Ti Grade 12 heat exchangers Cold Drawn Pipes
Oct 21, 2025
GNEE can provide the form
Products Description
Ti Grade 12 is a titanium grade alloyed with molybdenum and nickel. It is characterized by excellent corrosion resistance in reducing and oxidizing environments and offers better heat resistance than pure titanium grades. Grade 12 is suitable for applications such as shell and tube heat exchangers and is typically used within, for example, the chemical industries.
Chemical composition
| Fe | O | C | H | N | Mo | Ni |
|---|---|---|---|---|---|---|
| ≤0.30 | ≤0.18 | ≤0.08 | ≤0.015 | ≤0.03 | 0.2 - 0.4 | 0.6 - 0.9 |
Fabrication
Bending
Titanium tubing can be bent at room temperature using standard bend tooling and techniques. When bending thin walled tubing or if a tight bend radius is needed, a mandrel should be used for adequate support of the ID. The mandrel should be well lubricated in order to prevent galling of the ID surface. Due to the moderate strength and low modulus of this alloy, springback is about twice that of stainless steel and must be taken into account.
Roller expansion
Titanium tubing can be roller expanded into tube sheets similar to other tubing materials. The suggested wall reduction for titanium is 10% to provide optimum pull out strength.
Machining and cutting
Machining and cutting titanium tubing is routine when the following procedures are used:
Use low cutting speeds and high feed rates
Use large volumes of coolant
Use sharp tools and replace as soon as worn
Never stop feeding while tool is in contact with workpiece
Mechanical properties
| Ultimate Strength | Yield strength | Elongation 2" | |||
| ksi | MPa | ksi | MPa | ||
| Min | 70 | 483 | 50 | 345 | 18 |
| Max | - | - | - | - | - |
| Typical data | 573 | 421 | 36 | ||
Physical properties
Density 0.162 lbs/in3, 4.51 g/cm3
Melting point
3020°F, 1660°C
Beta transus
1634F, 890°C
Thermal Conductivity
| Temperature, °C | 23 | 50 | 100 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 550 | 600 | 650 | 700 |
| Thermal conductivity, W/mK | 18,1 | 17,5 | 17,0 | 16,6 | 16,3 | 16,1 | 16,1 | 16,2 | 16,3 | 16,4 | 16,5 | 16,7 | 17,1 | 17,7 | 18,3 |
Elastic modulus
The elastic modulus of Cp titanium, as shown below, is roughly one-half that of steel alloys.
| psi | GPa | |
| Tension (E) | 15.0 x 106 | 103 |
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 |
