Titanium Grade 2 UNS R50400
Grade 2 Titanium is a Commercially Pure titanium grade with a low weight ratio, high strength and the outstanding corrosion resistance inherent to titanium and its alloys.
(Commercially Pure Titanium: Grade 2) (TI40A) Strip, Coil, Foil, Wire,
ASTM B265 GR2, AMS 4902, ASTM F67, MIL-T-9046CP3
- aircraft structural honeycomb
- aircraft skin
- heat exchanger parts
- implantable battery cases/shields for CRM and Neurostimulation devices
- implantable battery cathodes/connectors
- stamped or etched fabrications
Titanium Grade 2 Description
Commercially Pure Titanium Grade 2 is slightly stronger than Grade 1 but equally corrosion resistant against most applications. This unalloyed titanium has the best strength to weight ratio of any corrosion resistant material. This grade is one of the most common Titanium Grades and is used for Heat exchangers, condenser tubing and bleaching plants in paper industry, offshore oil installation water pipe lines. Can be used for parts requiring strength up to 400 ° F and oxidation resistance to 600 ° F.
Iron: 0.30 max
Oxygen: 0.25 max
Carbon: 0.10 max
Nitrogen: 0.03 max
Hydrogen: 0.015 max
Residuals each 0.10 max, total 0.40 max
Physical Properties of Grade 2 Titanium
Density: 0.163 lbs/in3, 4.51 g/cm3
Mean Coefficient of Thermal Expansion, in/inl° F (mm/ml° C):
70 - 212 ° F (20 - 100 ° C): 4.78 x 10-6 (8.6)
Thermal Conductivity: BTU-in/h-ft-° F (W/m-° K):
At 70 ° F (21 ° C): 114 (16.4)
Modulus of Elasticity, ksi (MPa)
15.2 x 103 (105 x 103) in tension
Melting Point: 3040 ° F (1670 ° C)
Coil - Strip, Foil, Ribbon
Wire - Profile, Round, Flat, Square
Common Titanium Grade Names
|Description 1||Description 2||ASTM||AMS||UNS|
|Grade 2 Titanium||TI40A||Unalloyed Titanium||Commercially Pure Titanium||4902||R50400|
Mechanical Properties of Grade 2 Titanium at Room Temperature
Ultimate Tensile Strength: 50 KSI min (345 MPa min)
Yield Strength (0.2% offset): 40 - 65 KSI (276 - 448 MPa )
Elongation: 20% min
Titanium Grade 2 can be cold rolled to various tempers. Contact Ulbrich Technical Service for additional information.
Titanium Grade 2 Corrosion Resistance
Refer to NACE (National Associate of Corrosion Engineers) for recommendations.
#1 - Hot rolled annealed and descaled. It is available in strip, foil and ribbon. It is used for applications where a smooth decorative finish is not required.
#2D - Dull finish produced by cold rolling, annealing and descaling. Used for deep drawn parts and those parts that need to retain lubricants in the forming process.
#2B - Smooth finish produced by cold rolling, annealing and descaling. A light cold rolling pass is added after anneal with polished rolls giving it a brighter finish than 2D.
#BA - Bright annealed cold rolled and bright annealed
#CBA - Course bright annealed cold rolled matte finish and bright anneal
#2 - Cold Rolled
#2BA- Smooth finish produced by cold rolling and bright annealing. A light pass using highly polished rolls produces a glossy finish. A 2BA finish may be used for lightly formed applications where a glossy finish is desired in the formed part.
Polished - Various grit finish for specific polish finished requirements.
* Not all finishes are available in all alloys- Contact Ulbrich Sales for more information.
XC - Extra clean. Bright annealed or bright annealed and cold rolled Grease - Ultra bright finish for decorative applications
Soap - Soap is not removed from tempered wire to act as a lubricant. * Contact Ulbrich Wire for custom finishes.
Titanium Grade 2 can only be hardened by cold work.
Welding Titanium Grade 2
For best results refer to: SSINA's "Welding of Stainless Steels and Other Joining Methods".
Limitation of Liability and Disclaimer of Warranty: In no event will Ulbrich Stainless Steels & Special Metals, Inc., be liable for any damages arising from the use of the information included in this document or that it is suitable for the 'applications' noted. We believe the information and data provided to be accurate to the best of our knowledge but, all data is considered typical values only. It is intended for reference and general information and not recommended for specification, design or engineering purposes. Ulbrich assumes no implied or express warranty in regard to the creation or accuracy of the data provided in this document.