Aluminium Sheet

Aluminium Sheets are used for Roofing purpose in the construction industry, There are numerous reason to select the aluminium sheets for the roofing purpose, it gives hi life and quality. and comparatively price less

some facts about aluminium sheets

Metal sheets made out of aluminum alloys can be pressed, punched, rolled and formed into airframe sections for for planes.

  • Aluminum designated by the symbol 1100 is used where strength is not an important factor, but where weight economy and corrosion resistance are desired. This aluminum is used for fuel tanks, cowlings, and oil tanks. It is also used for repairing wingtips and tanks. This material is weldable
  • Alloy 3003 is similar to 1100 and is generally used for the same purposes. It contains a small percentage of magnesium and is stronger and harder than 1100 aluminum
  • Alloy 2014 is used for heavy-duty forgings, plates, extrusions for aircraft fittings, wheels, and major structural components. This alloy is often used for applications requiring high strength and hardness, as well as for service at elevated temperatures
  • Alloy 2017 is used for rivets. This material is now in limited use
  • Alloy 2024, with or without Alclad™ coating, is used for aircraft structures, rivets, hardware, machine screw products, and other miscellaneous structural applications. In addition, this alloy is commonly used for heat-treated parts, airfoil and fuselage skins, extrusions, and fittings.
  • Alloy 2025 is used extensively for propeller blades.
  • Alloy 2219 is used for fuel tanks, aircraft skin, and structural components. This material has high fracture toughness and is readily weldable. Alloy 2219 is also highly resistant to stress corrosion cracking.
  • Alloy 5052 is used where good workability, very good corrosion resistance, high fatigue strength, weldability, and moderate static strength are desired. This alloy is used for fuel, hydraulic, and oil lines.
  • Alloy 5056 is used for making rivets and cable sheeting and in applications where aluminum comes into contact with magnesium alloys. Alloy 5056 is generally resistant to the most common forms of corrosion.
  • Alloy 6061 is generally weldable by all commercial procedures and methods. It also maintains acceptable toughness in many cryogenic applications. Alloy 6061 is easily extruded and is commonly used for hydraulic and pneumatic tubing

 

Producing aluminum plate

Rolling begins with preheated sheet ingots that can weigh more than 20 tons. As the size of rolling mills has increased, so has the size of these ingots, but a typical ingot is approximately 6 feet wide, 20 feet long and more than 2 feet thick. The ingot is first heated to rolling temperature and fed into a breakdown mill, where it is rolled back and forth until the thickness has been reduced to just a few inches. The slab can be subsequently cold rolled or may be heat-treated to increase its strength. The highest strength alloys are heat treated and rapidly cooled to room temperature, after which they are stretched to straighten and relieve internal stress built up during rolling and heat-treating. They are aged naturally at room temperature or artificially aged in a furnace to develop the desired combination of strength and corrosion resistance. Finally, the plate is trimmed to final size. Plates produced in this manner may be used at full thickness, but are often machined into a variety of simple to complex shapes.
From plate to sheet and aluminum foil

The production of sheet or foil usually starts out the same way as plate but the slab is further rolled through a continuous mill to reduce thickness and wound into a coil at the end of the line. These coils are subsequently cold rolled, from one to several passes at cold rolling mills. Coils may be heated in a furnace to soften it for further cold rolling or produce the desired mechanical properties. Cold rolling is the last step for some sheet, but other types (referred to as heat-treatable) are subjected to further elevated-temperature processing to increase their strength.
Some sheet and foil products may also be produced using the continuous casting process in which molten metal enters the caster, which produces a hot rolled coil, thus bypassing the ingot casting and hot rolling steps.
Aluminum plate applications

Plate is used in heavy-duty applications such as those found in the aerospace, military and transportation product manufacturing. Aluminum plate, machined to shape, forms the skins of jets and spacecraft fuel tanks. It is used for storage tanks in many industries, in part because some aluminum alloys become tougher at supercold temperatures. This property is especially useful in holding cryogenic (very-low-temperature) materials. Plate is also used to manufacture structural sections for railcars and ships, as well as armor for military vehicles.
Aluminum sheet applications

Sheet, the most widely used form of aluminum, is found in all of the aluminum industry’s major markets. In packaging, sheet is used to manufacture cans and packages. In transportation, aluminum sheet is used to manufacture panels for automobile bodies and tractor trailers. Sheet is used in home appliances and cookware. In building and construction, it is formed into products including siding, gutters, roofing, awnings and carports. Sheet aluminum can be color-anodized to black, gold, red, blue and hundreds of other colors. It can be etched to a matte finish, polished to a sparkling brightness or textured to resemble wood and painted.
Aluminum Makes the Recipe
Recipe success may depend on the use of sheet aluminum. Because some bakeware conducts heat poorly, while others discolor certain food, many recipes specifically recommend the use of aluminum sheets and foil. They are renowned for even heat distribution and durability.