Titanium Grade 12 (Ti-0.3Mo-0.8Ni) UNS R53400 heat exchangers pipe
Oct 21, 2025
GNEE can provide the form
Products Description
Designated as UNS R53400, titanium grade 12 has the nominal composition of Ti-0.3Mo-0.8Ni. It's a titanium alloy that may be treated as unalloyed titanium (commercially pure titanium) with minor traces of alloying contents. Compared to commercially pure titanium (grade 1, 2, 3, etc), the nickel and molybdenum alloying contents result in improved strength and better corrosion resistance. Although its corrosion resistance is not as good as grade 7 titanium (titanium-palladium alloy), grade 12 titanium is much more cost-effective. Generally, titanium grade 12 materials are furnished in annealed condition. It is particularly resistant to crevice corrosion in hot brine, however, cautions must be taken when it is used for solutions with pH value less than 3. The microstructure of grade 12 titanium is near α phase, which is either equiaxed or acicular alpha with minor amount of beta.
Titanium grade 12 is primarily used for chemical processing and seawater applications requiring moderate strength and enhanced corrosion resistance such as heat exchangers, pressure vessels, chlorine equipment, nuclear power plant, and salt evaporators. Grade 12 titanium finds its use with media either mildly reducing or vary between oxidizing and reducing.
Chemical Composition Requirements
| C | O | N | H | Fe | Ni | Mo | Ti | *OEE | *OET |
|---|---|---|---|---|---|---|---|---|---|
| ≤ 0.08 | ≤ 0.25 | ≤ 0.03 | ≤ 0.015 | ≤ 0.30 | 0.6~0.9 | 0.2~0.4 | Remaining | ≤ 0.1 | ≤ 0.4 |
Mechanical Properties (Tensile Requirements)
| Tensile Strength, min. ksi [MPa] | Yield Strength, min. ksi [MPa] | Elongation in 2", min. % |
|---|---|---|
| 70 [483] | 50 [345] | 18% |
Product Forms & Standards for Grade 12 Titanium
ASTM B265/ ASME SB-265 Gr.12: plate, sheet, strip.
ASTM B338/ ASME SB-338 Gr.12: seamless or welded tube.
ASTM B348/ ASME SB-348 Gr.12: bar or billet.
ASTM B363/ ASME SB-363 Gr.WPT12: seamless or welded fittings.
ASTM B381/ ASME SB-381 Gr.F12: flanges or other forgings.
ASTM B861/ ASME SB-861 Gr.12: seamless pipe.
ASTM B862/ ASME SB-862 Gr.12: welded pipe.
Allowable Stress for Titanium Grade 12 Materials
| *Temp. | -20~100 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 550 | 600 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| *MAS-1 | 20.0 | 20.0 | 18.7 | 17.4 | 16.2 | 15.2 | 14.3 | 13.6 | 13.1 | 12.7 | 12.3 |
| *MAS-2 | 17.0 | 17.0 | 15.9 | 14.8 | 13.8 | 12.9 | 12.1 | 11.5 | 11.1 | 10.8 | 10.5 |
| *MAS-3 | 29.2 | 29.2 | 26.2 | 23.8 | 21.3 | 18.8 | 16.4 | 14.1 | 12.3 | 10.9 | 10.0 |
| *MAS-4 | 24.8 | 24.8 | 22.3 | 20.2 | 18.1 | 16.0 | 13.9 | 12.0 | 10.5 | 9.3 | 8.5 |
Products provided by GNEE
| Main Product | Common Grades (ASTM) | Standard Specifications | Common Surface Treatment |
|---|---|---|---|
| Titanium Tube (Seamless & Welded) |
Gr1, Gr2, Gr3, Gr7, Gr9, Gr12 | OD: 3mm - 150 mm Wall Thickness: 0.5mm - 10 mm Length: Up to 6000 mm (customizable) Standards: ASTM B337, ASTM B338 |
• Polished (Mirror / Satin) • Pickled • Annealed • Sandblasted |
| Titanium Sheet/Plate (Cold Rolled / Hot Rolled) |
Gr1, Gr2, Gr5 (Ti-6Al-4V), Gr7, Gr9, Gr12 | Thickness: 0.1mm - 50 mm Width: 500mm - 1500 mm Length: 1000mm - 3000 mm Standards: ASTM B265 |
• Polished (No.4, BA, Mirror) • Pickled • Annealed • Sandblasted • Brushed |
| Titanium Wire | Gr1, Gr2, Gr5, Gr7 | Diameter: 0.1mm - 6.0 mm Form: Coil, Straight Length Standards: ASTM B863, F67, F136 |
• Annealed & Pickled • Bright (Clean) • Oxidized |
| Titanium Bar/Rod (Round, Hex, Square) |
Gr1, Gr2, Gr5 (Ti-6Al-4V), Gr7, Gr9, Gr12 | Diameter (Round): 3mm - 200 mm Hex/Square Size: 4mm - 100 mm Length: 1000mm - 3000 mm (or cut-to-size) Standards: ASTM B348 |
• Turned / Peeled • Polished (Centerless Ground) • Annealed • Black Oxide |
| Titanium Foil | Gr1, Gr2,Gr5 (Ti-6Al-4V), Gr7, Gr9, Gr12 | Thickness: 0.03mm - 0.1 mm Width: 50mm - 500 mm Standards: ASTM B265 |
• Bright Annealed (BA) • Cold Rolled |
| Titanium CNC Machining Parts | Gr1, Gr2, Gr5 (Ti-6Al-4V), Gr7, Gr9, Gr12 | Capability: Custom components based on customer drawings. Processes: Milling, Turning, Drilling, Tapping, etc. |
• As-Machined • Deburred • Polished / Tumbled • Anodizing (Color, Black) • Sandblasted • Passivation |
