MP 159™ (UNS R30159) Alloy
Properties and Appearance
MP159 is a multiphase cobalt-nickel-chromium alloy with additions of molybdenum, titanium, niobium, aluminum, and iron. It delivers high strength, even when used at elevated temperatures exhibiting minimal deformation whilst remaining ductile. It can be cold worked with conventional methods and annealed at 1177°C (2150°F) with rapid air cooling.
It has good corrosion resistance and is well suited to hot temperatures and severe mechanical stress, providing excellent strength when hardened.
Chemical Composition
| Element | Content |
| Cobalt (Co) | 35.7% |
| Nickel (NI) | 25.5% |
| Chromium (Cr) | 19% |
| Iron (Fe) | 9% |
| Molybdenum (Mo) | 7% |
| Titanium (Ti) | 3% |
| Niobium (Nb) | 0.6% |
| Aluminum (Al) | 0.2% |
Physical Properties
| Properties | Metric | Imperial |
| Density | 8.33 g/cm³ | 0.301 lb./in³ |
Mechanical Properties
| Properties | Metric | Imperial |
| Tensile Strength (annealed 1052°C | 848 MPa | 123000 psi |
| Yield Strength (@ strain 0.2%, annealed 1052°C) | 400 MPa | 58000 psi |
| Elastic Modulus (@ 232°C / 450°F, annealed) | 208 GPa | 30200 si |
| Poisson’s Ratio | ||
| Elongation at Break (cold worked 48%) | 12% | 12% |
| Hardness, Rockwell B | ||
| Hardness, Brinell |
Thermal Properties
| Properties | Metric | Imperial |
| Thermal Expansion (@ 25 – 100°C/77 – 212°F) | 14.3 µm/m°-C | 7.94 µin/in°F |
| Thermal Conductivity (@21°C/70°F) | W/mK | BTU in/hr.ft².°F |
Applications
MP159™ is used in the following applications:
- Gas turbine hot section components
- Aerospace components where hot temperature strength and performance is required.
Formats Supplied
Vulcan Metal Group supplies MP159 in sheet, bar and rod form. Custom machined and finished parts supplied to print. Please contact us for more information on how Vulcan Metal Group can help you.
Fabrication and Heat Treatment
Cold Working
MP 159™ is ductile and can be cold worked with conventional methods.
Annealing
Anneal at 1177°C (2150°F). Air cool rapidly.
Address
Vulcan Metal Group LLC
23888 Madison Street
Torrance, CA 90505
United States
Phone / Fax
Phone: +1 310.882.6841
Fax: +1 310.893.0579
Cage Code
8FCY8
Quality Policy: Vulcan Metal Group, LLC. supplies mission critical, special purpose materials, and products at a competitive price. The company’s quality system is registered to ISO 9001 and AS9100 and follows its principles for the governance of the business. An active continual improvement program and compliance with all applicable OSHA, federal, and state regulations is maintained.