Alloy ВЖЛ18

Designation

Name The value
Designation GOST Cyrillic ВЖЛ18
Designation GOST Latin BZhL18
Transliteration VGL18
By chemical elements ВFeЛ18

Description

Alloy ВЖЛ18 used: for the production of cast bar billets (LPZ), intended for subsequent remelting and casting parts blades and other shaped castings of gas turbine components.

Note

High-temperature casting Nickel-based alloy.

Standards

Name Code Standards
Bars and shapes В32 OST 1 90126-85

Chemical composition

Standard C S P Mn Cr Si Ni Fe Al B Ti Mo Pb Bi Nb W Ce Zr Co
OST 1 90126-85 0.1-0.15 ≤0.015 ≤0.015 ≤0.4 17-18 ≤0.4 Rest ≤1 3.4-4 ≤0.06 2.2-3 4.5-6 ≤0.001 ≤0.0005 1.2-1.8 2.5-4 ≤0.02 ≤0.02 4-6
Ni is the basis.
According to OST 1 90126-85 the chemical composition is given for alloy VZhL18-VI. Boron, cerium and zirconium are introduced by calculation and chemical analysis are not determined. In the alloy, a chromium deflection of minus 0.50% is allowed.

Mechanical properties

Section, mm σU, MPa d5, % y, %
Alloy ВЖЛ18-VI for OST 1 90126-85. Heating to 1170-1190 °C (exposure 3.5 h), air cooling + Ageing at 940-960 °C (speed of 3.5-4.0 h), air cooling
≥880 ≥2 ≥2

Description mechanical marks

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