Alloy, MK-5

Designation

Name The value
Designation GOST Cyrillic МК-5
Designation GOST Latin MK-5
Transliteration MK-5
By chemical elements CuCo-5

Description

Alloy, MK-5 is used: for the manufacture of friction pads intended for operation in friction units of machines and transfer devices operating in the oil when sliding speed up to 40 m/sec and pressure on the friction surfaces up to 40 kg/cm2.

Note

Sintered friction material based on copper.

Standards

Name Code Standards
Hard alloys, ceramic-metal products and metal powder В56 TU 14-1-1291-75

Chemical composition

Standard Fe Cu Sn Pb
TU 14-1-1291-75 3-5 Rest 9-11 6-10
Cu is the basis.
In the sintered material MK-5 according to TU 14-1-1291-75, in addition to the specified components, graphite is present in an amount of 6.0-8.0%. By agreement of the parties in the sintered material, the content of tin is 6.0-8.0%.

Technological properties

Name The value
Microstructure On the other 14-1-1291-75 the microstructure of the sintered material is a solid solution of tin and copper with inclusions of graphite, lead, iron and then uniformly distributed across the section.
Particularities of production of goods The hardness of the sintered material on the other 14-1-1291-75 should be in the range of 20-60 kg/mm2.