Quick Answer
What is Grade 3 titanium?
Grade 3 is a medium-strength commercially pure titanium grade containing 99.1% minimum titanium. It occupies the middle ground between the highly formable Grade 1/2 grades and the higher-strength Grade 4. Grade 3 offers a balanced combination of corrosion resistance, moderate strength, and reasonable formability, making it suitable for chemical processing equipment, marine components, and industrial applications where higher strength than Grade 2 is required without the cost of alloy grades.
Chemical Composition
| Element |
Weight % |
| Titanium (Ti) |
balance (≥ 99.1%) |
| Iron (Fe) |
≤ 0.30 |
| Oxygen (O) |
≤ 0.35 |
| Carbon (C) |
≤ 0.08 |
| Nitrogen (N) |
≤ 0.05 |
| Hydrogen (H) |
≤ 0.015 |
Mechanical Properties
| Property |
Value |
| Density |
4.51 g/cm³ |
| Tensile Strength |
450 MPa (min) |
| Yield Strength (0.2% offset) |
380 MPa (min) |
| Elongation |
18% |
| Hardness |
27 HRC |
| Modulus of Elasticity |
104 GPa |
| Max Service Temperature |
315°C |
| Melting Point |
1668°C |
Applications
- Chemical Processing: Heat exchangers, pressure vessels, pump housings, valve bodies, column internals
- Marine: Propeller shafts, seawater piping, offshore platform components, subsea equipment
- Industrial: Electrodes for electrowinning, anodes, bleaching equipment in pulp and paper
- Energy: Geothermal well components, condenser tubing, heat recovery systems
- Aerospace: Non-structural airframe components, ducting, clamps
