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Molybdenum MK

Designation

Name The value
Designation GOST Cyrillic МК
Designation GOST Latin MK
Transliteration MK
The chemical elements Cu

Description

Molybdenum MK is used: for the manufacture of wire with a diameter of from 200 to 1000 µm, obtained by powder metallurgy and used for the manufacture of parts for various applications in electronic products.

Note

Molybdenum with a silica-doped, characterized by much higher temperature rekristallizatsiya higher tensile strength and bending in the annealed condition, the molybdenum than other brands.

Standards

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

Chemical composition

Standard Si Mo
OST 11 021.004-76 0.02-0.04 ≥99.92
Mo is the basis.
According to the OST 11 021.004-76 chemical composition is given for molybdenum grade MK. The total mass fraction of impurities should not be more than 0.040%. The amount of impurities includes the following elements: calcium, magnesium, 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
200-400 ≥1197 ≥2
400-1000 ≥981 ≥3
200-400 ≥804 ≥2
400-1000 ≥687 ≥3

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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