Revision: “R” issued 07/2021
Commercially Pure 70 ksi Yield Strength (Grade 4)
Product Forms: Titanium Bars, Wire, Forgings, and Rings
|Iron (Maximum): 0.50%||Hydrogen (Maximum): 0.0125%|
|Oxygen (Maximum): 0.40%||Other Elements (Each): 0.10%|
|Carbon (Maximum): 0.08%||Other Elements (Total): 0.30%|
|Nitrogen (Maximum): 0.05%||Titanium: Balance|
|Tensile Properties (Minimums)*|
|Tensile: 80 ksi||Elongation: 10 – 15%|
|Yield: 70 ksi||Reduction of Area: 25 – 30%|
*Tensile property requirements vary based on orientation, section thickness/diameter, and cognizant engineering organization requirements.
Required Acceptance Tests
- Chemical Composition
- Tensile Properties
- Surface Contamination
- Ultrasonic (where required)
The use of this information is strictly voluntary. Information may contain typographical errors, and should be used as a guideline only. This Material Spec Sheet contains generalizations and is in no way a substitution for the AMS 4921 specification.
To purchase AMS 4921R, please visit: http://standards.sae.org/ams4921r/
Changes may be made to the information contained herein.