Ti Grade 7
3.7235Palladium-enhanced commercially pure titanium — the most corrosion-resistant Ti grade. Same mechanical properties as Grade 2, but with 0.12-0.25% Pd for dramatically improved resistance to reducing acids (HCl, H2SO4) and crevice corrosion. Premium price justified only where extreme chemical resistance is needed. Used for chemical processing equipment, desalination plants, and chlor-alkali cells.
International equivalents
| Flag | Standard | Country | Grade | Number | Match |
|---|---|---|---|---|---|
| 🇺🇸 | ASTM | USA | ASTM Grade 7 / UNS R52400 | R52400 | REF |
| 🇪🇺 | EN | Europe | Ti-0.2Pd / 3.7235 | 3.7235 | 100% |
Sources: ASTM B265, EN 10204
Mechanical properties
Compatibility verdict
Ti Grade 7 and Ti-0.2Pd / 3.7235: 100% composition match
Related materials
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.
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.
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