Designation
| Name |
The value |
| Designation GOST Cyrillic |
ВТ20-2 |
| Designation GOST Latin |
BT20-2 |
| Transliteration |
VT20-2 |
| By chemical elements |
ВTe20-2 |
| Name |
The value |
| Designation GOST Cyrillic |
ВТ20-2св. |
| Designation GOST Latin |
BT20-2cb. |
| Transliteration |
VT20-2sv |
| By chemical elements |
ВTe20-2св. |
Description
Alloy VT20−2 is used: for the manufacture of welding wire diameter 2.0−7.0 mm.
Standards
| Name |
Code |
Standards |
| Welding and cutting metals. Soldering, riveting |
В05 |
OST 1 90015-77 |
Chemical composition
| Standard |
C |
Si |
Fe |
N |
Al |
V |
Ti |
Mo |
O |
Zr |
H |
| OST 1 90015-77 |
≤0.05 |
≤0.1 |
≤0.15 |
≤0.04 |
3.5-4.5 |
0.5-1.5 |
Rest |
0.5-1.5 |
≤0.12 |
1-2 |
≤0.003 |
Ti is the basis.
According to OST 1 90015-77 the chemical composition is given for the alloy VT20-2sv. material of the welding wire. The amount of other impurities is ≤ 0.30%.
Mechanical properties
| Section, mm |
σU, MPa |
d |
| The welding wire in degassed and etched condition delivery |
| 2-7 |
≤834 |
≥10 |
Description mechanical marks
| Name |
Description |
| σU |
Limit short-term strength |
| d |
Elongation after rupture |
