Available in four distinct grades (1, 2, 3, and 4), Titanium is classified by its corrosion resistance, ductility, and strength. CP Ti Gr. 1 has the highest corrosion resistance, formability, and lowest strength, whereas, CP Ti Gr. 4 offers the highest strength with moderate formability. The most desirable feature of our CP Ti is its ability to osseointegrate within the human body. Titanium also offers a higher strength-to-weight ratio and increased corrosion resistance compared to the stainless steel alloys, thus making it an attractive choice for medical applications.
- Titanium Grade 1 is the first of four commercially pure titanium grades. It is the softest and most ductile of these grades. It possesses the greatest formability, excellent corrosion resistance and high impact toughness.
Because of all these qualities, Grade 1 is the material of choice for any application where ease of formability is required and is commonly available as titanium plate and tubing. These include:
- Titanium Grade 2 is called the “workhorse” of the commercially pure titanium industry, thanks to its varied usability and wide availability. It shares many of the same qualities as Grade 1 titanium, but it is slightly stronger. Both are equally corrosion resistant.
This grade possesses good weldability, strength, ductility and formability. This makes Grade 2 titanium bar and sheet are the prime choice for many fields of applications:
- Titanium Grade 3 is least used of the commercially pure titanium grades, but that does not make it any less valuable. Grade 3 is stronger than Grades 1 and 2, similar in ductility and only slightly less formable – but it possesses higher mechanicals than its predecessors.
Grade 3 is used in applications requiring moderate strength and major corrosion resistance. These include:
- Titanium Grade 4 is known as the strongest of the four grades of commercially pure titanium. It is also known for its excellent corrosion resistance, good formability and weldability.
Though it is normally used in the following industrial applications, Grade 4 has recently found a niche as a medical grade titanium. It is needed in applications in which high strength is required:
Grade 1 | Grade 2 | Grade 3 | Grade 4 | |
Nitrogen, max. | 0.03 | 0.03 | 0.05 | 0.05 |
Carbon, max. | 0.08 | 0.08 | 0.08 | 0.08 |
Hydrogen, max. | 0.015 | 0.015 | 0.015 | 0.015 |
Iron, max. | 0.20 | 0.30 | 0.30 | 0.50 |
Oxygen, max. | 0.18 | 0.25 | 0.35 | 0.40 |
Titanium | Balance | Balance | Balance | Balance |
Grade | U.T.S. min. | Y.S. min. (2% offset) | % Elongation | ||
ksi | MPa | ksi | MPa | (2 in. gauge length) min. % | |
1 | 35 | 240 | 25 | 170 | 24 |
2 | 50 | 345 | 40 | 275 | 20 |
3 | 65 | 450 | 55 | 380 | 18 |
4 | 80 | 550 | 70 | 483 | 15 |
* Values are typical and may not represent all diameters. Test method will affect result
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