CP Titanium is selected for its favorable strength to weight ratio and excellent corrosion resistance. Two levels of purity
permit a choice of finish strength.
The alloy can be formed from the annealed temper. Severe forming may be aided by an intermediate stress relief at 1000°F. Stress relieving may be appropriate after severe cold forming to remove residual stresses. Welding should be performed with inert gas shielded arc or spot welding.
Welding with active gases, coatings, or fluxes must be avoided to prevent embrittlement.
Available Sizes:
CP Titanium is available from Hamilton Precision Metals as strip product from 0.0005” to 0.025” (0.0127 mm to 0.635 mm) and widths up to 12.0” (304.8 mm). A foil product is available as thin as 0.000085” (0.002159 mm) and widths of 4.0” (101.6 mm) maximum. The material conforms to
ASTM F67, ASTM B265, AMS 4902 and UNS R50250,R50400.
Nominal Composition
| CP TITANIUM NOMINAL COMPOSITION |
| Grade 1 |
|
| Titanium |
Balance
|
| Oxygen |
0.06%
|
| Iron |
0.03%
|
| Carbon |
0.01%
|
| Grade 2 |
|
| Titanium |
Balance
|
| Oxygen |
0.12%
|
| Iron |
0.08%
|
| Carbon |
0.02%
|
Mechanical Properties
| CP TITANIUM MECHANICAL PROPERTIES |
|
GRADE 1 ANNEALED |
GRADE 2 ANNEALED |
| Ultimate Tensile Strength |
50,000 PSI |
70,000 PSI |
| Yield Strength (0.2% Offset) |
30,000 PSI |
50,000 PSI |
| Elongation in 2” * |
35%
|
30%
|
| Modulus of Elasticity (Tension) |
14.9 x 106
PSI
|
14.9 x 106
PSI |
| Poisson’s Ratio |
0.35
|
0.35 |
*The measured elongation will be less as thickness decreases to 0.002” and less.
These values may be adjusted by control of process variables – consult HPM for desired values.
Physical Properties
| CP TITANIUM PHYSICAL PROPERTIES |
| Density |
0.163 lbs/cu.in. |
| Melting Point (Approx.) |
1660°C |
| Electrical Resistivity @ R.T. |
56 Microhm·cm |
|
Thermal Expansion Coefficient (0 to 100°C)
|
8.6 x 10-6/°C
|
| Thermal Expansion Coefficient (0 to 315°C) |
9.2 x 10-6/°C
|
| Thermal Conductivity @ R.T. |
16.0 W/m·K |
| Magnetic Attraction |
None |
Typical values to guide alloy selection but are not a guarantee of minimum or maximum.
Application:
Both CP Titanium grades have multiple mission critical applications and because of their slightly different mechanical properties and compositions, they are used across multiple different sectors.
Grade 1 CP Titanium has applications such as, metal diaphragms for aerospace sensors, speaker domes, implantable medical cases, cranial titanium mesh, precision metal stampings and metal diaphragms for burst discs.
Furthermore, Grade 2 CP Titanium is also used for applications such as, speaker domes and implantable medical cases.