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[China]
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Address: Room 311, No.1211, Mudanjiang Road, Baoshan district, Shanghai
Contact name:Qiu
Ohmalloy Material Co.,Ltd |
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Iron-chromium-aluminium alloy OhmAlloy125
(Common Name:1Cr13Al4,Alkrothal 14,Alloy 750,Ohmalloy 40,Alferon
902,Alchrome 750,Resistohm 125,Aluchrom W,750 Alloy,Stablohm 750.)
OhmAlloy125 is a iron-chromium-aluminium alloy (FeCrAl alloy) characterized by Stable performance,
Anti-oxidation,Corrosion resistance,High temperature stability,Excellent coil-forming ability,Uniform and beautiful surface condition without spots.It is suitable for use at temperatures up to 950°C.
This invention relates to an alloy suitable for use in industrial and other heating applications, having a ferritic stainless steel alloy comprising, in weight %, less than 0.02% carbon; ≦0.5% silicon; ≦0.2% manganese; 10.0-40.0% chromium; ≦0.6% nickel; ≦0.01% copper; 2.0-10.0% aluminum; one or more of Sc, Y, La, Ce, Ti, Zr, Hf, V, Nb and Ta in an amount of 0.1-1.0; remainder iron and unavoidable impurities. A heating element of this alloy is provided. A diffusion furnace having such a heating element is also provided.
| C | P | S | Mn | Si | Cr | Ni | Al | Fe | Other |
| Max | |||||||||
| 0.12 | 0.025 | 0.025 | 0.70 | Max 1.0 | 12.0~15.0 | Max 0.60 | 4.0~6.0 | Bal. | - |
| Yield strength | Tensile Strength | Elongation |
| Mpa | Mpa | % |
| 455 | 630 | 22 |
| Density (g/cm3) | 7.40 |
| Electrical resistivity at 20℃(Ωmm2/m) | 1.25 |
| Conductivity coefficient at 20℃ (WmK) | 15 |
| Coefficient of thermal expansion | |
| Temperature | Coefficient of Thermal Expansion x10-6/℃ |
| 20 ℃- 1000℃ | 15.4 |
| Specific heat capacity | |
| Temperature | 20℃ |
| J/gK | 0.49 |
| Melting point (℃) | 1450 |
| Max continuous operating temperature in air (℃) | 950 |
| Magnetic properties | non-magnetic |
Temperature Factor of Electrical Resistivity
| 20℃ | 100℃ | 200℃ | 300℃ | 400℃ | 500℃ | 600℃ | 700℃ | 800℃ | 900℃ | 1000℃ | 1100℃ | 1200℃ | 1300℃ |
| 1 | 1.005 | 1.014 | 1.028 | 1.044 | 1.064 | 1.090 | 1.120 | 1.132 | 1.142 | 1.150 | - | - | - |
Style of supply
| Alloys Name | Type | Dimension | ||
| OhmAlloy125W | Wire | D=0.03mm~8mm | ||
| OhmAlloy125R | Ribbon | W=0.4~40mm | T=0.03~2.9mm | |
| OhmAlloy125S | Strip | W=8~250mm | T=0.1~3.0mm | |
| OhmAlloy125F | Foil | W=6~120mm | T=0.003~0.1mm | |
| OhmAlloy125B | Bar | Dia=8~100mm | L=50~1000mm | |
Typical applications for OhmAlloy125 are used in electric locomotive, diesel locomotive,metro vehicle and high speed moving car etc brake system brake resistor,electric ceramic cooktop,industrial furnace.
