Alloy ВТ4
Designation
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.
| Name | The value | 
|---|---|
| Designation GOST Cyrillic | ВТ4 | 
| Designation GOST Latin | BT4 | 
| Transliteration | VT4 | 
| By chemical elements | ВTe4 | 
Alloy ВТ4 used: for the production of parts for various purposes, operating at temperatures up to 400 °C.
Alloy with high corrosion resistance.
| Name | Code | Standards | 
|---|---|---|
| Non-ferrous metals, including rare, and their alloys | В51 | OST 1 90000-70 | 
| Bars | В55 | OST 1 90107-73 | 
| Sheets and strips | В53 | TU 14-1-3444-82 | 
| Section, mm | σU, MPa | d5, % | y, % | KCU, kJ/m2 | HB, 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 | |
| Name | Description | 
|---|---|
| σU | Limit short-term strength | 
| d5 | Elongation after rupture | 
| y | The relative narrowing | 
| KCU | Toughness | 
| HB | Brinell hardness number | 
