General characteristics of aluminum: aluminum and aluminum alloy with unique physical and chemical properties. It was a silver-gray appearance, density, small resistivity, linear expansion coefficient. Because aluminum is face-centered cubic structure of Shandong Aluminum square tube suppliers, no allotrope change, no "extension - brittle" change, which has excellent low-temperature toughness at low temperatures to maintain good mechanical properties. In addition, aluminum and aluminum alloy also has excellent corrosion resistance and high specific strength (strength / density), have good heat and light reflectivity. No grinding sparks and non-magnetic. The melting point of aluminum is 660 ℃. The aluminum square tube aluminum alloy with different elements of its containing between 482 ℃ -660 ℃ change its melting point. Aluminum and aluminum alloy is heated from room temperature to dissolve the state, there is no color change, which to judge whether how close to the melting point becomes very difficult. Mechanical properties of aluminum and its alloys with changes in its purity, higher purity, lower strength aluminum square tube supply factory in Jinan, the higher plasticity. Minimum tensile strength as industrial aluminum rolled sheet between 70-110MPa, industrial high tensile strength aluminum only 50MPa, while the tensile strength of aluminum-magnesium alloy in the above 170MPa. Another characteristic of aluminum and aluminum square tube aluminum Shandong supply manufacturers, as the temperature rises, the lower tensile strength; the temperature decreases, the tensile strength is increased, the elongation increases. Jinan aluminum square tube aluminum square tube supply manufacturers _ _ Aluminum rolls provided by Jinan Heshun Aluminum Limited. Jinan Heshun Aluminum Co. (www.jnhsly.com) strong, credible, in Jinan, Shandong aluminum products industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead rolls in aluminum and you hand into the brilliant, for a better future!