0Cr24Al6Re
0Cr24Al6Re is a ferric iron-chromium-aluminium(FeCrAl) high resistance heating alloy for using at temperature up to 1400℃. This alloy is almost equal to Kanthal@APM, and in China we called it HRe. HRe is mostly made into resistance heating wire/ribbon used in the high temperature furnace. The alloy is characterized by high resistivity and very good oxidation resistance.
Specifications
GB/T 1234-1995 (CN);
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 | Other |
---|
0Cr24Al6Re | ≤0.05 | ≤0.40 | ≤0.20 | ≤0.025 | ≤0.025 | 22.5~26.0 | ≤0.60 | 5.0~7.0 | Bal | Add La+Ce, Co, Ti, Nb, Y, Zr, Hf ect, total 0.04~1.00 |
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) |
≤680 | ≥12 | ≥10 | 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 |
---|
1400 | 1520 | 7.1 | 1.48 | 0.49 | 45.2 | 16.0 | Ferrite | Magnetic |
Life Test
Test Temperature, ℃ | Continuous Service Time Hours, ℃ |
---|
1350 | ≥80 |
Temperature Factor of Resistivity
20℃ | 100℃ | 200℃ | 300℃ | 400℃ | 500℃ | 600℃ | 700℃ | 800℃ | 900℃ | 1000℃ | 1100℃ | 1200℃ | 1300℃ |
---|
1.000 | 0.995 | 0.993 | 0.990 | 0.988 | 0.986 | 0.984 | 0.982 | 0.980 | 0.978 | 0.976 | 0.976 | 0.975 | 0.975 |
Features
- High resistivity
- Low temperature coefficient of electric resistance
- High working temperature
- Excellent surface oxidation resistance under high temperature as well as in corrosive atmosphere
- The unique combination of excellent oxidation properties and form stability contributes to long element service life
Applications
- Heating elements in high temperature furnaces for firing of ceramics
- Element in heat treatment furnaces
- Elements in ladoratory furnaces
- Furnaces for electronic industries
- Diffusion furnaces