What is the hardness of titanium grade 2?
Dec 09, 2025
What is GR2 titanium material?
GR2 titanium (3.7035 / UNS R50400) is the king of industrial applications due to its varied usability and wide availability. It shares many equal qualities with grade 1, however but its stronger to some extent. Both classes are equally immune to corrosion.
TiGr2 shows good weldability and strength, stands out with a low specific weight at favorable mechanical properties such as ductility and formability.
Shows excellent cold formability and a high corrosion resistance to reducing and oxidizing media and brine. It is prominent in constant working operations, where temperatures reach up to 800°F (425°C) as well as in intermittent working conditions where temperatures reach up to 1000°F (540°C). It can be welded, cold- and hot- machined also cast.
What is the hardness of titanium grade 2?
The hardness of Titanium Grade 2 (UNS R50400) typically ranges between 150 - 210 Brinell (HB) or 70 - 95 Rockwell B (HRB), depending on its material condition and processing history.
Detailed Hardness Values by Condition
| Condition / Temper | Brinell Hardness (HB) | Rockwell Hardness (HRB) | Equivalent Vickers (HV) |
|---|---|---|---|
| Annealed (Most Common) | 150 - 175 HB | 70 - 85 HRB | 150 - 170 HV |
| Cold Worked (¼ Hard) | 175 - 195 HB | 85 - 92 HRB | 170 - 190 HV |
| Cold Worked (Full Hard) | 195 - 210+ HB | 92 - 100+ HRB | 190 - 210+ HV |
Chemical composition of Titanium Gr 2
| Ti | Fe | C | O | H | N |
| % | % | % | % | % | % |
| rest | 0.3 | 0.08 | 0.25 | 0.015 | 0.03 |
Mechanical properties at room temperature of Titanium Gr 2
| Miniumum values | Typical values | |
| Yield Strenght | 275 MPa | 350-450 MPa |
| Ultimate Strenght | 345 MPa | 485 MPa |
| Elongation in 50 mm, A5 | 20 % | 28 % |
| Reduction in area | 30 % | 55 % |
| Hardness | 160-200 HV | |
| Modulus of elasticity | 103 GPa | |
| Charpy V-Noch Impact | 40-82 J |
Resistance to Corrosion
Titanium's C.P. grades corrosion resistance comes from a strongly adherent, stable, protective oxide film, which forms in the presence of oxygen. This film makes the commercially pure titanium grades resistant to most oxidizing, neutral and inhibited reducing, as well as mildly reducing environments. Grade 2 offers excellent resistance to seawater and marine atmospheric corrosion. Corrosion resistance is similar between the four C.P. grades, but mechanical properties vary along with varying oxygen and iron contents. Grade 2 titanium is resistant to attack from moist chlorides and metallic chlorides, chlorite and hypochlorite solutions, nitric and chromic acids, organic acids as well as many gaseous industrial applications.
Main fields of application of Titanium Gr 2
In chemical processes (can be use in oxidizing media, alkaline media, organic acids and compounds, aqueous salt solutions and hot gases);offshore industries (is fully resistant to corrosion in seawater at temperatures up to 300°C); in aircraft construction where a certain strength level and ease of formability is desired; in heat exchangers, hypochlorite systems, fire water systems, ballast water system, pumps and cryogenic vessels.
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
