Alloy VT8-1

Designation

Name The value
Designation GOST Cyrillic ВТ8-1
Designation GOST Latin BT8-1
Transliteration VT8-1
By chemical elements ВTe8-1

Description

Alloy VT8−1 is used: for the manufacture of damage tolerant parts of engines for civil aviation.

Note

Alloy VT8−1 has a high level of heat resistance, crack resistance, thermal stability at temperatures up to 450−500 °C and a low sensitivity to stress concentrators.

Standards

Name Code Standards
Non-ferrous metals, including rare, and their alloys В51 OST 1 90197-89

Mechanical properties

Section, mm σU, MPa d5, % y, % KCU, kJ/m2
Forged discs and shafts after heat treatment OST 1 90197-89 (samples cut in Cordova direction; specified blank weight categories)
≤50 980-1180 ≥10 ≥25 ≥343
Forged discs and shafts after heat treatment OST 1 90197-89
- ≥686 - - -
Forged discs and shafts after heat treatment OST 1 90197-89 (samples cut in Cordova direction; specified blank weight categories)
50-100 980-1180 ≥9 ≥25 ≥343
100-200 960-1160 ≥9 ≥25 ≥343
200-500 940-1140 ≥8 ≥22 ≥343

Description mechanical marks

Name Description
σU Limit short-term strength
d5 Elongation after rupture
y The relative narrowing
KCU Toughness