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[China]
Trade Verify
Address: No. 388 Pangu Road, Baoshan district, Shanghai, 201999, China
Contact name:Martin Lee
Shanghai Tankii Alloy Material Co.,Ltd |
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Verified Suppliers
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FeCrAl Lead-out Plate Oxidized Surface Electric Furnace Square Rod
Description
Fe-Cr-Al alloy wires are made of iron chromium aluminum base alloys
containing small amounts of reactive elements such as yttrium and
zirconium and produced by smelting, steel rolling, forging,
annealing, drawing, surface treatment, resistance control test,
etc.
The high aluminum content, in combination with the high chromium
content let the scaling temperature can reach to 1425ºC (2600ºF);
Fe-Cr-Al wire was shaped by means of high speed automatic cooling
machine of which the power capacity is controlled by computer, they
are available as wire and ribbon(strip).
Product forms and size range
Round wire
0.010-12 mm (0.00039-0.472 inch) other sizes are available on
request.
Ribbon (flat wire)
Thickness: 0.023-0.8 mm (0.0009-0.031 inch)
Width: 0.038-4 mm (0.0015-0.157 inch)
Width/thickness ratio max 60, depending on alloy and tolerance
Other sizes are available on request.
Resistance electric heating wire has strong antioxidant properties,
but a variety of gases in furnaces such as air, carbon, sulfur,
hydrogen and nitrogen atmosphere, still have a certain impact on
it.
Although these heating wires all have had antioxidant treatment,
the transportation, winding, installation and other process will
cause damage to a certain extent and reduce its service life.
In order to extend the service life, customers need to do pre
oxidation treatment before using. The method is to heat alloy
elements which have installed completely in the dry air to the
temperature (lower 100-200C than its maximum using temperature),
heat preservation for 5 to 10 hours, then cooling slowly with
furnace.
Application
Our products (FeCrAl) high resistance electric heating wire
materials are salable and widely used for making heating equipment
like industrial furnace, civil heating appliance, various
electrical resistors and locomotive braking resistor, infrared
equipment, liquefied gas infrared heat-resisting net, different
kinds of igniting and radiating electrodes and voltage-regulating
resistors for motors and so on in Metallurgical machinery, medical,
chemical, ceramics, electronics, electrical appliances, glass and
other civil or industrial fields.
Main characteristics of Fe-Cr-Al- high resistances electric heating
alloys
| 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 | |
Features and advantages
1. High using temperature, the maximum using temperature can reach
1400C (0Cr21A16Nb, 0Cr27A17Mo2, etc.)
2. Low temperature coefficient of resistance
3. Lower thermal expansion coefficient than the Ni-base
super-alloys.
4. High electrical resistivity
5. Good corrosion resistance under high temperature, especially
under the atmosphere containing sulfides
6. High surface load
7. Creep-resistant
8. Lower raw-material cost, Lower density and cheaper price
compared with Nichrome wire.
9. Superior oxidation resistance at 800-1300ºC
10. Long service life
Our Services
1. For all your requirements about us or your requiry, we will
reply your details within 24 hours.
2. We have a good service, friendly sales and service who can speak
fluente English language.
3. We provide OEM service, you can customize the retail box packing
and other things
4.We have experienced engineers rhat can help you make better uses
of the product.
