Powder material MV-50A

Designation

Name The value
Designation GOST Cyrillic МКВ-50А
Designation GOST Latin MKB-50A
Transliteration MKV-50A
By chemical elements CuCoВ-50

Description

Powder material MV-50A is used: for the manufacture of parts designed to work in brakes, friction clutches and other friction devices.

Note

Sintered powder material based on iron.
Parts is produced by powder metallurgy, by primechanie to steel base (frame) metal-ceramic friction material.

Standards

Name Code Standards
Hard alloys, ceramic-metal products and metal powder В56 OST 1 90115-74

Chemical composition

Standard C S Si Fe Cu B
OST 1 90115-74 8.5-11 0.6-1.2 3-4.3 Rest 9-11 3-4.3
Fe is the basis.
In addition to the components specified for OST 1 90115-74, asbestos is present in the cermet composition in the amount of 2.50-4.00%.

Technological properties

Name The value
Particularities of production of goods Frames parts with metal-ceramic friction material brand MV-50A shall be made of steel groups 1 and 2 according to GOST 1616523; brand 20KH3MVF (ЭИ415) - according to GOST 20072, grade 30Х2ГСНВМА (ВЛ1-D) - on the other 14-1-711-73.
Properties of the cermet Coefficient of friction - 0,330-0,404; the stability of the coefficient of friction is not less than 0.70; the wear Intensity of metal - not exceeding 12.0 ág/brake; the Intensity of wear of cast iron - not more than 9,0 MK/brake; Rockwell Hardness (ball diameter 1,588 mm at a load of 60 kg) of metal to the machining - 60-100. Properties when working together with metal stamps FMK-845: Coefficient of friction - 0,330-404; the stability of the coefficient of friction is not less than 0.70; the wear Intensity of metal - not more than 16.0 µg/brake; wear of FMK-845 - not exceeding 12.0 ág/brake; Rockwell Hardness (ball diameter 1,588 mm at a load of 60 kg) of metal to the machining - 65-100.