Unalloyed Commercially Pure (CP) Titanium
Unalloyed Commercially Pure (CP) Titanium is represented by four distinct grades, specifically 1, 2, 3 and 4. CP titanium is ordered in relation to the corrosion resistance, formability (ductility) and strength requirements of a specific application. CP titanium ranges from grade 1, which has the highest corrosion resistance, formability and lowest strength, to grade 4, which offers the highest strength and moderate formability. CP titanium end users utilize excellent corrosion resistance, formability and weldable characteristics for many critical applications.
Chemistry
| Grade 1 | Grade 2 | Grade 3 | Grade 4 | |
|---|---|---|---|---|
| Nitrogen, max. | 0.03 | 0.03 | 0.05 | 0.05 |
| Carbon, max. | 0.10 | 0.10 | 0.10 | 0.10 |
| Hydrogen, max. | 0.0125 | 0.0125 | 0.0125 | 0.0125 |
| Iron, max. | 0.20 | 0.30 | 0.30 | 0.50 |
| Oxygen, max. | 0.18 | 0.25 | 0.35 | 0.40 |
| Titanium | Balance | Balance | Balance | Balance |
FWM chemistry is for reference only, and is not to be used for specification purposes.
Physical Properties
| Density | 0.163 lbs/in3 |
|---|---|
| Modulus Of Elasticity | 14.9 psi x 106 |
| Electrical Resistivity | 0.42-0.52 µohms-m |
| Thermal Conductivity | 16-22 W/mK |
Surface Conditions
CP titanium has a tendency to stick, fret or cold weld with drawing dies during processing. Common industry practice to avoid this condition usually employs heavy etching or pickling at finish size resulting in a course or very textured surface. Fort Wayne Metals has developed processing techniques with enhanced surface treatments that require minimal etching at finish size to remove most residual oxide, yielding a cleaner and smoother surface finish. Material can be purchased with this improved surface finish or with a retained water soluble lubricant for applications where lubricity on the wire is required (i.e. weaving applications).
Diameter Tolerances
Enhanced surface treatments and processing techniques allow Fort Wayne Metals to offer tighter and more controlled tolerances. The chart in the right column details standard diameter tolerances for CP Titanium in wire and coil forms. Most diameters can be produced to tighter tolerances.
Applications
Fort Wayne Metals manufactures CP titanium in straightened and cut bar, coil, strands and cables, flat wire and wire form to support a variety of critical medical and industrial based applications. End uses include:
- Orthopaedic applications
- Needles
- Pacing leads
- Woven wire mesh
- Sutures
- Ligature clips
- Orthodontic appliances
- Eye glass frames
Mechanical Properties
| Grade | U.T.S. min., ksi (MPa) | Y.S. min. (2% offset) ksi (MPa) | % Elongation (2 in. gage length) min. % |
|---|---|---|---|
| 1 | 35 (240) | 25 (170) | 24 |
| 2 | 50 (345) | 40 (275) | 20 |
| 3 | 65 (450) | 55 (380) | 18 |
| 4 | 80 (550) | 70 (483) | 15 |
Values are typical and may not represent all diameters. Test method will affect results.
Approximate FWM Tensile Properties
| Grade | Condition | U.T.S. ksi (MPa) |
|---|---|---|
| 1 | Cold Worked | 85-115 (586-793) |
| 1 | Annealed | 45-75 (310-517) |
| 2 | Cold Worked | 110-140 (758-965) |
| 2 | Annealed | 65-90 (448-621) |
| 4 | Cold Worked | 135-165 (931-1138) |
| 4 | Annealed | 95-120 (655-827) |
Values are typical and may not represent all diameters. Test method will affect results. CP titanium in centerless ground bar, coil, and wire can be offered in annealed or cold worked conditions.
Diameter in. (mm)
| Including | Under | Standard Tolerance |
|---|---|---|
| 0.0010 (0.0254) | 0.0048 (0.1219) | ±0.0001 (0.0025) |
| 0.0048 (0.1219) | 0.0080 (0.2032) | ±0.0002 (0.0051) |
| 0.0080 (0.2032) | 0.0120 (0.3048) | ±0.0003 (0.0076) |
| 0.0120 (0.3048) | 0.0240 (0.6096) | ±0.0004 (0.0102) |
| 0.0240 (0.6096) | 0.0330 (0.8382) | ±0.0005 (0.0127) |
| 0.0330 (0.8382) | 0.0440 (1.1176) | ±0.0008 (0.0203) |
| 0.0440 (1.1176) | 0.2510 (6.3754) | ±0.0010 (0.0254) |
Product Capability Wire
Fort Wayne Metals utilizes state-of-the-art equipment and processing techniques to provide precision drawn CP titanium. Wire is typically provided on standard FWM spools (see packaging and spooling data sheet). Custom packaging or spools will be considered based on our equipment capabilities.
Diameter Range 0.001" (0.0254mm) to 0.062" (1.5748mm)
Coil
Fort Wayne Metals provides precision loose wound coils for many critical applications, coil weights can reach a maximum of 100 pounds, nominal 50 pound weight depending on diameter.
Diameter Range
0.040" (1.016mm) to 0.250"(6.35mm)
Packaging (coil I.D.)
0.040" (1.016mm) to 0.125" (3.175mm) = 20" (508mm) nominal
0.100" (2.54mm) to 0.250"(6.35mm) = 28" (711mm) nominal
Centerless and Precision Ground Bar
Fort Wayne Metals provides straightened and cut bar product in centerless and precision ground conditions. Customers can order discrete lengths, however, material is typically manufactured in 10' (3048mm) to 12' (3657mm) random lengths. Most diameters can be produced to tighter tolerances.
Diameter Range
0.0787" (2.0mm) to 0.250" (6.35mm)
| Standard Tolerance | Surface Roughness (RMS) | |
|---|---|---|
| Centerless Ground Bar | ±0.001" (0.0254 mm) | 24 or better |
| Precision Ground Bar | ±0.0005" (0.0127 mm) | 16 or better |
Other Titanium & Titanium Alloys Available
- CPTi Gr.1
- CPTi Gr.2
- CPTi Gr.3
- CPTi Gr.4
- Ti 6Al-4V ELI
- Ti 6Al-7Nb
- Ti 3Al-2.5V
- Ti 3Al-8V-6Cr-4Mo 4Zr (Ti Beta C)
Other titanium and titanium alloys will be considered upon request.
Trademark Information | Privacy Policy | Terms and Conditions