Titanium Grade 2 UNS R50400

(Commercially Pure Titanium: Grade 2) (TI40A) Strip, Coil, Foil, Wire,
ASTM B265 GR2, AMS 4902, ASTM F67, MIL-T-9046CP3

Applications

• Bellows
• aircraft structural honeycomb
• gaskets
• 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.

Chemistry Typical

Titanium: Balance
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)

Forms

Coil - Strip, Foil, Ribbon
Wire - Profile, Round, Flat, Square

Common Titanium Grade Names

Mechanical Properties of Grade 2 Titanium at Room Temperature

Properties Annealed:

Ultimate Tensile Strength: 50 KSI min (345 MPa min)
Yield Strength (0.2% offset): 40 - 65 KSI (276 - 448 MPa )
Elongation: 20% min

Properties: Tempered

Titanium Grade 2 can be cold rolled to various tempers. Contact Ulbrich Technical Service for additional information.

Additional Properties

Titanium Grade 2 Corrosion Resistance

Refer to NACE (National Associate of Corrosion Engineers) for recommendations.

Finishes

#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.

Wire Finishes

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.

Heat Treatment

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.