Fe / Steel

Steel base metal is iron, which is able to take on two crystalline forms (allotropic forms), body centered cubic (BCC) and face centered cubic

AI

Aluminiumis remarkable for its low density and its ability to resist corrosion through the phenomenon of passivation. Aluminium and its alloys are vital to the aerospace industry and important in transportation and building industries, such as building facades and window frames. The oxides and sulfates are the most useful compounds of aluminium

Mg

Cast magnesium alloys are used for many components of modern automobiles have been used in some high-performance vehicles; die-cast magnesium is also used for camera bodies and components in lenses.

Ti

Titanium alloysare metals that contain a mixture of titanium and other chemical elements. Such alloys have very high tensile strength and toughness (even at extreme temperatures). They are light in weight, have extraordinary corrosion resistance and the ability to withstand extreme temperatures.

Cu

Copper is a transition element, chemical symbol Cu, English copper, atomic number 29. Pure copper is a soft metal. When the surface is just cut, it is red-orange with metallic luster, and the element is purple-red. It has good ductility, high thermal conductivity and electrical conductivity, so it is the most commonly used material in cables and electrical and electronic components.