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Aluminum Roof Coil
The metal and aluminum roof coil  in Litong products are made from the highest quality materials. We require our suppliers to adhere to the strictest standards and use a rigorous qualification process when selecting new sources.
All of our metal roofing coils and sheets are produced from recycled materials, with at least *5% of the raw material coming from post-consumer or post-industrial waste. With our world class paint lines, we maintain fully integrated manufacturing capabilities to ensure the highest level of quality control.
 
Stock strengths of various forms of aluminium range from specification *****0, which has a yield strength of approximately 5,**0 psi, to specification ****-T6, which has a yield strength of approximately *0,**0 psi. (per square inch).
 
The following are some typical applications within these specification ranges -
Utility sheet for all general sheet metal work such as flashings, ductwork, lined walls, etc.
 
*****0 mainly for spinning and drawing operations, e.g. utensils, decorative items, etc.
 
****-H*4 and ****-H*4 are specification alloys for general forming operations.
 
The physical properties of ****-H*4 are similar to those of ****-H*4 with excellent corrosion resistance and a uniform smooth surface finish suitable for anodising. This alloy is suitable for use in curtain walling, decorative trim, control panel boxes and signage.
 
****-H*2 and H*4 are high strength alloys with good forming qualities, particularly suitable for marine applications.
 
****-H**1 and H**3 is an alloy in various states that produces high weld joint efficiency. It is used for tank work, heavy transport, etc. to make the most of its welding properties.
 
****-H*2 is a sister alloy to ***3 and has a low stress corrosion rating when working in the **0°F to **0°F range. Typical applications are truck dump bodies, tanker trucks, exhaust pipes, chemical handling tanks on ships, etc.
 
****-T6 is an excellent general purpose alloy with high strength and good corrosion resistance. It is used in all structural applications such as mining trucks, logging chutes and shipbuilding.
 
Painted aluminium: ***0, ***3, ***5, ***5 and ***2 are just some of the common alloys used in painted products. Painted aluminium has a wide range of mechanical properties and finishes include highly durable exterior coatings, specialised epoxies, polyesters, textured polyesters, fluorocarbons and metals as well as repair primers. Standard colours can be selected or custom colour matching to specification is possible. Most coatings can be used on one and both sides.