Designation
| Name |
The value |
| Designation GOST Cyrillic |
ОТ4-2 |
| Designation GOST Latin |
OT4-2 |
| Transliteration |
OT4-2 |
| By chemical elements |
SnTe4-2 |
Description
Alloy OT4−2 is used: for the manufacture of parts and power elements of the constructions made by welding and working for a long time at temperatures up to +400 °C.
Note
High-strength titanium alloy, not hardened by heat treatment. Alloys welded all types of welding and weld strength and ductility approaching that of the base metal.
Standards
| Name |
Code |
Standards |
| Non-ferrous metals, including rare, and their alloys |
В51 |
OST 1 90000-70 |
| Bars and shapes |
В52 |
OST 1 90097-73 |
| Bars |
В55 |
OST 1 90107-73 |
Mechanical properties
| Section, mm |
σU, MPa |
d5, % |
y, % |
KCU, kJ/m2 |
HB, MPa |
| Forgings weighing up to 200 kg after annealing |
| 101-250 |
834-1080 |
≥7 |
≥20 |
≥294 |
255-341 |
| 100 |
932-1080 |
≥8 |
≥25 |
≥294 |
255-341 |
| Forged square bars and round after annealing |
| 140-250 |
834-1030 |
≥7 |
≥20 |
≥294 |
255-341 |
|
853-1030 |
≥7 |
≥22 |
≥294 |
255-341 |
Description mechanical marks
| Name |
Description |
| σU |
Limit short-term strength |
| d5 |
Elongation after rupture |
| y |
The relative narrowing |
| KCU |
Toughness |
| HB |
Brinell hardness number |
