VT3-1 circle, bar
International Equivalent
Mark | Analogue | W. Nr. | Aisi Uns | En | Order |
---|---|---|---|---|---|
VT3-1 | Delivery from the stock, in stock |
General Characteristics
Titanium alloys are classified by crystal lattice configuration: α-lattice - in the form of a hexahedron), β - in the form of a cube, α+β - mixed state. Titanium alloy VT3-1 refers to alpha+beta alloys and contains the following alloying elements.
Aluminum | Molybdenum | Copper | Iron | Silicon |
---|---|---|---|---|
6,3% | 2,5% | 1,5% | 0,5% | 0,3% |
Aluminum is the main alloying element in titanium alloys and is present in almost all titanium grades. It is readily available and relatively cheap, its density is less than that of titanium, so the alloy's specific strength increases in total. It hardens the alloy without losing ductility. Increasing aluminum content increases heat resistance and modulus of elasticity, and decreases the tendency to hydrogen embrittlement. Molybdenum increases corrosion and chemical resistance, heat resistance, and inhibits the formation of α-phase during quenching. If the amount of β-stabilizers is large enough, α-phase formation is suppressed without α-stabilizers and neutral hardeners.
WT 3-1 | Wall thickness | Heat treatment | Strength (MPa) | ductility δ% | KCU J/cm³ |
---|---|---|---|---|---|
Bar | 10 - 60 | Annealed | 1000 - 1200 | More than 10% | More than 30 |
- "- | 10 - 60 | Hardening-aging | Over 1200 | Over 6% | Over 30 |
- "- | 65 - 100 | Annealing | 1000 - 1200 | More than 10% | Over 30 |
- "- | 101-130 | Annealing | 950 - 1200 | More than 8% | Over 30 |
Forged bars | 101-250 | Annealing | 950 - 1200 | More than 8% | Over 30 |
Bar | 101-250 | Isothermal annealing | 1080 - 1130 | 12 - 15 | --- |
- "- | 101-250 | Hardening-aging | 1270 | 8 - 11 | --- |
- "- | up to 25 mm | Annealing | 980 - 1230 | More than 10% | Over 30 |
- "- | 14x14 mm | Annealing | 1053 - 2027 | 14 - 16,54 | 47,3 - 62,0 |
- "- | 14x14 mm | Isothermal annealing | 1020 - 1160 | 14 - 20 | 30 - 40 |
- "- | 5 - 10 | Isothermal annealing | 1050 | 14 | 45 |
- "- | 25 | Isothermal annealing | 1030 - 1176 | 15 | 34 |
- "- | 30 | Isothermal annealing | 1058 - 1176 | 12 - 15 | 34 - 44 |
- "- | 50 | Isothermal annealing | 980 - 1030 | 14 - 18 | 41 - 51 |
- "- | 25 | Tempering 850 °C - aging | 1274 | 10 | 30 |
- "- | 25 | 870 °C hardening - aging | 1323 - 1373 | 7 | 20 - 30 |
Bar forged | 35 | Annealed at 879 °C - 650 °C | 1093 | 18,5 | 42 |
Pressed under isothermal conditions | 17 | Annealed 870°C - 650°C | 1152 | 16,8 | 42 |
Pressed rod | 15 | Hardened 870°C | 1075 - 1175 | 12 - 13 | --- |
Pressed rod | 15 | Tempering 870 °C + 500 °C 5 h. | 1270 - 1282 | 8 - 11 | --- |
Pressed rod | 15 | WTMO 500 °C 5 h. | 1390 - 1460 | 6 - 9 | --- |
Rods rolled | 15 | Isothermal annealing | 1166 | 16,5 | --- |
Rolled bars | 15 | Double annealed | 1205 | 14,8 | --- |
Rolled bars | 15 | Hardening-aging | 1352 | 8,0 | --- |
Bar stock with initial coarse-grained lamellar structure | 15 | Annealed at 870 °C, 1 h and 650 °C, 2 h. | 1058 | 8,0 | --- |
Bar stock with initial coarse-grained lamellar structure | 15 | Annealed at 950 °C, 1 h and 650 °C, 2 h. | 1009 | 15 | --- |
The surface of wire, rounds, bars must be free of dark spots, places of unetching. The color must be clear and light, without any tinge of white. The waviness associated with the annealing is not considered defective.
Advantages .
VT3-1 wire, rounds, bars are characterized by corrosion and chemical resistance, high heat resistance, a slight coefficient of thermal expansion, lightness and plasticity. Fatigue resistance depends significantly on the external environment. In a vacuum, titanium alloys exhibit higher endurance than in an air environment. The cyclic endurance of titanium semi-finished products is greatly influenced by the condition and quality of the surface. Surface quality means its roughness, macro- or micrometric roughness, surface condition means structure, physical and mechanical properties of surface layers, which depend on machining mode. The least influence on the endurance limit is exerted by gentle final machining with removal of thin chips to 0.1 mm followed by hand polishing with copper emery to roughness class 8-9. The worst fatigue resistance is observed after abrasive grinding and forced cutting.
Disadvantages
High labor-intensive production and high production costs are considered to be the main disadvantages. It is important to note that the strength properties of alpha+beta titanium alloys are less in the tensile test than in the compression test.
Applications
VT3-1 wire, bars, circles are used for the production of the most critical parts capable of withstanding extreme modes of operation in shipbuilding, aircraft and rocket construction. In chemical, petrochemical or oil and gas industry the corrosion resistance and acid resistance of the alloy are of crucial importance, while in food industry, agriculture, medicine - biological inertness.
Supply
All the rolled steel produced is certified. The technical documentation includes data on the chemical composition, the limiting percentage of impurities and mechanical properties of products. From us you can buy in bulk any semi-finished products for large-scale production. We also offer optimum conditions for retail buyers. The high level of service and responsiveness of service is the face of our company.
Buy at a bargain price
The website of Evek GmbH reflects the most up-to-date information on purchasing titanium alloys to date. Experienced managers who are always in touch are ready to provide highly qualified consulting assistance on any current issues. We sell semi-finished products of rare and non-ferrous alloys at a competitive price. Products are manufactured on the most modern equipment and meet the requirements of international quality standards. Regular customers are offered a system of discount discounts.