Cr15Al5 (Х15Ю5) is a kind of high electric resistance precision alloys. It is an Fe-Cr-Al alloy adding Ti 0.2~0.5% for using at temperature up to 1150℃.
Equivalent Grades
| Trademark | GB | GOST | ASTM | UNS | DIN | W.Nr. | NF | BS | JIS | SS |
|---|
| – | – | Х15Ю5 | – | – | – | – | – | – | – | – |
Chemical Composition, %
| Alloy | C | Si | Mn | P | S | Cr | Ni | Ti | Al | Fe |
|---|
| Cr15Al5 | ≤0.08 | ≤0.70 | ≤0.70 | ≤0.030 | ≤0.015 | 13.5-15.5 | ≤0.60 | 0.2~0.6 | 4.5-5.5 | 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 |
|---|
| 1350 | 1500 | 7.28 | 1.24-1.34 | 0.460 | 15.0 | 16.0 | Ferritic | Magnetic |
Life Test
| Test Temperature, ℃ | Continuous Service Time Hours, ℃ |
|---|
| 1300 | ≥50 |
Temperature Factor of Resistivity
| 20℃ | 100℃ | 200℃ | 300℃ | 400℃ | 500℃ | 600℃ | 700℃ | 800℃ | 900℃ | 1000℃ | 1100℃ | 1200℃ | 1300℃ |
|---|
| 1.000 | 1.004 | 1.013 | 1.025 | 1.041 | 1.062 | 1.090 | 1.112 | 1.126 | 1.135 | 1.14 | – | – | – |
Available Products and Specifications
| Rod, Bar, Wire and Forgings | GOST 12766.1-1990, GOST 12766.3-1990, GOST 12766.4-1990, GOST 12766.5-1990 |
|---|
| Plate, Sheet and Strip | GOST 12766.2-1990 |
| Pipe and Tube | – |
| Welding Product | – |
| Others | GOST 10994 |
Features
- High resistivity
- Low temperature coeffcient of electric resistance
- High operating temperature up to 1300℃
- Good oxidation resistance under high temperature
Applications
Cr15Al5 (Х15Ю5) is used in home appliances and industrial furnaces.
- Electrical heating elements in high temperature furnaces for heat treatment
- Ceramic, glass, steel and electronics industries
- Terminals to furnace elements
- Mesh, conveyor belt in furnaces
- Metal sheathed tubular elements for dishwashers
- Elements embeded in ceramics for panel heaters
- Cartridge elements in metal dies
- Heating cables and rope heaters in defrosting and deicing elements
- Mica elements used in irons
- Quartz tube heaters for space heating
- Industrial infrared dryers
- Coils on molded ceramic fibre for boiling plates with ceramic hobs
- Bead insulated coils for panel heaters
- Suspended coil elements for air heaters in laundry dryers
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