Alclad plate

Some of the alloys of aluminum are very useful. Duralumin or dural is an alloy (containing 95.5 /, aluminum, 3% copper, 1% manganese, and 0.5% magnesium) which is stronger and tougher than pure aluminum. It is less resistant to corrosion, however, and often is protected by a coating of pure aluminum. Plate made by rolling a billet of dural sandwiched between and welded to two pieces of pure aluminum is called Alclad plate (Fig. 9.5). 

Al alloy 5052 Al alloy 5056 Al alloy 6061 Al alloy 6063 AlClad alloy 7075 Al alloy 3003 Al alloy 7075 AlClad alloy 2024 Al alloy 2017 Al alloy 2024 Zinc Zn-plated steel Cd-plated steel Low-carbon steel Stainless steel Monel, titanium Lead, copper, brass... 

Aluminum 5052 Aluminum 5056 Aluminum 6061 Aluminum 6063 AlClad 7075 Aluminum 3003 Aluminum 7075 AlClad 2024 Aluminum 2017 Aluminum 2024 Zinc Zinc Plated Steel Cad. Plated Steel Carbon Steel Stainless Steel Monel Titanium Lead Copper Brass... 

Barrier coatings are of two types. The first consists of a thin surface layer of a more resistant metal. This can be accomplished by roll bonding (e.g.. stainless steel to non-heat-treatable aluminum alloys), by chrome plating, or by vapor deposit or ion deposition of a variety of metals. The latter methods are expensive and have size limitations. Unlike Alclad coatings, metal barrier coatings do not provide any electrochemical protection at a break in the coating. 

The most widely used alclad products are sheet and plate, although wire, tube, and other forms are also produced. The most generally accepted method of fabricating alclad sheet and plate consists of hot rolling to pressure weld the cladding slabs to a scalped core ingot In fabricating alclad products, the temperature... 

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