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Grade 21 - titanium Ti-15Mo-2.7 Nb-3Al-0.25 Si round bar, sheet
Supplier — AvekGlob company offers to buy at affordable prices from the manufacturer a circle, bar or wire that are made of titanium alloy of the brand Ti-15Mo-2.7Nb-3Al-0.25Sigrade 21. The supplier guarantees the prompt delivery of rolled metal to any address specified by the consumer /
Technical specifications
Titanium grade Ti-15Mo-2.7Nb-3Al-0.25Si grade 21 is an alloy with increased resistance to oxidation at high creep resistance. The material is also ideally suited for the production of metal matrix composites, since it can be economically rolled to foil and compatible with most fibers.
Urgency of application
Because the alloy in question is highly resistant to hydraulic fluid in aircraft at all temperatures, it is ideally suited for use in aerospace engines and components. Circle, bar or wire, which are made of Ti-15Mo-2.7Nb-3Al-0.25Si grade 21 titanium alloy, are used for the production of normalized products — pins, fasteners, and parts operating under alternating loads not exceeding the limit fluidity.
Chemical composition of the alloy
The following are the data that meet the technical requirements of the UNS R58210 standard:
| Element | Content in alloy (%) |
| Titanium, Ti | 76 — 80.8 |
| Molybdenum, Mo | 14 — 16 |
| Aluminum, Al | 2.5 — 3.5 |
| Niobium, Nb | 2.4 — 3.2 |
| Iron, Fe | Not more than 0.40 |
| Silicon, Si | 0.15 — 0.25 |
| Bound oxygen, O | 0.11 — 0.17 |
| Carbon, C | Not more than 0.050 |
| Bound nitrogen, N | Not more than 0.050 |
| Bound hydrogen, H | Not more than 0.015 |
Physical and mechanical properties
Density, kg / m 3 — 4940;
Melting point, 0 С — 1665;
The coefficient of thermal conductivity in the temperature range 20… 100 0 С, W / mgrad — 7,07;
The coefficient of thermal expansion in the temperature range 20… 100 0 С, m / deg — 7,6;
Modulus of elasticity, GPa — 103;
The limit of temporary resistance, MPa — 930;
Yield strength, MPa — 790… 860;
Relative elongation at tension,% — 14;
Hardness in Vickers, HV, no more than 420.
Technological features of material application
The working temperature of the application of products made of grade 21 alloy grade Ti 15Mo 2.7Nb 3Al 0.25Si is from 230 ° C to 600 ° C. Weldability of the material is good.
Areas of use
Products of titanium alloy grade 21 grade Ti 15Mo 2.7Nb 3Al 0.25Si are used in the manufacture of aircraft engine casings, exhaust nozzles and nozzle assemblies in aerospace engineering, as well as in the manufacture of high-strength fasteners and composites having a metal matrix.
Supplier — AvekGlob company proposes to purchase a rod, circle or wire made of grade 21 titanium grade Ti 15Mo 2.7Nb 3Al 0.25Si 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.