| Customization: | Available |
|---|---|
| Surface: | bright |
| Package: | Wooden box |
|
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ALLOY 750 is a low-cost iron-chromium-aluminum electrical-resistance alloy for use in small appliances operating up to 2050 F.
ALLOY 750 possesses excellent ductility, uniformity and strength for easy fabrication.
ALLOY 750 is used in a wide range of heating elements.
Feature:
1. With long service life.
2. Heating up fast.
3. High thermal efficiency.
4. Temperature uniformity.
5. It Can be used vertically.
When being used in the rated voltage,there is no volatile matter.
It is an environmental protection electric heating wire.
And an alternative to the costly nichrome wire.
It Can be customized according to customer requirements
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.
Fe-Cr-Al alloy with high resistivity and serviceability temperature than that for NiCr alloy and also has lower price.
Iron-chromium-aluminium alloys (FeCrAl alloys) available as complete ready-to-install assemblies according to almost any customer specification.
| Chemical Composition and Main Property of Fe-Cr-Al Resistance Alloy | ||||||||
| Properties \ Grade |
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 |
opportune |
opportune |
opportune |
opportune |
opportune |
opportune |
|
| Fe |
Bal. |
Bal. |
Bal. |
Bal. |
Bal. |
Bal. |
Bal. |
|
| Nb0.5 |
Mo1.8-2.2 |
|||||||
| Max Continuous Service Temperature(oC) |
950 |
1250 |
1250 |
1250 |
1100 |
1350 |
1400 |
|
| Resisivity 20oC (Ωmm2/m) |
1.25 ±0.08 |
1.42 ±0.06 |
1.42 ±0.07 |
1.35 ±0.07 |
1.23 ±0.07 |
1.45 ±0.07 |
1.53 ±0.07 |
|
| Density(g/cm3) |
7.4 |
7.1 |
7.16 |
7.25 |
7.35 |
7.1 |
7.1 |
|
| Thermal Conductivity |
52.7 |
46.1 |
63.2 |
60.2 |
46.9 |
46.1 |
45.2 |
|
| (KJ/m@h@oC) |
||||||||
| Coefficient of Thermal Expansion(α×10-6/oC) |
15.4 |
16 |
14.7 |
15 |
13.5 |
16 |
16 |
|
| Approximate Melting Point( 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(%) |
>16 |
>12 |
>12 |
>12 |
>12 |
>12 |
>10 |
|
| Section Variation |
65-75 |
60-75 |
65-75 |
65-75 |
65-75 |
65-75 |
65-75 |
|
| Shrink Rate (%) |
||||||||
| Repeatedly Bend 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 Service Time |
no |
≥80/1300 |
≥80/1300 |
≥80/1300 |
≥80/1250 |
≥50/1350 |
≥50/1350 |
|
| Micrographic Structure |
Ferrite |
Ferrite |
Ferrite |
Ferrite |
Ferrite |
Ferrite |
Ferrite |
|
| Magnetic Property |
Magnetic |
Magnetic |
Magnetic |
Magnetic |
Magnetic |
Magnetic |
Magnetic |
|
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