0Cr21Al6 (W.Nr. 1.4767) is an iron-chromium-aluminium alloy for use at temperatures up to 1250℃.
Equivalent Grades
Trademark | GB | GOST | ASTM | UNS | DIN | W.Nr. | NF | BS | JIS | SS |
– | 0Cr21Al6 | – | Ⅰ | – | CrAl20 5 | 1.4767 | – | – | – | – |
Chemical Composition, %
Alloy | C | Si | Mn | P | S | Cr | Ni | Al | Fe |
0Cr21Al6 | ≤0.06 | ≤1.00 | ≤0.70 | ≤0.025 | ≤0.025 | 19.0-22.0 | ≤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) |
≥600 | ≥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 |
1250 | 1500 | 7.16 | 1.42 | 0.45 | 13 | 14.0 | Ferrite | Magnetic |
Life Test
Test Temperature, ℃ | Continuous Service Time Hours, ℃ |
1300 | ≥80 |
Temperature Factor of Resistivity
20℃ | 100℃ | 200℃ | 300℃ | 400℃ | 500℃ | 600℃ | 700℃ | 800℃ | 900℃ | 1000℃ | 1100℃ | 1200℃ | 1300℃ |
1.000 | 1.000 | 1.002 | 1.006 | 1.011 | 1.020 | 1.037 | 1.043 | 1.046 | 1.049 | 1.052 | 1.055 | 1.058 | – |
Available Products and Specifications
Rod, Bar, Wire and Forgings | GB/T 1234-2012, ASTM B603-01, DIN 17470-1984 |
Plate, Sheet and Strip | GB/T 1234-2012, ASTM B603-01, DIN 17470-1984 |
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
0Cr21Al6 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