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Molybdenum MRN

Designation

Name The value
Designation GOST Cyrillic МРН
Designation GOST Latin MPH
Transliteration MRN
The chemical elements CuHgNi

Description

Molybdenum MRN is used: for the manufacture of wire with a diameter from 600 to 1000 µm, obtained by powder metallurgy and used for the manufacture of parts for various applications in electronic products.

Note

Without molybdenum additives. The recrystallization temperature of the molybdenum of this brand are slightly higher than that of molybdenum stamps MCH, due to the larger content of impurities.

Standards

Name Code Standards
Wire of non-ferrous metals and their alloys В74 OST 11 021.004-76

Chemical composition

Standard Mo
OST 11 021.004-76 ≥99.92
Mo is the basis.
According to the OST 11 021.004-76 chemical composition is given for molybdenum MRN. The total mass fraction of impurities should not be more than 0.080%. The amount of impurities includes the following elements: calcium, magnesium, silicon, nickel, iron, aluminum, if they are not additives.

Mechanical characteristics

Section, mm σB, MPa d
Wire as supplied at OST 11 021.004-76. In the column cross-section specified the wire diameter in µm
600-1000 ≥883 -
600-1000 ≥490 ≥2

Description mechanical marks

Name Description
Section Section
σB Limit short-term strength
d Elongation after rupture

Technological properties

Name The value
Features of production For OST 11 021.004-76 wire micron size range comes in the following six groups: A. Wire having on a surface layer of the technological lubricant; B. Wire, free from technological lubricant by electrochemical etching method; B. Wire, annealed to the required mechanical properties, Wire, purified by the method of electrochemical etching and annealed to the required mechanical properties; D. Wire, annealed to the required mechanical properties. Compared to the wire group has higher strength and less elongation; E. Wire, purified by the method of electrochemical etching and annealed to the required mechanical properties. Compared with the wire of the group G has a higher coefficient "K" and a smaller elongation.

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