Molybdenum thread

International Equivalent

Mark Analogue W. Nr. Aisi Uns En Order
MK MoSi0.03 Delivery from the stock, in stock

Advantages

Molybdenum filament has unique qualities. It is resistant to aggressive media, withstands very high temperatures of up to 1800 °C in a vacuum, and is almost twice as light as tungsten filament, so it has a high specific strength of up toIt has a high modulus of elasticity and a low thermal expansion coefficient, identical to glass, so that molybdenum filament can be used for electric current input in vacuum devices. This filament is not as fragile as tungsten filament, produced with less technological effort.

Disadvantages

Such filament has a high cost: molybdenum is difficult enough to isolate in pure form, it is hard, refractory and difficult to process. However, reliability and extraordinary qualities of molybdenum thread fully recoup all the costs.

Production

Molybdenum wire Ø 1-10 mm is first produced by rolling hot billets in a rotary forging machine. The wire is then drawn into a very fine filament. The wire can be made either from pure molybdenum in Molybdenum and Molybdenum alloys, or with the addition of cobalt or chromium. In this case its manufacturability and strength increase. From 1 gram of molybdenum is rolled into a thread over three meters long.

Grade Group Ø in mm Tensile strength kgf/mm² Tensile strength kg/mg/200 mm
MK А 0,2 - 0,5 121 60
MC-K A, B 0,015 - 0,07 173, 85
MSH-K A, B 0,071 - 0,09 163 80
MSH-K A, B 0,091 - 0,2 142 70
MSH-KS А 0,015 - 0,07 152 75
MF-CS А 0,071 - 0,09 142 70
MF-CS А 0,091 - 0,2 121 60

Applications

Molybdenum filament is used in lighting devices. Depending on diameter and surface condition, spiral and non-spiral cathodes, grids, springs, loop heaters of electronic devices, springs of semiconductor devices are produced. They also make bushings, traverses, and those parts of devices that do not require tungsten alloys.

Buy at the best price

Evek GmbH has a wide range of rare and refractory metal products in stock. We supply molybdenum filament and molybdenum wire wholesale and retail at optimal prices. On our site you will find all the information you need, Technological completion of each stage of production allows for individual orders, if the basic execution of products you are not satisfied. We carry out quality orders of non-standard parameters, the timing of their implementation is minimal. In case of bulk purchases we provide discounts.