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X8cral 20-6 Catalytic Converter Foil strip for Heat Element
X8cral 20-6 Catalytic Converter Foil
Nominal Analysis
21.00 Cr, 6.00 Al, Bal. Fe
Max contineous working temperature: 1250º C.
Melting Temperature: 1500º C
Thickness 0.05~0.1mm, width 1-1000mm
Usage: Catalytic converters
Material 1.4767, DIN 17470
| Brand name | 1Cr13Al4 | 0Cr25Al5 | 0Cr21Al6 | 0Cr23Al5 | 0Cr21Al4 | 0Cr21Al6Nb | 0Cr27Al7Mo2 | |
| Main chemical composition% | Cr | 12.0-15.0 | 23.0-26.0 | 19.0-22.0 | 22.5-24.5 | 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 | 4.2-5.0 | 3.0-4.2 | 5.0-7.0 | 6.0-7.0 | |
| RE | opportune amount |
opportune amount |
opportune amount |
opportune amount |
opportune amount |
opportune amount |
opportune amount |
|
| Fe | Rest | Rest | Rest | Rest | Rest | Rest | Rest | |
| Nb0.5 | Mo1.8-2.2 | |||||||
| Max.continuous service temp.of element (ºC) |
950 | 1250 | 1250 | 1250 | 1100 | 1350 | 1400 | |
| Resistivity μΩ.m,20ºC |
1.25 | 1.42 | 1.42 | 1.35 | 1.23 | 1.45 | 1.53 | |
| Density (g/cm3 ) |
7.4 | 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 | 45.2 | |
| Coefficient of lines expansion α×10-6/ºC |
15.4 | 16.0 | 14.7 | 15.0 | 13.5 | 16.0 | 16.0 | |
| Melting pointºC | 1450 | 1500 | 1500 | 1500 | 1500 | 1510 | 1520 | |
| Tensile strength Mpa |
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 | |
| Micrographic structure |
Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | Ferrite | |
| Magnetic properties |
Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | |
Fecral alloy is high resistance and electrical heating alloy. Fecral alloy can reach process temperature of 2192 to 2282 F, corresponding to oa resistance temperature of 2372 F.
It is normally used in electrical furnace, glass top hobs, quartz tube heaters, resistors, catalytic converter,heating elements etc.
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