铝型材的密度只有2.7g/cm3，约为钢、铜或黄铜的密度(分别为7.83g/ cm3，8.93g/ cm3)，的1/3。在大多数环境条件下，包括在空气、水(或盐水)、石油化学和很多化学体系中，铝能显示优良的抗腐蚀性。
The density of aluminium profile is only 2.7g/cm3, which is about 1/3 of that of steel, copper or brass (7.83g/cm3, 8.93g/cm3, respectively). Aluminum exhibits excellent corrosion resistance under most environmental conditions, including in air, water (or brine), Petroleum Chemistry and many chemical systems.
Aluminum profiles are often selected because of their excellent electrical conductivity. On the basis of equal weight, the conductivity of aluminium is nearly twice that of copper.
The thermal conductivity of aluminium alloy is about 50-60% of that of copper, which is beneficial to the manufacture of heat exchangers, evaporators, heating appliances, cooking utensils, as well as the cylinder head and radiator of automobiles.
Aluminum profiles are non-ferromagnetic, which is an important characteristic for the electrical and electronic industries. Aluminum profiles cannot spontaneously ignite, which is important for applications involving handling or contact with flammable and explosive materials.
The machinability of aluminium profile is excellent. In all kinds of deformed and cast aluminium alloys, as well as in all kinds of States after the production of these alloys, www.apsaLu.cn www.hunLiaoji.com.cn www.jnkeqing.cn www.hanyubw.cowww.ccdrc.cn www.bjguomei.cnthe machining characteristics change considerably, which requires special machine tools or technologies.
Specific tensile strength, yield strength, ductility and corresponding work hardening rate control the variation of allowable deformation.
Aluminum has very high recyclability, and the characteristics of recycled aluminium are almost the same as that of primary aluminium.