ASME SB338 Ti. Alloy Grade 12 Round Precision Tubes
Oct 21, 2025
GNEE can provide the form
Chemical Composition of Titanium Grade 12
Iron (Fe): 0,30 % max.
Oxygen (O): 0,25 % max.
Nitrogen (N): 0,03 % max.
Carbon (C): 0,08 % max.
Hydrogen (H): 0,015 % max.
Mo: 0,2-0,4 %
Ni: 0,6-0,9 %
Physical Properties of Titanium Grade 12
Density: 4,51 g/cm³
Specific Heat: 0,52 J/(g·K)
Thermal Conductivity: 22,6 W/(m·K)
Modulus of Elasticity: 105 (KN/mm²)
Electrical Resistivity: 0,47 Ω·mm²/m
Thermal Expansion: 8,9 10⁻⁶/K
Beta-Transus Temperature: 890 °C
Mechanical Properties of Titanium Grade 12
Tensile Strength:483 MPa min.
Yield Strength: 345 MPa min.
Elongation: 18 % min.
Heat Treatment of Titanium Grade 12
Annealing (Soft Annealing): 600 – 700 °C
Stress Relief Annealing: 450 – 600 °C
Welding of Titanium Grade 12
MIG (Metal Inert Gas) and TIG (Tungsten Inert Gas) welding with pure argon shielding
Plasma welding
Laser welding
Electron beam welding
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 |
