OCr21Al4 FeCrAl Resistance Strip for Automobile Tail Gas
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
FeCrAl alloy series: OCr15Al5,1Cr13Al4, 0Cr21Al4, 0Cr21Al6,
0Cr25Al5, 0Cr21Al6Nb,0Cr27Al7Mo2, and etc.
Size dimension range:
Alloy Nomenclature Performance
|Main Chemical composition||Cr||18.0-21.0|
|Max. continuous service temp. of element(°C)||1100|
|Resistivity at 20ºC(μΩ·m)||1.23|
|Coefficient of lines expansion(α×10-6/ºC)||13.5|
|Melting point approx.( ºC)||1500|
|Elongation at rupture(%)||>14|
|Variation of area(%)||65-75|
|Repeat Bending frequency(F/R)||>5|
|continuous service time(Hours/ ºC)||≥80/1250|
Has been used extensively as heating elements in industrial
furnaces and electrical kilns.
Has less hot strength than Tophet alloys but much higher melting
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
7) Short delivery time.
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.