Ti-6Al-4V (Grade 5)
3.7164The most widely used titanium alloy — accounts for ~50% of all titanium production. Alpha-beta alloy with exceptional strength-to-weight ratio. Used for jet engine components, airframe structures, medical implants (hip/knee), fasteners, and racing components. Biocompatible.
International equivalents
| Flag | Standard | Country | Grade | Number | Match |
|---|---|---|---|---|---|
| 🇺🇸 | ASTM | USA | Grade 5 / UNS R56400 | R56400 | REF |
| 🇪🇺 | EN | Europe | TiAl6V4 | 3.7164 | 100% |
| 🇺🇸 | AMS | USA | AMS 4911 | — | 100% |
| 🇯🇵 | JIS | Japan | TAB6400 | — | 98% |
| 🇷🇺 | GOST | Russia | VT6 | — | 93% |
Sources: ASTM B265, EN 3468, AMS 4911, JIS H4600, GOST 19807
Mechanical properties
Compatibility verdict
Ti-6Al-4V (Grade 5) and TAB6400: 98% composition match
Related materials
Titanium Grade 2 (CP)
3.7035The workhorse commercially pure titanium grade. Best balance of strength, ductility, and corrosion resistance among CP grades. Excellent resistance to seawater, chlorides, and oxidizing acids. Used for heat exchangers, chemical processing, marine hardware, desalination, and medical implants.
Titanium Grade 1
3.7025The softest and most ductile commercially pure titanium grade. Lowest O content (0.18% max) for maximum formability. Used for plate heat exchangers, chemical plant vessels, explosive cladding, deep-drawn parts, and anodizing applications. Lower strength than Grade 2 but superior formability.
Titanium Grade 4
3.7065The strongest commercially pure titanium grade. Highest oxygen content (0.40% max) for maximum strength among CP grades. UTS min 550 MPa — approaches some Ti alloys. Used for airframe skins, marine hardware, surgical implants, and chemical plant components requiring higher strength than Grade 2.
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