Alloy В91 (1913)

Designation

Name The value
Designation GOST Cyrillic В91
Designation GOST Latin B91
Transliteration V91
By chemical elements В91
Name The value
Designation GOST Cyrillic 1913
Designation GOST Latin 1913
Transliteration 1913
By chemical elements 1913

Description

Alloy В91 used: for the production of sheets, extruded sections and forgings; parts aircraft, including seaplanes and wig; building structures.

Note

Corrosion resistant weldable heat-treatable alloy with high strength welded joints (σto20° > 450 MPa, σ0,220° > 350 MPa, σV. SV = 0.9 σin).

Standards

Name Code Standards
Non-ferrous metals, including rare, and their alloys В51 OST 1 90048-90

Chemical composition

Standard Mn Cr Si Fe Cu Al Zn Mg
OST 1 90048-90 0.2-0.5 0.1-0.25 ≤0.3 ≤0.5 0.3-1 Rest 3.7-4.5 1.6-2
Al is the base.
According to OST 1 90048-90 the total mass fraction of other impurities is ≤ 0.10%. In the alloy, chromium can be replaced with zirconium in an amount of 0.10-0.20%.