Alloy ВТ4
Designation
| Name |
The value |
| Designation GOST Cyrillic |
ВТ4 |
| Designation GOST Latin |
BT4 |
| Transliteration |
VT4 |
| The chemical elements |
ВTe4 |
Description
Alloy ВТ4 used: for the production of parts for various purposes, operating at temperatures up to 400 °C.
Note
Alloy with high corrosion resistance.
Standards
| Name |
Code |
Standards |
| Non-ferrous metals, including rare metals, and their alloys |
В51 |
OST 1 90000-70 |
| Bars |
В55 |
OST 1 90107-73 |
| Sheets and stripes |
В53 |
TU 14-1-3444-82 |
Mechanical characteristics
| Section, mm |
σB, MPa |
d5, % |
y, % |
kJ/m2, кДж/м2 |
Brinell hardness number, MPa |
| Forgings weighing up to 200 kg after annealing |
| 101-250 |
785-1030 |
≥8 |
≥18 |
≥294 |
241-321 |
| 100 |
834-1030 |
≥10 |
≥30 |
≥343 |
241-321 |
| Forged square bars and round after annealing |
| 140-250 |
785-1030 |
≥8.5 |
≥20 |
≥294 |
241-321 |
|
804-1030 |
≥9 |
≥25 |
≥294 |
241-321 |
Description mechanical marks
| Name |
Description |
| Section |
Section |
| σB |
Limit short-term strength |
| d5 |
Elongation after rupture |
| y |
The relative narrowing |
| kJ/m2 |
Toughness |
