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China supplier FECRAL alloy 0Cr25Al5 electric heating resistance flat wire
OCr25Al5 Electric Resistance Heating Wire 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.
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
FeCrAl alloy series: OCr15Al5,1Cr13Al4, 0Cr21Al4, 0Cr21Al6, 0Cr23Al5, 0Cr25Al5, 0Cr21Al6Nb,0Cr27Al7Mo2, and etc.
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Alloy Nomenclature Performance
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1Cr13AL4
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0Cr25Al5
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0Cr21AL6
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0Cr23Al5
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0Cr21Al4
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0Cr21Al6Nb
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0Cr27Al7Mo2
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Main Chemical composition
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Cr
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12.0-15.0
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23.0-26.0
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19.0-22.0
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20.5-23.5
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18.0-21.0
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21.0-23.0
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26.5-27.8
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Al
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4.0-6.0
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4.5-6.5
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5.0-7.0
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4.2-5.3
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3.0-4.2
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5.0-7.0
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6.0-7.0
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Re
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opportune
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opportune
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opportune
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opportune
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opportune
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opportune
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opportune
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Fe
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Rest
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Rest
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Rest
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Rest
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Rest
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Rest
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Rest
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|
|
|
|
|
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Nb0.5
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Mo1.8-2.2
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Max. continuous service temp. of element(°C)
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950
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1250
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1250
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1250
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1100
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1350
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1400
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Resistivity at 20ºC(μΩ·m)
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1.25
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1.42
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1.42
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1.35
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1.23
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1.45
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1.53
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Density(g/cm3)
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7.4
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7.1
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7.16
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7.25
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7.35
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7.1
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7.1
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Thermal conductivity(KJ/m·h·ºC)
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52.7
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46.1
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63.2
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60.2
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46.9
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46.1
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--
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Coefficient of lines expansion(α×10-6/ºC)
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15.4
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16
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14.7
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15
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13.5
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16
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16
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Melting point approx.( ºC)
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1450
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1500
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1500
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1500
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1500
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1510
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1520
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Tensile strength(N/mm2)
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580-680
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630-780
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630-780
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630-780
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600-700
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650-800
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680-830
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Elongation at rupture(%)
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>16
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>12
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>12
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>12
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>12
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>12
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>10
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Variation of area(%)
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65-75
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60-75
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65-75
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65-75
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65-75
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65-75
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65-75
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Repeat Bending frequency(F/R)
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>5
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>5
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>5
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>5
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>5
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>5
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>5
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Hardness(H.B.)
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200-260
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200-260
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200-260
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200-260
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200-260
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200-260
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200-260
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continuous service time(Hours/ ºC)
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--
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≥80/1300
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≥80/1300
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≥80/1300
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≥80/1250
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≥50/1350
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≥50/1350
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Micrographic structure
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Ferrite
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Ferrite
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Ferrite
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Ferrite
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Ferrite
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Ferrite
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Ferrite
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Magnetic properties
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Magnetic
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Magnetic
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Magnetic
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Magnetic
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Magnetic
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Magnetic
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Magnetic
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