Ost 4.021.027-78. Large-sized rolled bars of titanium alloys.
1. Grades and assortment
1.1 Diameter tolerances and theoretical weight of bars of grade VT1-0, OT4-0, VT3-1, VT5-1.
| rod diameter, mm | Limit deviations, mm | Theoretical mass of 1 m of rod, kg |
| 65 | +2, -3 | 14,922 |
| 70 | --- "--- | 17,318 |
| 75 | --- "--- | 19,879 |
| 80 | --- "--- | 22,620 |
| 90 | ±3,0 | 28,628 |
| 100 | --- "--- | 35,343 |
| 110 | --- "--- | 42,765 |
| 120 | --- "--- | 50,894 |
| 130 | --- "--- | 59,730 |
| 140 | --- "--- | 69,272 |
| 150 | --- "--- | 79,522 |
1.2 The bars shall be manufactured from 500 to 2000 mm in length.
2. basic technical requirements
2.1 The mechanical properties of titanium bars determined on the samples cut out in the grain direction are given below.
| Alloy grade | Material state | Diameter of rod, mm | Tensile strength σB | Relative elongation | Relative narrowing |
Tensile strength, kgf/cm2 | Brinell hardness (diameter) 10/3000 mm | |
|---|---|---|---|---|---|---|---|---|
| VT1-0 | Annealed | 65 to 100 | 40-55 | 20,0 | 50,0 | 10,0 | 4,7-5,2 | |
| over 100 | 36-55 | 17,0 | 32,5 | 5,0 | 4,7-5,2 | |||
| OT4-0 | 65 to 100 | 50-65 | 20,0 | 45,0 | 7,0 | 4,2-4,8 | ||
| over 100 | 45-65 | 17,0 | 30,0 | 5,0 | 4,2-4,8 | |||
| ВТ3-1 | 65 to 100 | 100-120 | 10,0 | 25,0 | 3,0 | 3,2-3,7 | ||
| over 100 | 95-120 | 8,0 | 20,0 | 3,0 | 3,2-3,7 | |||
| VT5-1 | 65 to 100 | 80-100 | 10,0 | 25,0 | 4,0 | 3,4-3,9 | ||
| over 100 | 76-100 | 6,0 | 16,0 | 4,5 | 3,4-3,9 |
2.3 Example of unit designation of a bar made of titanium alloy grade BT5-1, round (cr), hot-rolled, diameter 100 mm:
Supplier
We offer to buy large rolled titanium bar from the specialized warehouses of the supplier Evek GmbH with delivery in any city. Full compliance with OST 4.021.027-78. Supplier Evek GmbH offers to buy large-sized rolled titanium bar, the price is optimal in this segment of rolled products.
Buy, favourable price
We offer large rolled titanium bar OST 4.021.027-78, the price - determined by the technological features of production without including additional costs. Supplier Evek GmbH has placed information on latest product arrivals on our website. Supplier Evek GmbH offers to buy large-sized rolled titanium bar OST 4.021.027-78, the price - optimal from the supplier.
