Pure molybdenum can be presented in many types. Molybdenum bar is one popular product made of molybdenum. Therefore, molybdenum bar shares the properties of molybdenum, which are high melting point, good thermal conductivity and low thermal expansion. At high temperature, they can resist oxidation and have high strength without any distortion during the procession, etc.
The surface condition of molybdenum bar can be bright and shiny, besides some of it is permitted with oxidation. Always, the color is silver-grey.
Black - Surface is black retaining a coating of processing lubricants and oxides.
Bright - Surface is chemically cleaned to remove all lubricants and oxides.
Ground - Surface is centerless ground to remove all coating and to achieve precise diameter control
Molybdenum bar is also different from perspectives of conventional molybdenum bars, high temperature molybdenum bars, molybdenum bars for steel smelting in density, dimension and application. Following is a table to show them in detail.
|Conventional molybdenum bars
||Square 15 x 15 x 600
Round Dia17 x 350
||Pure molybdenum bars for drawing normal molybdenum wire
|High temperature molybdenum bars
||Raw material for molybdenum wire in electrical light sources and rods
||Dia(16.5-18) x (350-450)
|Molybdenum bars for steel smelting
||20 x 20 x 600
||With high purity, it is used as additives in steel smelting.
Molybdenum bar is mainly used in drawing thin molybdenum wire, molybdenum electrode and steel-making additives.