OhmAlloy153 is a iron-chromium-aluminium alloy (FeCrAl alloy) characterized by high resistance, low coefficient of electric resistance, higher operating temperature, good corrosion resistance under high temperature.It is suitable for use at temperatures up to 1400°C.
Typical applications for OhmAlloy153 are used in heating element of the single crystal furnace, sintering furnace, ceramic calcining furnace and heat treatment furnace and diffusion furnace when the temperature is more than 1200°C.
Normal composition%
| C | P | S | Mn | Si | Cr | Ni | Al | Fe | Other |
| Max | |||||||||
| 0.05 | 0.025 | 0.025 | 0.20 | Max 0.40 | 26.5~27.8 | Max 0.60 | 5.0~7.0 | Bal. | Mo 1.8-2.2 |
Typical Mechanical properties(1.0mm)
| Yield strength | Tensile Strength | Elongation |
| Mpa | Mpa | % |
| 460 | 700 | 20 |
Typical Physical properties
| Density (g/cm3) | 7.10 |
| Electrical resistivity at 20ºC(Ωmm2/m) | 1.53 |
| Conductivity coefficient at 20ºC (WmK) | 13 |
| Coefficient of thermal expansion | |
| Temperature | Coefficient of Thermal Expansion x10-6/ºC |
| 20 ºC- 1000ºC | 16 |
| Specific heat capacity | |
| Temperature | 20ºC |
| J/gK | 0.49 |
| Melting point (ºC) | 1520 |
| Max continuous operating temperature in air (ºC) | 1400 |
| Magnetic properties | non-magnetic |
Temperature Factor of Electrical Resistivity
| 20ºC | 100ºC | 200ºC | 300ºC | 400ºC | 500ºC | 600ºC | 700ºC | 800ºC | 900ºC | 1000ºC | 1100ºC | 1200ºC |
| 1 | 0.997 | 0.996 | 0.994 | 0.991 | 0.990 | 0.990 | 0.990 | 0.990 | 0.990 | 0.990 | 0.990 | 0.990 |
Style of supply
| Alloys Name | Type | Dimension | |
| OhmAlloy153W | Wire | D=0.03mm~8mm | |
| OhmAlloy153R | Ribbon | W=0.4~40 | T=0.03~2.9mm |
| OhmAlloy153S | Strip | W=8~250mm | T=0.1~3.0 |
| OhmAlloy153F | Foil | W=6~120mm | T=0.003~0.1 |
| OhmAlloy153B | Bar | Dia=8~100mm | L=50~1000 |
Size:
Alloy bar dia:10-60mm
Resistance wire dia.0.05-10mm
Resistance strip thickness0.56-5mm, width6-50mm
Resistance strip wire thickness0.1-0.6mm,strip wire width1-6mm
Cold rolled resistance foil thickness0.05-3mm,strip width4-250mm