grade 2 titanium composition
Dec 09, 2025
What is GR2 titanium material?
Titanium Grade 2 CP 3 | UNS #R50400 is generally known as the workhorse of the Commercially Pure Titanium grades and is therefor unalloyed. Because of its varied usability and wider availability, the metal has become used in many markets and applications. Grade 2 shares many similar qualities to Grade 1 Titanium, including corrosion resistance. Grade 2 is stronger, however.
Due to higher levels of iron and oxygen, Grade 2 Titanium possess high strength, good formability and weldability, and ductility. These traits makes Grade 2 Titanium Bar and Sheet a primary choice for a wide variety applications.
Commercially Pure or CP titanium in unalloyed. Grade 2 has higher levels of iron and oxygen than other CP grades, which offers excellent formability and moderate strength with superior corrosion resistance. CP Grade 2 titanium is widely used in heat exchangers. CP2 is one of the most common titanium grades, with properties that make it a good candidate for chemical and marine, aerospace and medical applications.
grade 2 titanium composition
ASTM B338 – Seamless & welded titanium & titanium alloy tubes for condensers & heat exchangers
| Element | Titanium | Nitrogen | Carbon | Hydrogen | Iron | Oxygen | Residuals (each) | Residuals (total) |
| % | Balance | 0.03 max | 0.08 max | 0.015 max | 0.30 max | 0.25 max | 0.1 max | 0.4 max |
Specified Minimum Mechanical Properties
(ASTM B338 – Seamless & welded titanium & titanium alloy tubes for condensers & heat exchangers)
| 0.2% Proof Stress | Tensile Strength | Elongation | |
| MPa | MPa | % | |
| Annealed | 275-450 | 345 | 20 |
Physical Properties
|
Density |
Melting Range |
Modulus of Elasticity (Tension) |
Specific Heat |
Mean Coefficient of Expansion |
Thermal conductivity |
Electrical Resistivity |
|
kg/m3 |
°C |
GPa |
J/kg. °C |
x10 -6 / °C |
W / m. °C |
micro-ohm.m |
| 4,507 | 1668± 10 | 103 | 519 | 8.41 | 11.4 | 0.420 |
Erosion Corrosion Rates of Unalloyed Titanium, Grade 2
|
Location |
Flow Rate |
Type of Test |
Test Duration |
Erosion Corrosion Rate |
|
m/sec |
months |
mm/year |
||
| Brixham Sea | 9.8 | Model Condenser | 12 | 0.003 |
| Kure Beach, NC | 1 | Ducting | 54 | 7.5 x 10-7 |
| Kure Beach, NC | 8.5 | Rotating Disc | 2 | 1.3 x 10-4 |
| Kure Beach, NC | 9 | Micarta Wheel | 2 | 2.8 x 10-4 |
| Kure Beach, NC | 7.2 | Jet Impingement | 1 | 5.0 x 10-4 |
| Wrightsville Beach, NC | 1.3 | – | 6 | 1.0 x 10-4 |
| Wrightsville Beach, NC | 9 | Micarta Wheel | 2 | 1.8 x 10-4 |
| Mediterranean Sea | 7.2 | Jet Impingement | 0.5 | 0.5mg/day |
| Dead Sea | 7.2 | Jet Impingement | 0.5 | 0.5mg/day |
ASTM Product Specifications
| Specification | Title |
| B265 |
Titanium and Titanium Alloy Strip, Sheet & Plate |
| B381 |
Titanium and Titanium Alloy Forgings |
| B348 |
Titanium and Titanium Alloy Bars and Billets |
| B337 |
Seamless and Welded Titanium and Titanium Alloy Pipe |
| B338 |
Seamless and Welded Titanium and Titanium Alloy Tubes for Condensers and Heat Exchangers |
| B363 |
Seamless and Welded Unalloyed Titanium and Titanium Alloy Welding Fittings |
| B367 |
Titanium and Titanium Alloy Castings |
why choose us
We provide a comprehensive range of titanium materials and fabricated parts, including:
Titanium Tubes & Pipe: Seamless and welded tubing in commercial and aerospace grades (Gr1, Gr2, Gr5, Gr7, Gr9, Gr12), suitable for heat exchangers, condenser tubes, and piping systems.
Titanium Bars & Rods: Round bars, hex bars, and square bars in hot-rolled, forged, and cold-drawn conditions, available in various diameters and lengths.
Titanium Plate & Sheet: Plates, sheets, and strips in standard and custom dimensions, ideal for pressure vessels, chemical processing, and marine applications.
Titanium Wire & Foil: Fine wire for welding, fasteners, and medical applications, alongside ultra-thin foil for specialized industrial uses.
Precision Titanium CNC Machining Parts: Custom-engineered components, fittings, flanges, fasteners, and intricate parts machined from titanium billets, bars, or plates with tight tolerances.
For quotes, technical specifications, or to discuss your project requirements for titanium tubes, bars, plates, sheets, wire, foil, or custom CNC machined components, please contact our team.
Email us at: info@gneemetal.com
