OCr21Al4 FeCrAl Resistance Strip for Automobile Tail Gas Purification
OCr21Al4 is one kind of normal material of Fe-Cr-Al alloy.
FeCrAl alloy has the characteristic of high resistivity,low temperature resistance coefficient,high operating temperature,good anti-oxidation and anti-corrosion under high temperature.
It is widely used in industrial furnace, household appliances, industry furnace, metallurgy, machinery, aircraft, automotive, military and other industries producing heating elements and resistance elements.
FeCrAl alloy series: OCr15Al5,1Cr13Al4, 0Cr21Al4, 0Cr21Al6, 0Cr25Al5, 0Cr21Al6Nb,0Cr27Al7Mo2, and etc.
Size dimension range:
Wire: 0.01-10mm
Ribbons: 0.05*0.2-2.0*6.0mm
Strip: 0.05*5.0-5.0*250mm
Bar:10-50mm
Specification
Alloy Nomenclature Performance | 0Cr21Al4 |
| Main Chemical composition | Cr | 18.0-21.0 |
| Al | 3.0-4.2 |
| Re | opportune |
| Fe | Rest |
| | |
| Max. continuous service temp. of element(°C) | 1100 |
| Resistivity at 20ºC(μΩ·m) | 1.23 |
| Density(g/cm3) | 7.35 |
| Thermal conductivity(KJ/m·h·ºC) | 46.9 |
| Coefficient of lines expansion(α×10-6/ºC) | 13.5 |
| Melting point approx.( ºC) | 1500 |
| Tensile strength(N/mm2) | 600-700 |
| Elongation at rupture(%) | >14 |
| Variation of area(%) | 65-75 |
| Repeat Bending frequency(F/R) | >5 |
| Hardness(H.B.) | 200-260 |
| continuous service time(Hours/ ºC) | ≥80/1250 |
| Micrographic structure | Ferrite |
| Magnetic properties | Magnetic |
Has been used extensively as heating elements in industrial furnaces and electrical kilns.
Has less hot strength than Tophet alloys but much higher melting point.
Our Services
1) Pass ISO9001 and SGS certification.
2) Samples free available.
3) OEM service.
4) Manufacturer test certificate will be provided If necessary.
5) Good packing methods to keep goods safe.
6) Choose safe,quick,price reasonable forwarder to transport for our customers.
7) Short delivery time.
Company profie
Shanghai Tankii Alloy Material Co., Ltd. Focus on the production of resistance alloy(nichrome Alloy, FeCrAl Alloy, copper nickel alloy, thermocouple wire, precision alloy and thermal spray alloy in the form of wire, sheet, tape, strip, rod and plate. We've already got ISO9001 quality system certificate and approval of ISO14001 environmental protection system. We own a complete set of advanced production flow of refining, cold reduction, drawing and heat treating etc. We also proudly have independent R&D capacity.
Shanghai Tankii Alloy Material Co., Ltd has accumulated lots of experiences over 35 years in this field. During these years, more than 60 management elites and high science and technology talents were employed. They participated in every walk of the company life, which make our company keep blooming and invincible in the competitive market. Based on the principle of "first quality, sincere service", our managing ideology is pursuing technology innovation and creating the top brand in the alloy field. We persist in Quality - the foundation of the survival. It is our forever ideology to serve you with full heart and soul. We committed to provide customers all over the world with high-quality, competitive products and perfect service.
Our products, such us nichrome alloy, precision alloy, thermocouple wire, fecral alloy, copper nickel alloy, thermal spray alloy have been exported to over 60 countries in the world. We are willing to establish strong and long-time partnership with our customers. Most complete range of products dedicated to Resistance, Thermocouple and Furnace manufacturers Quality with end to end production control Technical support and Customer Service.
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