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GOST 18905-73. Molybdenum wire. Assortment.

GOST 18905-73. Molybdenum wire. Assortment.

You are interested in GOST 18905−73. «Molybdenum wire. Assortment «from the supplier company AvecGlob? Here you will find interesting information on this topic.

Application area

The effect of this standard extends to drawn wire made of molybdenum, manufactured by the powder metallurgy method, which is used in the manufacture of electronic devices and light sources.

Technical requirements

The diameter of the wire and the maximum deviations along it, as well as the permissible deviations in the mass of the length of the wire 200 mm long from the nominal mass, must correspond to those indicated in the table.

                   
Diameter of wire, micron Limit deviation in diameter,%, for precision wire Permissible deviation,%, by weight of a 200 mm length of wire
increased accuracy normal accuracy increased accuracy normal accuracy
From 15 before 19.5 at intervals 0.5 - - ± 3.0 ± 4.0
« 20 « 29.5 Also 0.5 - - ± 2.5 -
« thirty « 39.5 « 0.5 - - ± 1.5 ± 3.0
« 40 « 104.4 « 1.0 - - ± 1.5 ± 3.0
« 105 « 205.0 « 5.0 - - ± 1.5 ± 3.0
« 210 « 400.0 « 10.0 - - ± 1.5 ± 3.0
« 420 « 840.0 « 20.0 ± 1.5 ± 2.5 - -
« 850 « 1550.0 « 50.0 ± 1.5 ± 2.5 - -
« 1600 « 2500.0 « 100.0 ± 1.5 ± 2.5 - -


GOST 18905−73 allows the manufacture of wire with other values of nominal diameters, as well as with other limiting deviations from the nominal diameter.

Supplier — AvecGlob Company — offers at reasonable prices from the manufacturer molybdenum wire of various diameters, which meets the requirements of GOST 18905−73. The supplier guarantees the timely delivery of products to any address specified by the consumer.

Appointment

Specified in the table:

           
The molybdenum-
den		 Group State of surface and metal Diameter, mkm Precision of manufacturing Appointment
MCH A Black From 20 to 2500 Increased, normal Core for the manufacture of spirals of tungsten and its alloys. Hooks, supports, plyuschenka for frame nets, as well as wire mesh with a diameter of more than 150 microns and other details
  B Purified 15 to 1000 Increased, normal Core for making spirals. Hooks of radio tubes
  AT Annealed From 20 to 1000 Increased, normal Various parts of electrovacuum devices
  D Purified, annealed From 20 to 1000 Increased, normal Grids of electronic devices made of wire with a diameter of more than 150 microns, traverses, hooks, plyuschenka, core spirals
  D Annealed From 20 to 1000 Increased Core for manufacturing spirals of tungsten and its alloys
MS A Black 15 to 400 Increased, normal Grids of electronic devices
  B Purified From 20 to 200 Increased, normal  
  AT Annealed From 20 to 200 Increased, normal  
  G, E Purified, annealed From 20 to 200 Increased, normal  
MK A Black 200 to 2500 Increased, normal Junction inputs with quartz and other high-temperature glasses and metallized ceramics, supports and traverses of powerful and some special incandescent lamps, gas discharge cathodes and other parts that must have increased strength after high-temperature processing. It can be used as a core for spiraling tungsten-rhenium alloy wire for titanium-ceramic lamps
  B Purified 200 to 1000 Increased, normal  
  AT Annealed 200 to 1000 Increased, normal  
  D Purified, annealed 200 to 1000 Increased, normal  
MRN A Black 600 to 2500 Increased, normal Conclusions, core for manufacturing spirals from tungsten and its alloys, traverses
  AT Annealed 600 to 1000 Increased, normal Traverses
  D Purified, annealed 600 to 1000 Increased, normal Traverses
  D Annealed 600 to 1000 Increased Core for manufacturing spirals of tungsten and its alloys
IBSC A Black 200 to 500 Increased, normal Grids of electronic devices


Note. The molybdenum wire of the MS group E grade and the MBSC grade is manufactured by the manufacturer’s agreement with the consumer.

The density of the final product after deformation is not less than 10280 kg / m 3 .

Supplier — AvekGlob Company — offers to buy molybdenum wire in a wide range of diameters, unwinding on cassettes, which meets the requirements of GOST 18905−73. Products can be bought at a price formed on the basis of European and world standards of production. Implementation is possible in bulk and retail, for regular customers, a flexible system of discounts operates.