Titanium Alloys - Ti0.3Mo0.8Ni Grade 12 alloy seamless pipe
Oct 21, 2025
GNEE can provide the form
Products Description
Grade 12 titanium alloy seamless pipe is a highly weldable, near-alpha titanium alloy that exhibits higher strength at elevated temperatures and optimal ASMA specification design allowable values, and has excellent resistance to crevice corrosion in oxidizing to slightly reducing conditions, particularly chloride conditions.
Composition
|
Content |
|
|
C |
<0.08% |
|
N2 |
<0.03% |
|
Fe |
<0.3% |
|
H2 |
<0.015% |
|
O2 |
<0.25% |
|
Mo |
0.2-0.4% |
|
Ni |
0.6-0.9% |
|
Ti |
Balance |
Designations
Other designations for Ti3Al2.5 include:
• ASTM B265 Gr12
• ASTM B348 Gr12
• ASTM B337 Gr12
• ASTM B338 Gr12
• ASTM B381 Gr12
• ASTM B467 Gr12
• ASTM F468 Gr12
Physical Properties
|
Property |
Typical Value |
|
Density g/cm3 (lb/ cu in) |
4.51 (0.162) |
|
Specific Heat (J/g.K) |
0.54 |
|
Volume Electrical Resistivity ohm.cm (ohm.in) |
41 (20) |
|
Thermal Conductivity W/m.K (BTU/ft.h.°F) |
21 (146) |
|
Mean Co-Efficient of Thermal Expansion 0-100°C /°C |
9.5x10-6 |
|
Beta Transus °C±15°C (°F) |
888 (1630) |
Fabrication
• Weldability – Good
• Annealing – 732-816°C (1350-1500°F)
• Stress Relief Annealing – 538-649°C (1000-1200°F), 1 hr, AC.
Mechanical Properties
|
Property |
Minimum |
Typical Value |
|
Tensile Strength MPa (ksi) |
483 (70) |
607 (88) |
|
0.2% Proof Stress MPa (ksi) |
345 (50) |
462 (67) |
|
Elongation Over 2 Inches % |
18 |
22 |
|
Reduction in Area (%) |
25 |
|
|
Elastic Modulus GPa (msi) |
103 (15) |
|
|
Hardness BHn |
103 (315) |
|
|
Specified Bend Radius <0.070 in x Thickness |
2.0 |
2.5 |
|
Welded Bend Radium x Thickness |
14 (10) |
|
|
Stress Rupture MPa (1000hr's at (250°C) |
297 |
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 |
