Titanium Grade 2 properties
Titanium Grade 2 is commercially pure titanium, the most widely used unalloyed grade. It combines moderate strength with outstanding corrosion resistance and a low density, and it is readily formed and welded.
Mechanical properties
| Property | Value |
|---|---|
| Yield strength | 40 ksi (275 MPa) |
| Ultimate tensile strength | 50 ksi (345 MPa) |
| Elongation | 20% |
| Hardness | about 80 HRB (Rockwell B) |
| Modulus of elasticity | 15,200 ksi (105 GPa) |
Physical properties
| Property | Value |
|---|---|
| Density | 0.163 lb/in³ (4510 kg/m³) |
| Melting point | about 1665 °C |
Thermal properties
| Property | Value |
|---|---|
| Thermal conductivity | 16.4 W/m·K |
| Thermal expansion | 8.6 µm/m·°C |
| Specific heat | 523 J/kg·K |
Values are typical for the grade and condition shown. Actual properties vary with temper, heat treatment, and product form, so use these for comparison and preliminary design and confirm against material certificates for final work.
Compare with other materials
See the Material Properties Comparison, Yield Strength, and Density charts.
Typical uses
Grade 2 titanium is used for chemical processing equipment, heat exchangers, marine parts, and medical components. Its exceptional corrosion resistance, even in seawater and many acids, combined with light weight, makes it ideal where stainless steel would corrode.
How it compares
Grade 2 titanium is about as strong as mild steel but at roughly 60 percent of its weight, with far better corrosion resistance. It is weaker than the Grade 5 alloy but more formable and weldable, and it is the standard choice when corrosion resistance leads.
FAQ
What is Grade 2 titanium?
Commercially pure titanium, the most common unalloyed grade, offering moderate strength with excellent corrosion resistance and good formability.
Is titanium corrosion resistant?
Extremely. A tough oxide layer protects it in seawater, chlorides, and many acids, outperforming stainless steel in aggressive environments.
How strong is Grade 2 titanium?
About 40 ksi yield, similar to mild steel, but at around 60 percent of steel weight, giving a strong strength-to-weight ratio.