0Cr21Al6Nb is an iron-chromium-aluminium alloy for use at temperatures up to 1350℃.
Equivalent Grades
| Trademark | GB | GOST | ASTM | UNS | DIN | W.Nr. | NF | BS | JIS | SS |
| Kanthal A-1 | 0Cr21Al6Nb | – | – | – | – | – | – | – | – | – |
Chemical Composition, %
| Alloy | C | Si | Mn | P | S | Cr | Ni | Al | Fe | Other |
| 0Cr21Al6Nb | ≤0.05 | ≤0.60 | ≤0.70 | ≤0.025 | ≤0.020 | 21.0-23.0 | ≤0.60 | 5.0-7.0 | Bal | * |
Mechanical Properties (RT, Annealed)
| Tensile Strength, Rm/MPa | Elongation, A/% |
Dia. >3.00mm (Wire)
Thk. >0.20mm (Strip) | Dia. 0.10-3.00mm (Wire)
Thk. ≤0.20mm (Strip) |
| ≥650 | ≥12 | ≥10 |
Physical Properties
| Max Working Temp., ℃ | Melting Point, ℃ | Density, g/cm3 | Resistivity, μΩ·m 20℃ | Specific Heat, J/(g•K) | Thermal Conductivity, W/(m•K) 20℃ | Average Coefficient of Thermal Expansion,α×10-6/℃ 20-1000℃ | Micrographic Structure | Magnetic Properties |
| 1350 | 1510 | 7.10 | 1.45 | 0.49 | 13 | 16.0 | Ferrite | Magnetic |
Life Test
| Test Temperature, ℃ | Continuous Service Time Hours, ℃ |
| 1350 | ≥50 |
Temperature Factor of Resistivity
| 20℃ | 100℃ | 200℃ | 300℃ | 400℃ | 500℃ | 600℃ | 700℃ | 800℃ | 900℃ | 1000℃ | 1100℃ | 1200℃ | 1300℃ |
| 1.000 | 0.992 | 0.996 | 0.994 | 0.991 | 0.990 | 0.990 | 0.990 | 0.990 | 0.990 | 0.990 | 0.990 | 0.990 | 0.990 |
Available Products and Specifications
| Rod, Bar, Wire and Forgings | GB/T 1234-2012 |
| Plate, Sheet and Strip | GB/T 1234-2012 |
| Pipe and Tube | – |
| Welding Product | – |
| Others | – |
Features
- High resistivity
- Excellent oxidation resistance
- Low temperature coefficient of electric resistance
- High operating temperature
- Excellent oxidation resistance under high temperature
Applications
- Heating elements for single crystal diffusion furnaces
- Powder metallurgy products
- Sintering furnaces
- Ceramic calciner
- High temperature furnace elements up to 1300℃
