Purity and environmental conditions the corrosion resistance of aluminum alloy aluminum depends on: 1, so that the corrosion resistance of copper impurities in aluminum to reduce its impact than iron, silicon serious. Aluminum containing 0.1% copper, the corrosion rate of iron than 0.1% of 10 times. Aluminum alloy of iron is greater than 0.1%, the corrosion rate of 99.998% high purity aluminum bigger than 160 times. 2, in the general atmosphere, aluminum alloy with good corrosion resistance. But when contains large amounts of sulfur dioxide, hydrogen sulfide, acid, alkali and other gases in the atmosphere, where to purchase cheap Jinan five checkered, in wet weather, the surface will form an electrolyte aluminum alloy five checkered, causing electrochemical corrosion. When the aluminum alloy surface defects, creases, scarring, copper particles, etc. attached, it will form a strong corrosion center column. When exposure to copper, lime and other fouling can cause corrosion when installing wound. Practice has proved that the wires and components made of aluminum in the atmosphere, the corrosion resistance of copper similar, but directly buried in soil or water, its corrosion resistance is far lower than copper. According to different aluminum content of alloying elements can be divided into eight series were 1 *** Which Jinan five checkered good quality, 2 *** 3 *** 4 *** 5 *** 6 ** * .7 8 *** *** 1-8 series aluminum uses introduction: 5 ××× series of aluminum plates 5 ××× series aluminum sheet: representative 5052,5005,5083,5A05 series. 5 ××× series aluminum alloys are more commonly used aluminum series, the main elements of magnesium, magnesium content between 3-5%. Also known as Al-Mg alloys. The main features of the low-density, high tensile strength, elongation. In the same area under the weight of aluminum-magnesium alloy is lower than other series. So commonly used in aviation, such as aircraft fuel tank. In conventional industrial applications more widely. The process of casting and rolling, it can do is hot-rolled aluminum oxide processing. In China 5 ××× series aluminum is one of the more mature series aluminum. Which five good quality checkered | rolls Aluminum | five checkered provided by Jinan Heshun Aluminium Limited. Jinan Heshun Aluminum Co. (www.jnhsly.com) Shandong Jinan, aluminum products leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Aluminum leadership in cis with the staff warmly welcome all inquiries negotiations to create a better future for aluminum rolls.