Titanium Grade 4 Commercially Pure 75A Wire UNS R50700

Of all the commercially pure grades, Titanium Grade 4 has the highest strength and combines excellent corrosion resistance with good formability and weldability.

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TI 75A Shaped, Flat, Square, Round, Fine Wire, Plated and Un-plated Specifications: ASTM B265 GR4, AMS 4901, ASTM F67, MILT-9046CP1

Commercially Pure Titanium Grade 4 Alloy Description

Of all the commercially pure grades, Titanium Grade 4 has the highest strength. This alloy combines excellent corrosion resistance with good formability and weldability. Generally chosen for its corrosion resistance in a variety of chemical process equipment as well as marine and airframe applications. It can be used for parts requiring strength up to 400°F and oxidation resistance to 600°F.


Metal gaskets
Chemical processing
Marine applications
Medical devices
Heat exchanger components
Deep drawing applications

Chemistry Typical

Titanium: Balance
Iron: 0.50 max
Oxygen: 0.40 max
Carbon: 0.80 max
Nitrogen: 0.05 max
Hydrogen: 0.015 max
Residuals each 0.10 max, total 0.40 max

Common Titanium Grade Names



Description 1Description 2ASTMAMSUNS
Grade 4 TitaniumTI75AUnalloyed TitaniumCommercially Pure Titanium4901R50700

Physical Properties

Density: 0.163 lbs/in³ (4.51 g/cm³)

Mean Coefficient of Thermal Expansion, in/in/°F (mm/m/°C)
70-212°F (20-100°C) 4.78 x 10 (8.6)

Thermal Conductivity: BTU-in/h-ft-°F (W/m-°K)
At 70°F (21°C): 119 (17.2)

Modulus of Elasticity, KSI (MPa)
15.2 x 10³ (105 x 10³) in tension

Melting Point: 3020°F (1660°C)

Mechanical Properties at Room Temperature

Properties: Annealed

Ultimate Tensile Strength: 80 KSI min (552 MPa min)
Yield Strength (0.2% offset): 70-90 KSI (483-655 MPa )
Elongation: 15% min

Properties Tempered

Commercially Pure Titanium Grade 4can be cold rolled to achieve the temper properties required by specific customers and/or manufacturing requirements.

Contact Ulbrich Wire for details.

Additional Properties

Corrosion Resistance

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

Standard Wire Finishes

Extra Clean: (XC) Extra clean is also referred to as “bright annealed” or “bright annealed and cold rolled”

Grease (round wire only): Drawn in a heavy grease produces an “Ultra bright” finish for decorative applications

Soap (round wire only): Soap is used as a lubricant in the drawing process and is not removed. It acts as a lubricant during customer part forming operation.

A soap finish is available in tempered products.
Plated: Many plating options are available.
*Special finishes are available: Contact Ulbrich Wire Sales with special finish and plating requests.


Continuous Coils
Cut to lengths
Precision cutting

Heat Treatment

Commercially Pure Titanium Grade 4can only be hardened by cold work


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 and 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.

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