Base metals

Tungsten
Tungsten is a dense, steel-gray to white transition metal. It has the highest melting point and lowest vapor pressure of all metals. When alloyed with other metals, it increases the metal’s hardness, corrosion-resistance and durability. Approximately 50% of mined tungsten goes to tool making and machinery, 25% to electronics and 10% for use in artillery armaments. 

Molybdenum
Molybdenum is a silvery white, hard transition metal, mainly used in the steel making industry. It is frequently used in alloy and stainless steels. Its addition enhances the performance of materials under high-stress conditions within an expanded temperature range, and in highly corrosive environments. Molybdenum is also used in catalysts and lubricants.