Ost 90013-81. Titanium alloys. Grades.
Relevance
This industry standard OST 90013-81 applies to titanium and titanium alloys, machined by pressure.
Chemical composition
1. Up to 0,3% Al is permitted in BT1-00 technical titanium, and up to 0,7% in BT1-0 technical titanium.
2. In BT5 alloy, molybdenum up to 0,8% and vanadium up to 1,2% shall be allowed.
3. In BT5-1 alloy, vanadium content shall not exceed 1%.
4. Content of aluminum not more than 0,2%, nitrogen - not more than 0,03%, oxygen - not more than 0,12% and hydrogen - not more than 0,0035 is admissible in the technical titanium BT1-00 welding wire.
5. In the alloy VT6, designed for the manufacture of high pressure cylinders and fasteners, aluminum must contain 5.3-6.5%, vanadium 3.5-4.5%, oxygen and iron, respectively, no more: 0.15 and 0.25%.
Alloy of such composition is additionally marked with the letter "C" (BT6C).
In all other cases, the presence of aluminum shall be 5.5-6.8%.
Note. In the manufacture of semi-finished products of grade BT6 providing for a minimum level of temporary resistance of 95 kgf / mm2, allowed the presence of aluminum and vanadium, respectively, no more than 7 and 5.5%.
6. In semi-finished products of alloy VT8, perhaps the presence of up to 7.3% Al, except for blades, disks and blanks for them.
7. In flat rolled grade BT14 up to 10 mm thick, aluminum is contained within 3.5-4.5%, and in other types of semi-finished products - 4.5-6.3%.
8. The percentage of zirconium not exceeding 1.5% is allowed in BT15 grade composition.
9. BT16 alloy semi-finished products intended for the production of fasteners (except rivets) have aluminum content in the range 2.2-3.8%, and in other semi-finished products - 1.8-3.4%.
Note. Alloy designation for rivets is specified in the order.
10. In BT18 alloy, the total molybdenum and niobium content shall be in the range of 0.9-2.1%.
11. In all alloys containing molybdenum as the main component, its partial replacement with tungsten in an amount not exceeding 0.3% is allowed. The total content of molybdenum and tungsten shall not exceed the standards provided in the table for molybdenum.
12. In all alloys that do not contain as main components of chromium and manganese, the latter are allowed in an amount not greater than 0.15% (in total).
13. Titanium and alloys contain copper and nickel in an amount not exceeding 0.10% (total), including nickel not exceeding 0.08%.
16. The chemical composition of titanium and titanium alloys shall be determined according to
In case of disagreement in the assessment of the chemical composition determination is made in accordance with the following State Standards: 19863.0-80; 19863.13-80;
| Mark of the alloy | Titanium | Al | Mn | Mo | V | Zr | Cr | Sn | Si | Fe |
|---|---|---|---|---|---|---|---|---|---|---|
| VT1-00 | basis | - | - | - | - | - | - | - | - | - |
| VT1-0 | Same | - | - | - | - | - | - | - | - | - |
| OT4-1 | " | 1,5-2,5 | 0,7-2,0 | - | - | - | - | - | - | - |
| OT4 | " | 3,5-5,0 | 0,8-2,0 | - | - | - | - | - | - | - |
| VT5-1 | " | 4,3-6,0 | - | - | - | - | - | 2,0-3,0 | - | - |
| ВТ5 | " | 4,5-6,2 | - | - | - | - | - | - | - | - |
| VT3-1 | " | 5,5-7,0 | - | 2,0-3,0 | - | - | 0,8-2,0 | - | 0,15-0,40 | 0,2-0,7 |
| ВТ9 | " | 5,8-7,0 | - | 2,8-3,8 | - | 1,0-2,0 | - | - | 0,20-0,35 | - |
| VT20 | " | 5,5-7,0 | - | 0,5-2,0 | 0,8-2,5 | 1,5-2,5 | - | - | - | - |
Furnizor
We offer to buy titanium alloys from specialized warehouses of the supplier Evek GmbH with delivery in any city. Full compliance with OST 90013-81. The supplier Evek GmbH offers to buy titanium alloys, the price is optimal in this segment of rolled products.
Buy, favorable price.
We offer titanium alloys OST 90013-81, price - determined by the technological features of production without including additional costs. The supplier Evek GmbH has posted information on the latest arrivals of products on the website. Supplier Evek GmbH offers to buy titanium rolled products OST 90013-81, price - optimal from the supplier.
