Shanghai Tankii Alloy Material Co.,Ltd
Shanghai Tankii Alloy Material Co.,Ltd First Quality, Sincere Service
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Cr22Al4.5Fe FeCrAl Alloy Flat /Round Bar With Good Surface Used For Electrical Heating Elements
Tankii DESCRIPTION OF FECRAL ALLOYS: KD alloys, Alchrome / Aluchrome I / KD / KDS
FeCrAl alloys are characterized by excellent oxidation resistance and very good form stability resulting in long element life.
They are typically used in electrical heating elements in industrial furnaces and home appliances.
FeCrAl alloys have higher service temperature than NiCr Alloys and much lower prices. But they have lower stability and flexibility, easily to be fragile after a time circle
Cr22Al4.5Fe FeCrAl Alloy Flat /Round Bar With Good Surface Used For Electrical Heating Elements
TANKII FECRAL ALLOYS CHARACTERISTICS:
1) Manufactured according to international quality. System (ISO9001).
2) Stable resistance and long-life span.
3) Mill test certificate will be provided after production.
4) Size range wire:.0.018-10mm ribbons: 0.05-0.2*2-6mm strips: 0.05-5*5-250mm.
5) Good packing methods to keep goods no damage during delivery.
6) Customized lable, packing, OEM service..
7) 24 hours after-sale service.
Cr22Al4.5Fe FeCrAl Alloy Flat /Round Bar With Good Surface Used For Electrical Heating Elements
Application:
Heating elements for furnaces
Heating lead-out rod for furnaces.
Main properties and technical parameters of fe-cr-al electrothermal resistance alloy:
The fe cr al electrothermal resistance alloy has the characteristics of high resistivity, low resistance temperature coefficient and high service temperature. Good corrosion resistance at high temperature, especially suitable for use in the atmosphere containing sulfur and sulfide, and low price, This alloy is an ideal heating material for industrial electric furnaces, household appliances, far-infrared devices.
Main advantages and disadvantages of iron chromium and aluminum alloy series:
Advantages: iron, chromium and aluminum electrothermal alloy with high service temperature, the service temperature is up to 1400 degrees, (0Cr21A16Nb, 0Cr27A17Mo2, etc.), long service life, high surface load, good oxidation resistance, high resistivity, cheap price, etc. Disadvantages: The high temperature strength is low, with the temperature increases the alloy's plasticity also increases, the element is easily deformed, not easy to te bent and repaired.
Cr22Al4.5Fe FeCrAl Alloy Flat /Round Bar With Good Surface Used For Electrical Heating Elements
MAIN CHARACTERISTICS OF TANKII FECRAL HEATING ALLOYS
Alloy Nomenclature Performance | 1Cr13Al4 | 0Cr25Al5 | 0Cr21Al6 | 0Cr23Al5 | 0Cr21Al4 | 0Cr21Al6Nb | 0Cr27Al7Mo2 | |
Main Chemical composition | Cr | 12.0-15.0 | 23.0-26.0 | 19.0-22.0 | 20.5-23.5 | 18.0-21.0 | 21.0-23.0 | 26.5-27.8 |
Al | 4.0-6.0 | 4.5-6.5 | 5.0-7.0 | 4.2-5.3 | 3.0-4.2 | 5.0-7.0 | 6.0-7.0 | |
Re | opportune | opportune | opportune | opportune | opportune | opportune | opportune | |
Fe | Rest | Rest | Rest | Rest | Rest | Rest | Rest | |
Nb0.5 | Mo1.8-2.2 | |||||||
Max. continuous service temp. of element(°C) | 950 | 1250 | 1250 | 1250 | 1100 | 1350 | 1400 | |
Resistivity at 20ºC(μΩ·m) | 1.25 | 1.42 | 1.42 | 1.35 | 1.23 | 1.45 | 1.53 | |
Density(g/cm3) | 7.40 | 7.10 | 7.16 | 7.25 | 7.35 | 7.10 | 7.10 | |
Thermal conductivity(KJ/m·h·ºC) | 52.7 | 46.1 | 63.2 | 60.2 | 46.9 | 46.1 | ||
Coefficient of lines expansion(α×10-6/ºC) | 15.4 | 16.0 | 14.7 | 15.0 | 13.5 | 16.0 | 16.0 | |
Melting point approx.( ºC) | 1450 | 1500 | 1500 | 1500 | 1500 | 1510 | 1520 | |
Tensile strength(N/mm2) | 580-680 | 630-780 | 630-780 | 630-780 | 600-700 | 650-800 | 680-830 | |
Elongation at rupture(%) | >16 | >12 | >12 | >12 | >12 | >12 | >10 | |
Variation of area(%) | 65-75 | 60-75 | 65-75 | 65-75 | 65-75 | 65-75 | 65-75 | |
Repeat Bending frequency(F/R) | >5 | >5 | >5 | >5 | >5 | >5 | >5 | |
Hardness(H.B.) | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | |
continuous servicetime(Hours/ ºC) | -- | ≥80/1300 | ≥80/1300 | ≥80/1300 | ≥80/1250 | ≥50/1350 | ≥50/1350 | |
Micrographic structure | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | |
Magnetic properties | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | |
NiChrome bar or flat bar can also be used for bolt for furnaces.
Cr22Al4.5Fe FeCrAl Alloy Flat /Round Bar With Good Surface Used For Electrical Heating Elements
Photos:
Application:Heater lead-out rod:
Cr22Al4.5Fe FeCrAl Alloy Flat /Round Bar With Good Surface Used For Electrical Heating Elements
Please feel free to let me know if you have any inquiry on KD alloy bolt, bar, flat bar or rod.