Molybdenum Rod

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Molybdenum Rod
Posting date : Apr 28, 2010
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Place of Origin Guangdong, China (Mainland) Brand Name GETWICK Model Number Mo1 Mo2 Application lighting, electronics and semiconductor Shape rod, bar Material Molybdenum Dimensions ASTM B378,GB 4188,etc. Chemical Composition Molybdenum Molybdenum content e99.90% Molecular Weight 95.94 EINECS 231-107-2 Melting point 2622 Boiling point 4825 CAS 7439-98-7 Standard ASTM B378 GB 4188 Molybdenum rod Introduction Molybdenums properties include a melting point of 2622 oC, good electrical conductivity and tensile strength at high temperatures, along with low vapor pressure and a low coefficient of thermal expansion. Because of such characteristics, the metal finds wide use in fabricating heating elements, fasteners and structural components for high temperature HIP, vacuum and hydrogen atmosphere furnaces. It is also of value in the lighting, electronics and semiconductor industries. Applications of metal rod include lamp supports, power tube components and silicon rectifier mounts. Standard GB 4188 as follows: Type Application Mo1 electronic vacuum parts,electrode of lamp and gas pipe ,etc. Mo2 electronic valve,Out going line of electric light source,scaffold,connecting rod,etc. Chemical Composition Grade Molybdenum % Other impurities % Each impurity % Mo1 ≥99.93 ≤ 0.07 ≤0.01 Mo2 ≥99.90 ≤ 0.10 ≤0.01 Min Length&Tolerance Dia (mm) Min Length(mm) Dia Tolerance % Ground,mm) 0.8≤d<2.5 1000 ±2 ±0.03 2.5≤d<5.0 800 ±0.1 5.0≤d<8.0 500 ±0.15 8.0≤d<16.0 300 ±2 Diameter Range Type Min Dia Max Dia Black Wroughted 3.0 16.0 Straightened 0.8 3.0 Ground 0.8 12.0 Molybdenum rod is manufactured as random length pieces or cut to customers desired lengths,closer tolerances can be quoted on request. Surface Finish there are three different surface processes or finishes which are provided, depending on the desired end use. Black Surface is as swaged or as drawn; retaining a coating of processing lubricants and oxides. Cleaned - 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.

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