Most tungsten concentrates are processed chemically to ammonium paratungstate (APT). Secondary raw materials like (oxidized) scrap and residues are another important feed for chemical tungsten process
Since the introduction of titanium and titanium alloys in the early 1950s, these materials have in a relatively short time become backbone materials for the aerospace, energy, and chemical industries.
According to the China Defense Science and Technology Information Network reported that the US is expected to develop a new tungsten-chrome-ferro(WcrFe) alloy for armor-piercing to replace the deplete
Supported by the price of raw materials, ferro molybdenum market spot prices down, getting goods more difficult and limited bargaining space.
The ability of molybdenum to withstand extreme temperatures without significantly expanding or softening makes it useful in applications that involve intense heat, including the manufacture of armor,
The refractory metals are conveniently described as those which, first of all, melt at temperatures well above the melting points of the common alloying bases, iron, cobalt, and nickel.