Titanium Grade 5 (Ti-6Al-4V)
UNS R56400
Resumen
The most widely used titanium alloy — accounting for approximately 50% of global titanium consumption. The 6% aluminum and 4% vanadium additions create an alpha-beta alloy with dramatically higher strength than commercially pure grades while retaining excellent corrosion resistance. Heat treatable to even higher strength levels. The standard material for aerospace structures, medical implants, and high-performance marine components.
Composición Química (% en peso)
| Elemento | Mín | Máx |
|---|---|---|
| Ti (Titanio) | 87.7 | 91 |
| Al (Aluminio) | 5.5 | 6.75 |
| V (Vanadio) | 3.5 | 4.5 |
| Fe (Hierro) | — | 0.4 |
| O (Oxígeno) | — | 0.2 |
| C (Carbono) | — | 0.08 |
| N (Nitrógeno) | — | 0.05 |
Propiedades Mecánicas
| Propiedad | Valor | Condición |
|---|---|---|
| Resistencia a la Tracción | ≥ 895 MPa (130 ksi) | recocido |
| Límite Elástico (0.2%) | ≥ 828 MPa (120 ksi) | recocido |
| Elongación | ≥ 10% | recocido |
| Dureza | 30 – 36 HRC | recocido (típico 330 HB) |
| Densidad | 4.43 g/cm³ | — |
Propiedades Físicas
| Propiedad | Valor |
|---|---|
| Punto de Fusión | 1604 – 1660 °C |
| Conductividad Térmica | 6.7 W/m·K (at 20°C) |
| Transus Beta | 995 °C |
Resistencia a la Corrosión
Comparable to Grade 2 in most environments with slightly reduced corrosion resistance in reducing acids due to the vanadium content. Excellent resistance to seawater, chloride solutions, and oxidizing media. Not as formable as Grade 1 or 2 — requires hot working for severe forming operations. The strength-to-corrosion-resistance ratio is unmatched by any other engineering metal.
Aplicaciones Típicas
Normas Relacionadas
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