Titanium Grade 11
Aurico Alloys LLP supplies Titanium Grade 11 as sheet, plate, foil and round bar, from Mumbai, India, with EN 10204 3.1 mill test certificates.
Titanium Grade 11 (UNS R52250) is commercially pure titanium carrying 0.12-0.25% palladium. The palladium is what the grade is bought for: it lifts resistance to crevice attack and to reducing acids — hydrochloric, sulphuric and phosphoric — in which unalloyed titanium is vulnerable. Its oxygen and iron limits are those of Grade 1, so it keeps that grade's low strength and high formability rather than trading them away for the corrosion performance.
Key Properties
- Palladium-stabilised. 0.12-0.25% Pd is the only intentional addition to an otherwise commercially pure composition.
- Crevice corrosion resistance in reducing acids and hot chlorides, the service in which unalloyed Grades 1 and 2 are attacked.
- Grade 1 base chemistry. Oxygen to 0.18% and iron to 0.20%, so it is the most formable of the palladium-bearing grades.
- Grade 7 is the stronger alternative — the same palladium addition on a Grade 2 base, where strength matters more than forming.
Applications
- Chlorate and chlor-alkali cell hardware
- Chemical process equipment in reducing acid service
- Heat exchangers and desalination plant handling hot brine
- Formed and welded linings where ductility matters more than strength
Available Forms
- Titanium Grade 11 Foil
- Titanium Grade 11 Round Bars
- Titanium Grade 11 Sheets
- Titanium Grade 11 Plates
Equivalent Grades & Standards
| Property | Value |
|---|---|
| UNS number | R52250 |
| Density | 4.51 g/cm3 |
| Melting range | 1650 °C |
| Modulus of elasticity | 15 × 10⁶ psi |
| Beta transus | 1635-1735 °F (ATI range for grades 1-4 7 11 12 and 16-18 (± 25 °F)) |
| Thermal conductivity | 13-10 Btu/ft·h·°F (ATI range for grades 1-4 7 11 12 and 16-18) |
| Coefficient of expansion (32-600 °F) | 5.1 µin/in·°F |
Identifiers and physical constants for Titanium Grade 11. A dash means no such designation is published for this grade.
Specifications by Product Form
Titanium Grade 11 (R52250) is supplied to a different standard in each form. Quote the one that matches the product you are ordering.
| Product form | Specification |
|---|---|
| Plate, sheet and strip | ASTM B265 |
| Rod and bar | ASTM B348 |
| Wire | ASTM B863 |
| Pipe and tube | ASTM B338 / B861 |
| Fittings | ASTM B363 |
Contact us for stock availability and pricing.