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:
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 point.
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.
SHANGHAI TANKII ALLOY MATERIAL CO., LTD
ALCHROME AND FECRAL ALLOY PRODUCER IN CHINA, MOST PROFESSINAL IN THE WORLD