OCr18Al2 / OCr15Al5 / OCr13Al5 Strip Dynamic Breaking Resistor High Temp Alloys
OhmAlloy142A(CommonName:0Cr21Al6)
OhmAlloy142A is a iron-chromium-aluminium alloy (FeCrAl alloy) characterized by high resistance, low coefficient of electric resistance, high operating temperature, good corrosion resistance under high temperature.It is suitable for use at temperatures up to 1250°C.
Typical applications for OhmAlloy142A are used in electric ceramic cooktop,industrial furnace,heaters and catalytic purifier.
Normal composition%
| C | P | S | Mn | Si | Cr | Ni | Al | Fe | Other |
| Max | |||||||||
| 0.06 | 0.025 | 0.025 | 0.70 | Max 1.0 | 19.0~22.0 | Max 0.60 | 5.0~7.0 | Bal. | - |
Typical Mechanical properties(1.0mm)
| Yield strength | Tensile Strength | Elongation |
| Mpa | Mpa | % |
| 520 | 720 | 20 |
Typical Physical properties
| Density (g/cm3) | 7.16 |
| Electrical resistivity at 20℃(Ωmm2/m) | 1.42 |
| Conductivity coefficient at 20℃ (WmK) | 13 |
| Coefficient of thermal expansion | |
| Temperature | Coefficient of Thermal Expansion x10-6/℃ |
| 20 ℃- 1000℃ | 14.7 |
| Specific heat capacity | |
| Temperature | 20℃ |
| J/gK | 13 |
| Melting point (℃) | 1500 |
| Max continuous operating temperature in air (℃) | 1250 |
| Magnetic properties | non-magnetic |
Temperature Factor of Electrical Resistivity
| 20℃ | 100℃ | 200℃ | 300℃ | 400℃ | 500℃ | 600℃ | 800℃ | 900℃ | 1000℃ | 1100℃ | 1200℃ | 1300℃ |
| 1 | 1.000 | 1.002 | 1.006 | 1.011 | 1.020 | 1.037 | 1.046 | 1.049 | 1.052 | 1.055 | 1.058 | - |
Style of supply
| Alloys Name | Type | Dimension | ||
| OhmAlloy142AW | Wire | D=0.03mm~8mm | ||
| OhmAlloy142AR | Ribbon | W=0.4~40 | T=0.03~2.9mm | |
| OhmAlloy142AS | Strip | W=8~250mm | T=0.1~3.0 | |
| OhmAlloy142AF | Foil | W=6~120mm | T=0.003~0.1 | |
| OhmAlloy142AB | Bar | Dia=8~100mm | L=50~1000 | |
Ohmalloy Material Co.,Ltd is a high-tech enterprise which specialized in making all kinds of alloy such as high resistance alloy, low-resistance copper nickel alloy, precision alloy, FeCrAl alloy and thermocouple Alloy.
Ohmalloy Material Co.,Ltd have a full production line from melting, surface cleaning, rolling and slitting, full set of testing machine and can meet all kinds of technical requirement from customer. Our product is widely used in heating equipment, big steel mill, mineral, electrical equipment, food machinery, auto industry, aerospace industry. Our product not only is popular in domestic market, but also been exported to all over the world.
Our company aims to be the best-quality alloy producer in the world. We insist on developing the more advanced alloy strip technology, to serve all the customer, improve people’s living level, make a more green earth in the future
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