended for fusion welding. They are often used for high strength parts in aircraft and machinery, including gears and bolts and for security vans where strength is critical.

Aluminium Alloys 6082/6061

Aluminium Alloys 6082/6061 are widely used structural alloys for light to medium strength applications. They combine good formability, weldability, corrosion resistance and strength after heat treatment. Since they lose appreciable strength when welded, the 5000 series alloys replace them in some marine applications. Availability of bars, shapes, tubing and pipe in the same alloy helps make this a popular selection. 6082 is the most common heat treated plate from stock. 6061 is more commonly used in the USA.

Aluminium Alloy 7020

Aluminium 7020 is a good machining quality alloy mainly used on the continent instead of 6082.

Aluminium Alloy 7075

Aluminium Alloy 7075 is a very high strength aircraft alloy. It exhibits good machninability and hardness. It is not suitable for welding or corrosion resistance.

Tooling Plate

Cast Plate

A continuous cast plate machined both sides to about 25 microinch finish and thermally stress relieved. It has the best thickness tolerance of any aluminium plate plus maximum stability. It is excellent for precision applications such as electronic base or mounting plates, photo vacuum plates, checking fixtures. Has good welding, anodizing and corrosion resistance properties. No forming. It is usually used in the 6 mm to 30 mm thickness range, but also available up to 150 mm.

Rolled Plate

Aluminium alloy plate, usually in a 5000 series alloy, which has been rolled in the normal way. The plate is subsequently super annealed to provide stability, and then precision face machined to provide close tolerance dimensions. This process is often carried out by processors as well as producing mills, and has a variety of trade or brand names that are often similar or equivalent to each other. This has certain advantages over cast plate in weldability or anodising, but may be less stable.

Aluminium Alloy 5558

Aluminium 5558 is a specialist aluminium alloy rolled plate specifically designed for tooling applications particularly in machine beds or jigs. This alloy has all the characteristics of 5083 in welding, polishing and anodising but has the machinability of 6082. A full range of thicknesses from 6 mm to 300 mm are available.

Mould Plate

Mould plate is a rolled tooling plate. This is generally made to rolling mills house specifications. It is not as stable as cast tooling plate but gives much better life in highly machined components. Its porosity free characteristics make it ideal for plastic injection moulds. Most commonly used in the 100 mm to 250 mm thickness range, but some mills can produce up to 400 mm thick.

Source: MetalWeb

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