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Alloy ВМ3

Designation

Name The value
Designation GOST Cyrillic ВМ3
Designation GOST Latin BM3
Transliteration VM3
The chemical elements ВCu3

Description

Alloy ВМ3 used: for the production of ingots-blanks with diameters of 97 and 91 mm, obtained by remelting ingots-electrodes electron-beam melting in a vacuum arc furnace and used for the manufacture of special purpose parts and components of aerospace engineering.

Note

Molybdenum wrought alloy.

Standards

Name Code Standards
Solid alloys, metal-ceramic products and powders, metal В56 TU 14-1-4198-87, TU 14-1-4199-87, TU 14-1-4200-87
Non-ferrous metals, including rare metals, and their alloys В51 TU 48-19-389-84

Chemical composition

Standard C Ti Mo Zn Nb
TU 48-19-389-84 0.2-0.3 0.1-0.4 ≥96.65 0.5-0.85 1.3-1.8
Mo is the basis.
According to TU 48-19-389-84 the chemical composition for the VM-3P alloy obtained by remelting the ingots-electrodes of electron-beam smelting in a vacuum arc furnace is given.

Mechanical characteristics

σB, MPa d y, %
Bars recrystallized in the state of delivery
≥500 2-8 1-40

Description mechanical marks

Name Description
σB Limit short-term strength
d Elongation after rupture
y The relative narrowing

Physical characteristics

Temperature Е, ГПа r, кг/м3
20 330 10220

A description of the physical symbols

Name Description
l Coefficient of thermal conductivity
С Specific heat

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