Ohmalloy Material Co.,Ltd
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FeCrAl Heating Wire 0Cr27Al7Mo2 Wire SWG15 1.83mm For Walking Beam Furnace
OhmAlloy153
(Common Name:0Cr27Al7Mo2)
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.
Typical Physical properties
| Density (g/cm3) | 7.10 |
| Electrical resistivity at 20℃(Ωmm2/m) | 1.53 |
| Conductivity coefficient at 20℃ (WmK) | 13 |
| Coefficient of thermal expansion | |
| Temperature | Coefficient of Thermal Expansion x10-6/℃ |
| 20 ℃- 1000℃ | 16 |
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 |
| Specific heat capacity | |
| Temperature | 20℃ |
| J/gK | 0.49 |
| Melting point (℃) | 1520 |
| Max continuous operating temperature in air (℃) | 1400 |
| Magnetic properties | non-magnetic |
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 | |
Temperature Factor of Electrical Resistivity
| 20℃ | 100℃ | 200℃ | 300℃ | 400℃ | 500℃ | 600℃ | 700℃ | 800℃ | 900℃ | 1000℃ | 1100℃ | 1200℃ |
| 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 |