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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. 0.08 0.08 0.08 0.08
Hydrogen, max. 0.015 0.015 0.015 0.015
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. Y.S. min. (2% offset) % Elongation
  ksi MPa ksi MPa (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
Including Under Standard Tolerance
in. mm in. mm in. mm
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 0.500"(12.70mm)


Packaging (coil I.D.)

0.040" (1.016mm) to 0.125" (3.175mm) = 20" (508mm) nominal
0.100" (2.54mm) to 0.500"(12.70mm) = 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 0.500" (12.70mm)

  Standard Tolerance Surface Roughness (RMS)
  in. mm  
Centerless Ground Bar ±0.001 ±0.0254 24 or better
Precision Ground Bar ±0.0005 ±0.0127 16 or better

Other Titanium & Titanium Alloys Available

Other titanium and titanium alloys will be considered upon request.

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