Designation
| Name |
The value |
| Designation GOST Cyrillic |
ПТ-3В |
| Designation GOST Latin |
PT-3B |
| Transliteration |
PT-3V |
| By chemical elements |
ПTe-3В |
Description
Alloy PT-3V is used: for the manufacture of semi-finished products (sheets, strips, foils, strips, plates, bars, rods, profiles, tubes, forgings and forged blanks) by the strain, and bars; products with high strength with sufficient ductility and viscosity, high resistance to small plastic deformation, brittle and fatigue failure, used in mechanical engineering, instrument making and tool industry; rods for use in the shipbuilding industry.
Standards
| Name |
Code |
Standards |
| Non-ferrous metals, including rare, and their alloys |
В51 |
GOST 19807-91, TU 1-5-132-78, TU 1-5-453-78 |
| Steel pipes and fittings to them |
В62 |
GOST 21945-76 |
| Sheets and strips |
В53 |
GOST 23755-79, TU 1-5-110-81, TU 1-5-357-75 |
| Bars |
В55 |
OST 1 92062-90, OST В 5.9325-79, TU 1-5-045-82 |
| Bars and shapes |
В52 |
OST 1 92064-77 |
| Processing of metals by pressure. Forgings |
В03 |
ST ЦКБА 010-2004 |
Chemical composition
| Standard |
C |
Si |
Fe |
N |
Al |
V |
Ti |
O |
Zr |
H |
| GOST 19807-91 |
≤0.1 |
≤0.12 |
≤0.25 |
≤0.04 |
3.5-5 |
1.2-2.5 |
Rest |
≤0.15 |
≤0.3 |
≤0.006 |
Ti is the basis.
According to GOST 19807-91, the total content of other impurities is ≤ 0.30%. The mass fraction of hydrogen is indicated for ingots. In the alloy of PT-3B grade, the mass fraction of zirconium in total with other impurities should not exceed 0.30%. The mass fraction of chromium and manganese should not exceed 0.15% (in total). The mass fraction of copper and nickel should not be more than 0.10% (in total), including nickel not more than 0.08%.
For pipes of group A in accordance with GOST 21945-76, the maximum mass fraction of hydrogen in the alloy is set to 0.005%.
Mechanical properties
| Section, mm |
sT|s0,2, MPa |
σU, MPa |
d5, % |
d |
y, % |
KCU, kJ/m2 |
| The billet according to TU 1-5-132-78. Annealing |
| Образец 15х15 |
≥618 |
686-862 |
≥12 |
- |
≥34 |
≥810 |
| Bars hot rolled for OST 1 92062-9. In the column ssotoyanii delivery is specified as the material of bars in the manufacture of - state material of bars when testing |
| 10-22 |
≥590 |
635-885 |
- |
≥11 |
≥26 |
≥700 |
| Pipe the seamless hot-rolled, heat-treated in the delivery condition according to GOST 21945-76 (samples, in cross-section shows the thickness of the wall) |
| 20 |
≥294 |
≥343 |
≥18 |
- |
- |
- |
| The billet according to TU 1-5-132-78. Annealing |
| Образец 15х15 |
≥294 |
≥343 |
- |
- |
- |
- |
| Bars hot rolled for OST 1 92062-9. In the column ssotoyanii delivery is specified as the material of bars in the manufacture of - state material of bars when testing |
| 10-22 |
≥295 |
≥345 |
- |
- |
- |
- |
| Sheet and plate annealed in delivery condition on the other 1-5-357-75. The bending angle a technology preview for sheets up to 30 mm is 120° |
| 1.2 |
≥589 |
≤883 |
- |
≥18 |
- |
- |
| Bars hot rolled for OST 1 92062-9. In the column ssotoyanii delivery is specified as the material of bars in the manufacture of - state material of bars when testing |
| 25-150 |
≥590 |
635-855 |
- |
≥11 |
≥26 |
≥700 |
| Sheet and plate annealed in delivery condition on the other 1-5-357-75. The bending angle a technology preview for sheets up to 30 mm is 120° |
| 12-14 |
≥589 |
≤883 |
- |
≥10 |
≥25 |
≥687 |
| Bars hot rolled for OST 1 92062-9. In the column ssotoyanii delivery is specified as the material of bars in the manufacture of - state material of bars when testing |
| 25-150 |
≥295 |
≥345 |
- |
- |
- |
- |
| Sheet and plate annealed in delivery condition on the other 1-5-357-75. The bending angle a technology preview for sheets up to 30 mm is 120° |
| 14-18 |
≥589 |
≤834 |
- |
≥10 |
≥25 |
≥687 |
| 18-26 |
≥589 |
≤834 |
- |
≥10 |
≥22 |
≥687 |
| 2-8 |
≥589 |
≤883 |
- |
≥12 |
- |
- |
| 26-60 |
≥589 |
≤834 |
- |
≥10 |
≥20 |
≥687 |
| 8-10 |
≥589 |
≤883 |
- |
≥10 |
≥25 |
- |
| Plate in the delivery condition according to GOST 23755-79. Annealing (samples transverse) |
| 11-14 |
- |
≤880 |
- |
≥10 |
≥25 |
≥588 |
| 14-26 |
- |
≤835 |
- |
≥10 |
≥22 |
≥588 |
| Rolled steel without heat treatment |
|
≥600 |
700-900 |
≥11 |
- |
- |
≥650 |
| Pipe the seamless hot-rolled, heat-treated in the delivery condition according to GOST 21945-76 (samples, in cross-section shows the thickness of the wall) |
| ≤20 |
≥519 |
559-862 |
≥10 |
- |
≥30 |
≥640 |
| 20 |
≥568 |
617-862 |
≥10 |
- |
≥30 |
≥640 |
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 |
| d |
Elongation after rupture |
| y |
The relative narrowing |
| KCU |
Toughness |