Our cobalt strip and cobalt foil materials are typically alloyed with chrome, nickel, iron and tungsten. They are used in challenging environments in applications that demand high temperature strength and hardness, excellent wear and corrosion resistance.
We engineer cobalt strip and cobalt foil in two alloys, L-605
™ and MP35N®-LTi.
Cobalt Strip and Foil Nominal Composition
| Type |
L-605™ |
MP35N®-LTi |
| Nickel |
10% |
35% |
| Tungsten |
15% |
- |
| Chromium |
20% |
20.5% |
| Iron |
3% Max |
0.5% |
| Manganese |
1.5% |
- |
| Carbon |
0.10% |
0.01% |
| Silicon |
1% Max |
- |
| Cobalt |
Balance |
33.5% |
| Molybdenum |
- |
9.5% |
| Titanium |
- |
0.01% |
| Boron |
- |
0.01% |
Cobalt Strip and Foil Physical Properties
|
L-605™ |
MP35N®-LTi |
| Density |
0.330 lbs/cu.in. |
0.304 lbs./cu.in. |
| Melting Point (Approx.) |
2500°F |
2400°F |
Electrical Resistivity
@ R.T. |
88.7 Microhm•cm |
103 Microhm•cm |
Thermal Expansion Coefficient
(RT to 200°C) |
12.9 PPM/°C |
13.7 ppm/°C |
Thermal Conductivity
@ R.T. |
12.7 W/m•K |
11.2 W/m•K |
Magnetic Permeability
@ R.T. |
- |
1.0009 |
Mechanical Properties L-605™
|
Annealed |
| Ultimate Tensile Strength |
0.330 lbs/cu.in. |
| Yield Strength (0.2% Offset) |
2500°F |
| Elongation in 2” * |
88.7 Microhm•cm |
| Hardness |
12.9 PPM/°C |
| Modulus of Elasticity |
12.7 W/m•K |
*The measured elongation will be less as thickness decreases to 0.002” and less
Mechanical Properties MP35N®-LTi
|
Annealed |
Cold Rolled |
Cold Rolled &
Heat Treated
|
| Ultimate Tensile Strength |
135,000 PSI |
275,000 PSI |
300,000 PSI |
| Yield Strength (0.2% Offset) |
57,000 PSI |
240,000 PSI |
290,000 PSI |
| Elongation in 2” * |
40% |
1% |
1% |
| Rockwell Hardness |
RB 94 |
RC 50 |
RC 55 |
| Modulus of Elasticity |
33.76 ksi x 103 |
- |
- |
*The measured elongation will be less as thickness decreases to 0.002” and less
Disclaimer: The information contained within this data sheet is for guidance only and is not intended for warranty of individual application - express or implied.
L-605
™ is a registered trademark of ATI.
MP35N
® - LTi is a registered trademark of SPS Technologies Inc.