0Cr21Al6
0Cr21Al6 is an iron-chromium-aluminium alloy (FeCrAl alloy) for use at temperatures up to 1250℃.
Equivalent Grades
Trademarks | GB | JIS | ASTM | UNS | DIN | W-Nr. | ГОСТ | BS | NF | SS |
---|
Kanthal A | 0Cr21Al6 | | Ⅰ | – | CrAl20 5 | 1.4767 | – | – | – | – |
Specifications
GB/T 1234-1995 (CN); JIS C2520-199(JP); ASTM B344-01(USA); DIN 17470-1984(GER); GOST 10994 & GOST 12766/1-1990 (RU)
Product Forms
Wire, Bar, Strip, Sheet, Plate, Tube, Mesh, Conveyor belt, Radiant tube heater
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/% | Hardness, HB |
---|
Dia. >3.00mm (for wire) | Dia. 0.10~3.00mm (for wire) and Th. >0.20 (for strip) |
≥600 | ≥15 | ≥12 | 200~260 |
Physical Properties
Max Working Temperature, ℃ | Melting Point, ℃ | Density, g/cm3 | Resistivity, μΩ·m, 20℃ | Specific Heat, J/g·℃ | Thermal Conductivity, KJ/m·h·℃ | Average Coefficient of Linear Expansion, α×10-6/℃ (20~1000℃) | Micrographic Structure | Magnetic Properties |
---|
1250 | 1500 | 7.16 | 1.42 | 0.520 | 63.2 | 14.7 | Ferritic | 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 | – |
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