Ti Grade 12
Titanium alloy with 0.3% Mo + 0.8% Ni — improved crevice and reducing-acid corrosion resistance over CP grades. Strength similar to Grade 2 but much better in chemical environments containing hot brines and reducing acids. More cost-effective than Grade 7 (Pd). Used for heat exchangers, pressure vessels, and chemical processing equipment in corrosive service.
International equivalents
| Flag | Standard | Country | Grade | Number | Match |
|---|---|---|---|---|---|
| 🇺🇸 | ASTM | USA | ASTM Grade 12 / UNS R53400 | R53400 | REF |
| 🇺🇸 | UNS | USA | R53400 | R53400 | REF |
Sources: ASTM B265, ASTM B348
Chemical composition comparison (wt%)
Side-by-side: Ti Grade 12 (ASTM) (ASTM B265) vs ASTM (ASTM B265)
| Element | Ti Grade 12 (ASTM) | ASTM | Overlap |
|---|---|---|---|
| C | 0–0.08% | 0–0.08% | OK |
| Mo | 0.2–0.4% | 0.2–0.4% | OK |
| Ni | 0.6–0.9% | 0.6–0.9% | OK |
| Ti | — | — | — |
| N | 0–0.03% | 0–0.03% | OK |
| Fe | 0–0.3% | 0–0.3% | OK |
| O | 0–0.25% | 0–0.25% | OK |
| H | 0–0.015% | 0–0.015% | OK |
Mechanical properties
Annealed
| Property | Value | Unit |
|---|---|---|
| Tensile Strength | ≥ 483 | MPa |
| Yield Strength | ≥ 345 | MPa |
| Elongation | ≥ 18 | % |
| Elastic Modulus | ≥ 103 | GPa |
| Density | ≥ 4.51 | g/cm3 |
Annealed
| Property | Value | Unit |
|---|---|---|
| Tensile Strength | ≥ 480 | MPa |
| Yield Strength Rp0.2 | ≥ 345 | MPa |
| Elongation A | ≥ 18 | % |
General
| Property | Value | Unit |
|---|---|---|
| Density | 4.51 | g/cm³ |
Related materials
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.
Ti Grade 9 / Ti-3Al-2.5V
3.7195Medium-strength alpha-beta titanium alloy — the standard for seamless tubing. 50% stronger than CP Grade 2 with better cold formability than Ti-6Al-4V. The go-to alloy for hydraulic tubing in aerospace and bicycle frames. Used for aircraft hydraulic lines, offshore risers, and sporting goods.
Not sure which material fits?
🤖 Ask AI Advisor →All data is for reference only. Equivalents indicate similarity, not identity. Always verify against the applicable specification for safety-critical applications. materialref.com accepts no liability for decisions based on this data.