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Alpha-Beta titanium alloys

Alpha-Beta titanium alloys

Supplier — AvekGlob company offers to buy at affordable prices from manufacturers Alpha-Beta titanium alloys in a wide range of brands and profiles. The supplier guarantees the prompt delivery of products to any address specified by the consumer /

Technical specifications

Alpha-Beta titanium alloys are among the alloys subjected to heat treatment. Most of them have good weldability. Typical properties of such alloys are:

• Strength levels: medium to high;

• average long-term strength / creep resistance (up to 350… 425 0 С): according to this parameter Alpha-Beta, titanium alloys are inferior to Alpha-alloys;

• Good deformability when heated, and limited — in a cold state;

• Most Alpha-Beta titanium alloys support the superplasticity effect.

The most commonly used alpha-beta alloy is the Ti6Al4V alloy, developed in many variants of the basic formula. This allows you to give the material the widest possible choice of key indicators, and expand the scope of its practical use. Ti-6Al-4V is the most popular titanium α-β alloy — its total production accounts for about half of all titanium alloys. Aluminum is added to alloys as an α-phase stabilizer and hardener due to its effect of enhancing the solution. Vanadium stabilizes the viscous β-phase, ensuring the hot machinability of the alloy.

Urgency of application

The main application of parts manufactured from Alpha-Beta titanium alloys is products whose operation requires high corrosion resistance, resistance to erosion phenomena, increased heat capacity and an optimal ratio of strength characteristics to the weight of the structure.

Titanium alloys α-β are used for manufacturing blades of steam turbines, gas and chemical pumps, jet and jet engine parts, pressure vessels, air turbine blades and discs, aviation hydraulic pumps, missile engine housings, cryogenic components, marine components.

The chemical composition of the most common grades of Alpha-Beta titanium alloys

Make O,% Fe,% Al,% V,% Mo,% Sn,% Other,%
Grade 5 (Ti-6Al-4V) Until 0.08 Up to 0.25 5.5−6.75 3.5−4.5 - - -
Ti-6Al-6V-2Sn Until 0.08 0.35−1.0 5.0−6.0 5.0−6.0 - 1.5−2.5 Cu = 0.35−1.0
Ti-6Al-2Sn-4Zr-6Mo Up to 0.5 Up to 0.15 5.5−6.5 - 5.5−6.5 1.75−2.25 Zr = 3.5−4.5
Ti-4Al-4Mo-2Sn 0.16−0.2 Up to 0.20 3.0−5.0 - 3.0−5.0 1.5−2.5 Si = 0.3−0.7

(The percentage of nickel is the rest)

Physical and mechanical properties

For the most used grades of alloys in question, they are summarized in the table:

Alloy name A type Application temperature (° C) Pour point, MPa, at room temperature
Ti-6Al-2Sn-4Zr-2Mo alpha + beta 530 960
Ti-6Al-4V alpha + beta 415 950
Ti-6Al-6V-2Sn alpha + beta 415 1,100
Ti-6Al-2Sn-4Zr-6Mo alpha + beta 490 1,100

Technological features of material application

Alpha-Beta titanium alloys can undergo different types of heat treatment, but aging and annealing are most often used. Most of these alloys are welded, but it is possible to reduce the ductility in the weld zone.

Supplier — AvekGlob Company — offers to purchase in the range of brands and profiles rolled products made of Alpha-Beta titanium alloys, at a price formed on the basis of European and world standards of production. Buy these products can be wholesale and retail. For regular customers, there is a flexible system of discounts.