Commercially Pure Titanium Grade 1
Nov 26, 2025
Applications
Bellows, aircraft structural honeycomb, gaskets, aircraft skin, heat exchanger parts, deep drawing applications, implantable battery cases and shields for cardiac and neurostimulation devices, implantable battery cathodes and connectors, stamped or etched fabrications, and marine and chemical components subjected to very harsh environments. This material is also used for fabricating anodes for cathodic protection applications.
Chemistry Typical (Percent, Max)
Titanium balance; iron 0.20; oxygen 0.18; carbon 0.08; nitrogen 0.03; hydrogen 0.015; residuals each 0.10 max, total 0.40 max.
Physical Properties
Density: 4.51 g/cm3. Mean coefficient of thermal expansion (20-100 deg C): 8.6 x 10-6 per deg C. Thermal conductivity at 21 deg C: about 16 W/m-K. Modulus of elasticity in tension: about 105 GPa. Melting point: about 1670 deg C.
Mechanical Properties at Room Temperature (Annealed)
Ultimate tensile strength: 240 MPa minimum. Yield strength (0.2% offset): 170-310 MPa. Elongation: 24 percent minimum.
Grade 1 vs Other CP Grades
Grade 1 is the first of four commercially pure titanium grades. It is the softest and most ductile, with the greatest formability, excellent corrosion resistance, and high impact toughness, but the lowest strength. Grade 1 is the material of choice where ease of formability is required.
Frequently Asked Questions
What is Grade 1 titanium used for? Bellows, gaskets, heat exchanger parts, deep-drawn components, medical device housings, and marine and chemical parts in harsh environments.
What is the tensile strength of Grade 1? 240 MPa minimum in the annealed condition.
Why choose Grade 1 over Grade 2? Grade 1 offers higher ductility and formability; Grade 2 provides higher strength.
What are the physical properties of Grade 1? Bellows, gaskets, heat exchanger parts, deep-drawn components, medical device housings, and marine and chemical parts in harsh environments.
What is the typical chemistry of Grade 1? 240 MPa minimum in the annealed condition.
How does Grade 1 compare with the other CP grades? Grade 1 offers higher ductility and formability; Grade 2 provides higher strength.
