0Cr27Al7Mo2 Molybdenum-Bearing FeCrAl Wire
Also Known As: Pyromet 650, The King of FeCrAl Alloys
Max 1400°C| Chemical Composition (%) | |
|---|---|
| Element | Value |
| C | ≤0.05 |
| P | ≤0.025 |
| S | ≤0.02 |
| Mn | ≤0.5 |
| Si | ≤0.4 |
| Cr | 26.5~27.8 |
| Ni | ≤0.6 |
| Al | 6.0~7.0 |
| Fe | Remainder |
| Mo | 1.8~2.2 |
| Physical Properties | |
| Property | Value |
| Max. Operating Temp. | 1400°C |
| Resistivity at 20°C (μΩ·m) | 1.53±0.07 |
| Density | 7.1 g/cm³ |
| Thermal Conductivity (20°C) | 13 W/(m·K) |
| Linear Expansion Coeff. (20-1000°C) | 16.0×10⁻&sup6;/°C |
| Specific Heat Capacity | 0.49 J/(g·K) |
| Approx. Melting Point | 1520°C |
| Elongation (A/%) | ≥10% |
| Tensile Strength (Rm) | ≥680 MPa |
| Accelerated Life Test | ≥50h/1350°C |
| Microstructure | Ferrite |
| Magnetic Properties | Magnetic |
| Available Forms | |
| Form | Size |
| Bright & Soft Annealed Wire | 0.05-1.6mm |
| Acid-Pickled / Oxidation Wire | 1.0-12.0mm |
| Rods | 6.0-150.0mm |
0Cr27Al7Mo2 — The Most Advanced FeCrAl Alloy
0Cr27Al7Mo2 represents the pinnacle of FeCrAl alloy technology. Known as “The King of FeCrAl Alloys” and equivalent to Pyromet 650, this molybdenum-bearing alloy combines the highest chromium and aluminum levels with strategic molybdenum addition. The Mo addition provides solid-solution strengthening, dramatically improving high-temperature mechanical properties while maintaining exceptional oxidation resistance up to 1400°C.
Key Advantages
- Highest temperature capability in the FeCrAl family — up to 1400°C
- Molybdenum provides exceptional solid-solution strengthening
- Superior creep rupture strength at extreme temperatures
- Outstanding resistance to corrosive furnace atmospheres
- Excellent resistance to thermal shock and cycling
- Longest service life among all FeCrAl grades
- Higher resistivity allows more compact element designs
Typical Applications
- Critical high-temperature industrial furnace elements
- Advanced metallurgical heat treatment equipment
- Reformers and radiant tubes in petrochemical industry
- Glass melting and fiber production equipment
- High-temperature brazing and sintering furnaces
- Elements for continuous operation at 1300–1400°C
- Defense and aerospace thermal processing systems
Standards & Equivalents
International Standard Cross-Reference for 0Cr27Al7Mo2
| GB/T (China) | 0Cr27Al7Mo2 |
|---|---|
| Haynes International | Pyromet 650 |
| Classification | Molybdenum-bearing premium FeCrAl |
| Key Feature | Mo addition for extreme environment service |