Project Description
1Cr20Al3
1Cr20Al3 is an iron-chromium-aluminium alloy (FeCrAl alloy) for use at temperatures up to 1100℃.
Equivalent Grades
Trademarks | GB | JIS | ASTM | UNS | DIN | W-Nr. | ГОСТ | BS | NF | SS |
---|---|---|---|---|---|---|---|---|---|---|
Kanthal LT | 1Cr20Al3 0Cr21Al4 | FCHW2 FCHRW2 | Ⅲ | – | – | – | – | – | – | – |
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 |
---|---|---|---|---|---|---|---|---|---|
1Cr20Al3 | ≤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/% | Hardness, HB | |
---|---|---|---|
Dia. >3.00mm (for wire) | Dia. 0.10~3.00mm (for wire) and Th. >0.20 (for strip) | ||
≥580 | ≥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 |
---|---|---|---|---|---|---|---|---|
1100 | 1500 | 7.35 | 1.23 | 0.490 | 46.9 | 13.5 | Ferritic | 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 | – |
Features
- High resistivity
- Low temperature coefficient of electric resistance
- High operating temperature
- Good oxidation resistance under high temperature
Applications
1Cr20Al3 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