Grade 2 vs Grade 5 Titanium Forgings
Grade 2 and Grade 5 are not interchangeable titanium forging grades. Grade 2 is commercially pure titanium, while Grade 5 is Ti-6Al-4V. Selection should follow design strength, corrosion environment, temperature, fabrication route and the invoked specification.
Engineering Comparison
| Item | Grade 2 family | Grade 5 family |
|---|---|---|
| Alloy type | Commercially pure titanium | Ti-6Al-4V alpha-beta alloy |
| Selection focus | Corrosion resistance, ductility and industrial fabrication | Higher strength-to-weight requirement |
| Forging designation | State the applicable forging grade under the invoked standard | State the applicable Ti-6Al-4V forging grade and condition |
| Heat treatment | Order-defined condition within the applicable specification | Heat treatment is important to final properties and acceptance |
Do Not Transfer Plate or Bar Properties Automatically
Properties and acceptance criteria depend on the applicable product specification, forging condition, dimensions and test orientation. A certificate for plate or bar does not prove that a forging meets the same purchase requirements.
Corrosion and Strength Review
Grade 2 is often evaluated for chemical and marine corrosion service. Grade 5 is commonly evaluated for higher-load components. Actual suitability requires review of the medium, temperature, stress, crevice geometry, joining and design code.
Request a Grade-Controlled Forging
Send the grade, governing specification and revision, drawing, condition, quantity, NDT and documentation. Browse Titanium Forgings or request a Grade 5 forged disc.
Related Reading
Ring, Disc and Sleeve Selection · Forging Machining Allowance · Forgings for Valves, Pumps and Process Equipment