0Cr20Al3 is an iron-chromium-aluminium alloy for use at temperatures up to 1100℃.
Equivalent Grades
| Trademark | GB | GOST | ASTM | UNS | DIN | W.Nr. | NF | BS | JIS | SS |
| Kanthal LT | 0Cr20Al3 | – | Ⅲ | – | – | – | – | – | – | – |
Chemical Composition, %
| Alloy | C | Si | Mn | P | S | Cr | Ni | Al | Fe |
| 0Cr20Al3 | ≤0.10 | ≤1.00 | ≤0.70 | ≤0.025 | ≤0.025 | 18.0-21.0 | ≤0.60 | 3.0-4.2 | 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) |
| ≥580 | ≥15 | ≥12 |
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 |
| 1100 | 1500 | 7.35 | 1.23 | 0.49 | 13 | 13.5 | Ferrite | Magnetic |
Life Test
| Test Temperature, ℃ | Continuous Service Time Hours, ℃ |
| 1250 | ≥80 |
Temperature Factor of Resistivity
| 20℃ | 100℃ | 200℃ | 300℃ | 400℃ | 500℃ | 600℃ | 700℃ | 800℃ | 900℃ | 1000℃ | 1100℃ | 1200℃ | 1300℃ |
| 1.000 | 1.011 | 1.025 | 1.042 | 1.061 | 1.085 | 1.120 | 1.142 | 1.154 | 1.164 | 1.172 | 1.180 | 1.186 | – |
Available Products and Specifications
| Rod, Bar, Wire and Forgings | GB/T 1234-2012, ASTM B603-01 |
| Plate, Sheet and Strip | GB/T 1234-2012, ASTM B603-01 |
| Pipe and Tube | – |
| Welding Product | – |
| Others | – |
Features
- High resistivity
- Low temperature coefficient of electric resistance
- High operating temperature
- Good oxidation resistance under high temperature
Applications
0Cr20Al3 is typically used in industrial furnaces and home appliances.
- Panel heaters
- Infrared heaters
- Warming plates
- Irons
- Ceramic pots
- Cartridge heaters for liquid heating
- Storage heaters
- Ceramic heaters for cooking plates
- Air guns
- Hobby kilns
- Radiators
- Quartz tube heaters for space heating
- Toasters
- Toaster ovens
- Grills
- Industrial infrared dryers
- Coils on molded ceramic fibre for cooking plates with ceramic hobs
