Titanium Alloys
Titanium Grade 12 (UNS R53400) — Composition, Properties & Supply
Titanium Grade 12 (UNS R53400, equivalent to TA10) replaces precious palladium with 0.3% molybdenum and 0.8% nickel, achieving corrosion resistance close to Grade 7 at lower cost and higher strength than Grade 2 — one of the best value corrosion resistant titanium grades.
What is the chemical composition of Titanium Grade 12?
| Element | Symbol | Content (wt%) |
|---|---|---|
| Ti | Ti | Balance |
| Mo | Mo | 0.20–0.40 |
| Ni | Ni | 0.60–0.90 |
| Fe | Fe | ≤ 0.30 |
| O | O | ≤ 0.25 |
| C | C | ≤ 0.08 |
Values are typical specification limits. Actual heat analysis is reported on the EN 10204 3.1 mill test certificate supplied with each shipment.
What are the mechanical properties of Titanium Grade 12?
| Property | Value | Note |
|---|---|---|
| Tensile strength | ≥ 483 MPa | Room temperature |
| Yield strength (0.2% offset) | ≥ 345 MPa | Room temperature |
| Elongation | ≥ 18 % | Gauge length 50 mm / 4D |
| Hardness | ≤ 180 HB | Brinell / Rockwell |
What are the physical properties of Titanium Grade 12?
| Property | Value |
|---|---|
| Density | 4.51 g/cm³ |
| Melting range | 1630–1670 °C |
| Thermal conductivity | 16.6 W/m·K |
| Elastic modulus | 103 GPa |
| Maximum service temperature | 425 °C |
What are the key characteristics of Titanium Grade 12?
- Mo plus Ni replaces palladium for much lower cost than Grade 7
- Stronger than Grade 2 (tensile ≥ 483 MPa)
- Resists hot-chloride crevice corrosion
- Good weldability and formability
Where is Titanium Grade 12 used?
- Chemical heat exchangers and evaporators
- Desalination and brine equipment
- Petrochemical condensing and cooling systems
- FGD units
Which standards and specifications cover Titanium Grade 12?
What product forms are available?
Frequently asked questions
Can Grade 12 fully replace Grade 7?
In most cases yes — Grade 12 approaches Grade 7 in reducing acids and hot chlorides while being stronger and cheaper. In the most severe high-temperature, high-concentration reducing-acid environments, Grade 7 still has more margin. Evaluate against actual concentration, temperature and crevice conditions.
Need Titanium Grade 12 bar, tube, plate or forgings?
Send the grade, dimensions, standard and quantity. We answer within 10 minutes on working days and quote within 24 hours, with EN 10204 3.1 certification.
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