Designation
| Name |
The value |
| Designation GOST Cyrillic |
1955 |
| Designation GOST Latin |
1955 |
| Transliteration |
1955 |
| By chemical elements |
1955 |
Description
The 1955 alloy used: for the production of cold-drawn tubes and extruded tubes; parts and pipelines of aviation technology.
Standards
| Name |
Code |
Standards |
| Tubes of non-ferrous metals and alloys |
В64 |
GOST 18475-82, GOST 18482-79, TU 1-3-012-93 |
| Non-ferrous metals, including rare, and their alloys |
В51 |
OST 1 92014-90 |
Chemical composition
| Standard |
Mn |
Cr |
Si |
Ni |
Fe |
Cu |
Al |
Ti |
Zn |
Ce |
Zr |
Mg |
| OST 1 92014-90 |
≤0.2 |
0.08-0.15 |
≤0.3 |
≤0.1 |
≤0.7 |
0.2-0.6 |
Rest |
≤0.1 |
4.6-5.4 |
0.001-0.1 |
0.1-0.22 |
0.7-1.2 |
Al is the base.
According to OST 1 92014-90, the mass fraction of each other impurity (not regulated) ≤ 0.05%, the total mass fraction of other impurities ≤ 0.10%.
Mechanical properties
| Section, mm |
sT|s0,2, MPa |
σU, MPa |
d5, % |
d10 |
| Tubes extruded in the state of delivery according to GOST 18482-79 (samples, in cross-section shows the thickness of the wall) |
| 1.5-10 |
≥147 |
≥235 |
≥10 |
- |
| 1.5-10 |
≥196 |
≥333 |
≥10 |
- |
| Cold-rolled tubes in the delivery condition according to GOST 18475-82 samples (in cross-section of the specified diameter of pipes) |
|
- |
≤245 |
- |
≥10 |
| ≤40 |
≥175 |
≥235 |
- |
≥10 |
| 12-40 |
≥175 |
≥265 |
- |
≥6 |
| ≤40 |
≥195 |
≥335 |
- |
≥10 |
| 12-40 |
≥225 |
≥355 |
- |
≥6 |
| 12-40 |
≥255 |
≥375 |
- |
≥10 |
Description mechanical marks
| Name |
Description |
| sT|s0,2 |
Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2% |
| σU |
Limit short-term strength |
| d5 |
Elongation after rupture |
| d10 |
Elongation after rupture |
