Metal chromium is mainly used in the production of nickel base, cobalt base high temperature alloy, aluminum alloy, titanium alloy, resistance alloy, corrosion resistant alloy, iron base heat resistant alloy and stainless steel. There are two kinds of industrial production of metal chromium, one is thermite chromium, block, silver bright color, metallic luster, containing Cr98%, according to the use of impurities have different requirements; The other is electrolytic chromium, sheet shape, dark brown surface, after hydrogen refining surface bright, containing Cr99%.
Cobalt - main uses The metal cobalt is mainly used in alloys. Cobalt-based alloys are a general term for alloys made of cobalt and one or more of the chromium, tungsten, iron, and nickel groups. The wear resistance and cutting performance of tool steel with a certain amount of cobalt can be significantly improved. Stalit cemented carbides containing more than 50% cobalt do not lose their original hardness even when heated to 1000℃. Today, this kind of cemented carbides has become the most important material for the use of gold-bearing cutting tools and aluminum. In this material, cobalt binds together grains of other metallic carbides in the alloy’s composition, making the alloy more ductile and less sensitive to impact. The alloy is welded to the surface of the part,increasing the life of the part by 3 to 7 times.
Tungsten can form dispersed carbide phase in steel, refine grain, increase hardness at high temperature, and improve toughness, corrosion resistance and wear resistance of steel. Tungsten is the main alloying element of high-speed tool steel, alloy structural steel, spring steel, heat resistant steel and stainless steel, and a large amount of tungsten is used in the production of special steel.
Molybdenum bars are mainly used in the steel industry, to make a better stainless steel. Molybdenum as an alloying element of steel can increase the strength of steel, it is added to stainless steels to increase corrosion resistance. About 10 per cent of stainless-steel production contains molybdenum, of which the content averages about 2 per cent. Traditionally the most important moly-grade stainless steel is the austenitic type 316(18% Cr, 10% Ni and 2 or 2.5% Mo), which represent about 7 per cent of global stainless steel production.
Indium is a very soft, silvery-white, relatively rare true metal with a bright luster. Like gallium, indium is able to wet glass. Indium has a low melting point, compared to those of most other metals.
Main Applications Indium's current primary application is to form transparent electrodes from indium tin oxide in liquid crystal displays and touchscreens, and this use largely determines its global mining production. It is widely used in thin-films to form lubricated layers. It is also used for making particularly low melting point alloys, and is a component in some lead-free solders.
Tin ingots is a commercial tin cast into an ingot that has been partially refined but also contains small amounts of various impurities (such as copper, lead, iron or arsenic) and is a solid tin that is distinct from tin plate. It can be used as a coating material and has a wide range of uses in food, machinery, electrical appliances, automobiles, aerospace and other industrial sectors.
The melting point of niobium metal is 2468°C. Niobium has the characteristics of corrosion resistance, high temperature resistance and good ductility.
Main use: Additives for the production of niobium-based alloys, superconducting materials, superalloys, special alloys, raw materials for electron bombardment of niobium ingots, etc.
Specifications: block 30×(30-50)×(30-50) mm, packing: 50Kg per barrel in iron drum.
