Titanium CP Grade 1 (Commercially Pure Grade 1) is an unalloyed titanium grade known for its excellent corrosion resistance, high ductility, and good strength retention. It is 30% stronger than steel but nearly 50% lighter. Although aluminum is lighter, titanium is stronger and has excellent strength retention. Due to its weight, strength, and high corrosion resistance, gr1 titanium is very popular in aerospace, medical, shipping, military, and various manufacturing industries.
Titanium Grades 1-4 are unalloyed and generally known as CP (Commercially Pure). The tensile and yield strength of titanium generally increases with the grade number. Grade 1 titanium has the lowest strength but the highest ductility among the CP grades.
What is the chemical composition of Titanium CP Grade 1?
| Element | Weight % |
|---|---|
| Ti | Balance |
| C | 0.08 max |
| Fe | 0.02 (note: this is 0.02, tighter than standard 0.20) |
| N | 0.03 max |
| O | 0.15 (note: this is 0.15, tighter than standard 0.18) |
| H | 0.015 max |
What are the mechanical properties of Titanium CP Grade 1?
| Material | Condition | Tensile Strength (min) | Yield Strength | Elongation (%) |
|---|---|---|---|---|
| Titanium CP Grade 1 | Annealed | 35 ksi (241 MPa) | 25-45 ksi (172-310 MPa) | 24 |
What specifications cover Titanium Grade 1?
Aerospace Specifications (Sheet, Strip, Plate):
| Specification | Description |
|---|---|
| AMS 4940 | Sheet, strip, plate |
| MIL-T-9046J CP4 | Sheet, strip, plate |
| AMS-T-9046B CP4 | Sheet, strip, plate |
ASTM Specifications (Various Product Forms):
| Specification | Product Form |
|---|---|
| ASTM B265 Gr1 | Sheet and plate |
| ASTM B337 Gr1 | Pipe (withdrawn) |
| ASTM B338 Gr1 | Heat exchanger tube |
| ASTM B348 Gr1 | Bar |
| ASTM B367 Gr1 | Castings |
| ASTM B381 Gr1 | Forgings |
| ASTM F67 Gr1 | Surgical implant |
| ASTM F467 Gr1 | Nuts |
| ASTM F468 Gr1 | Bolts |
What are the global equivalent grades for Titanium Grade 1?
| Standard | Grade / Designation |
|---|---|
| UNS | R50250 |
| Werkstoff (German) | WS 3.7024 (aerospace), WS 3.7025 |
| French | AIR 9182 T35 |
| British | DTD 5013, IMI 115 |
| German DIN | DIN 17850 (chemistry), DIN 17860 (sheet/plate), DIN 17862 (bar), DIN 17863 (wire), DIN 17864 (forgings) |
| AICMA (French aerospace) | Ti-P01 |
| Scandinavian | LN 9297 |
What product forms are available for Titanium Grade 1?
Titanium Grade 1 is available in:
| Product Form | Typical Applications |
|---|---|
| Bar | Machined components, fasteners |
| Billet | Forged parts |
| Extrusion | Custom profiles |
| Plate | Heavy sections, structural |
| Sheet | Formed parts, chemical equipment |
| Strip | Rolled products, springs |
| Wire | Welding filler, fasteners |
| Pipe | Fluid transport systems |
| Tube | Heat exchangers, instrumentation |
| Rings | Pressure vessels, flanges |
| Forgings | Custom shaped components |
Forging size capabilities:
Ring size: OD ≤ 1300mm, Height ≤ 250mm
Disc size: OD ≤ 1100mm, Height ≤ 40mm
Why choose Titanium Grade 1?
| Advantage | Benefit |
|---|---|
| 30% stronger than steel | Higher strength for same weight |
| Nearly 50% lighter than steel | Significant weight reduction |
| Excellent corrosion resistance | Long service life in harsh environments |
| 24% elongation | Excellent formability and ductility |
| Good strength retention | Maintains properties at elevated temperatures |
| Biocompatible | Suitable for medical applications (ASTM F67) |
What industries use Titanium Grade 1?
| Industry | Application |
|---|---|
| Aerospace | Airframes, hydraulic systems, engine components |
| Medical | Surgical implants (ASTM F67), instrumentation |
| Shipping / Marine | Seawater systems, propellers, pumps |
| Military | Armor, structural components |
| Chemical Processing | Heat exchangers, reactors, piping |
| General Manufacturing | High-performance components |
Gr1 titanium for chemical processing provides excellent corrosion resistance. ASTM F67 grade 1 is the standard for medical implant applications.
How is Titanium Grade 1 inspected?
| Test | Description |
|---|---|
| Chemical Analysis | Verify titanium grade 1 composition per applicable spec |
| Tensile Testing | Confirm yield strength (172-310 MPa) and elongation (24%) |
| Hardness Testing | Verify consistency |
| Ultrasonic Testing | For seamless tube and bar |
| Eddy Current Testing | For welded tube |
| Dimensional Inspection | Verify tolerances |
packaged
| Method | Description |
|---|---|
| Sheet/Plate | Interleaved with paper, bundled on pallets |
| Bar/Rod | Bundled with straps, end caps |
| Tube/Pipe | Plastic wrap, end caps, wooden boxes |
| Wire | Coils on spools |
| Forgings | Individual wrapped in crates |
