Sponge titanium is the raw material for titanium processing materials. Generally, it is a light gray particle with a clean surface and no visible inclusions. It also includes defective sponge titanium blocks, such as burnt sponge titanium blocks, oxidized sponge titanium blocks with obvious dark yellow and bright yellow marks, oxidized and nitrogen rich sponge titanium blocks with dark yellow and bright yellow traces, sponge titanium blocks with obvious chloride residues, and sponge titanium blocks with residues.
Sponge like titanium metal produced by metal thermal reduction method. The purity (mass) is generally between 99.1% and 99.7%. The total amount of impurity elements (mass) is 0.3-0.9, the oxygen content of impurity elements (mass) is 0.06-0.20, and the hardness (HB) is 100-157. It is divided into five grades from WHTiO to MHTi4 according to different purities. The main raw material for producing industrial titanium alloys. Sponge titanium production is the fundamental link in the titanium industry, serving as the raw material for titanium materials, titanium powder, and other titanium components. Transform ilmenite into titanium tetrachloride, then place it in a sealed stainless steel tank, fill it with argon gas, and react it with magnesium metal to obtain "sponge titanium". This porous' sponge titanium 'cannot be used directly, and must be melted into a liquid in an electric furnace before it can be cast into titanium ingots.
