Product Code : AL-MHC-NN-CU
Molybdenum hafnium carbide (MHC) alloy is a particle-reinforced molybdenum alloy which contains hafnium and carbon. Molybdenum has excellent creep resistance, low resistivity, high corrosion resistance, high thermal conductivity, and low thermal expansion. Comparing to pure molybdenum, Molybdenum Hafnium Carbon Alloy has higher heat resistance, better creep resistance, and higher recrystallization temperature. The carbon is uniformly distributed along the alloys structure giving it excellent heat and creep resistant properties at elevated temperatures of 1550°C (2822°F). This alloy is able to function under extreme mechanical and thermal loads.
ATT is a professional supplier of MHC Alloy, The purity can be 99%(2N), 99.9%(3N), 99.99%(4N), 99.999%(5N), We also produce disc, granules, ingot, pellets, pieces, powder , rod, wire, sputtering target and in numerous other forms and custom shapes. Other shapes are available by request.
Please contact us if you need customized services. We will contact you with the price and availability in 24 hours.
| Product | Product Code | Purity | Size | Contact Us |
Product Information
Molybdenum hafnium carbide (MHC) alloy is a particle-reinforced molybdenum alloy which contains hafnium and carbon. Molybdenum has excellent creep resistance, low resistivity, high corrosion resistance, high thermal conductivity, and low thermal expansion. Comparing to pure molybdenum, Molybdenum Hafnium Carbon Alloy has higher heat resistance, better creep resistance, and higher recrystallization temperature. The carbon is uniformly distributed along the alloys structure giving it excellent heat and creep resistant properties at elevated temperatures of 1550°C (2822°F). This alloy is able to function under extreme mechanical and thermal loads.
This alloy is manufactured by the process of powder metallurgy. Some of the advantages that this alloy offers are dimensional stability, optimum non-deformability, high thermal stability, no cold brittleness, good hot ductility and very high crystallization temperatures. performance and processing deformation degree is related to heat treatment conditions. MHC alloy usually produced by powder metallurgy spindle, when the forging deformation is 60%, at 950 ~ 1250 ℃ the tensile strength is high 20% than TZM and the direction elongation is 10%. ATT is a professional supplier of MHC Alloy, The purity can be 99%(2N), 99.9%(3N), 99.99%(4N), 99.999%(5N), We also produce disc, granules, ingot, pellets, pieces, powder , rod, wire, sputtering target and in numerous other forms and custom shapes. Other shapes are available by request.
Synonyms
Molybdenum hafnium carbon alloy, moly hafnium carbide, molybdenum + 1.2% hafnium, Mo-1Hf-0.05C
MHC Alloy Specification
Size：customized
Purity: customized
Per your request or drawing
We can customized as required
MHC Alloy Products
| Materials | customized |
| Plate | √ |
| Sheet | √ |
| Strip | √ |
| Rod | √ |
| Sputtering Target | √ |
| Tube | √ |
Other: Spherical MHC Alloy Powder, MHC Alloy crucibles, MHC Alloy nuts, MHC Alloy bolts, MHC Alloy heating elements, and MHC Alloy shielding screens.
Properties（Theoretical）
| Compound Formula | Mo-Hf-C | |
| Appearance | Metallic solid in various forms (bars, rods, sheets, plates, discs, targets, billets) | |
| Vickers Hardness | 255-320 (mid-radius, DPH) | |
| Properties | Metric | Imperial |
| Tensile strength(mid-radius) | ≥689 MPa | ≥100 ksi |
| Yield strength(mid-radius) | ≥586 MPa | ≥85 ksi |
| Elongation at Break (mid-radius) | ≥3% | ≥3% |
| Hardness, Vickers | ≤34 | ≤34 |
Chemical Composition
| Element | Content (%) |
| Molybdenum, Mo | ≥98.43 |
| Hafnium, Hf | 0.80-1.4 |
| Carbon, C | 0.050-0.15 |
| Iron, Fe | ≤0.010 |
| Nickel, Ni | ≤0.0050 |
| Silicon, Si | ≤0.0050 |
We can customized as required
Comparison of between MHC and various Superalloys
| Name | Nickel base | Niobium base | Titanium aluminum | Iron base | Tungsten | TZM alloy | MHC alloy |
| densityg/cm3 | 8.9 | 8.57 | 4.54 | 7.86 | 19.3 | 10.13 | 10.23 |
| thermal conductivityw/m.k | 90 | 53.7 | / | 46.52 | 173 | 135 | 135 |
| thermal expansionmm/℃ | / | / | / | 0.016-0.018 | 0.0046 | 0.0052 | 0.0052 |
| tensile strengthσb（MPa） | 170 | 92.3 | 65 | 88 | 488 | 370 | 300 |
| melting point | 1453±1℃ | 2468℃ | 1669℃ | 1535℃ | 3410±20℃ | 2610℃ | 2610℃ |
| boiling point | 2800℃ | 4744℃ | / | 2750℃ | 5927℃ | 5560℃ | 5560℃ |
| temperature | 1000℃ | 1600℃ | 470℃ | 850℃ | 1100℃ | 1200℃ | 1400℃ |
| specific heatkj/kg.℃ | 0.46 | 0.26 | / | 0.45 | 0.14 | 0.25 | 0.25 |
| yield strengthσs（MPa） | 136 | 81.2 | 52 | 70.4 | / | 310 | 283 |
| Elongationδ（%） | 55% | 32.9% | 75% | 55% | / | ＞20% | ＞15% |
Applications of MHC Alloy
High-temperature forging die
Rocket booster
Vacuum furnace
X-ray rotating anode target
Metal forming – making extrusion dies,
Extrusion of copper and copper alloys
Molten metal processing.
Packing of MHC Alloy
Standard Packing:
Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes Special package is available on request.
ATTs’ MHC Alloy is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition.
