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.