Industrial furnace 0Cr21Al6Nb/FeCrAl resistance strip
Electric Heating Strip/Ribbon Fecral 0Cr21Al6Nb 2*25mm
1. Detail Description:
Resistance Alloy Wires is used for electrical heating element.
Haide produced high-resistance electrothermal alloy products for
the high-purity, low impurity resistivity stability, temperature
coefficient small, superficial body Sexual good, and the higher
intensity and high temperature performance and good processing may
welding nature steels varieties specifications complete. Widely
used in metallurgy, industrial stoves, household appliances,
machinery and electronics manufacturing industries do heat
resistance material.
1. FeCrAl Electrictrical Resistance Heating alloys with high
electrical resistivity, temperature coefficient of resistance is
small, high operating temperature. good corrosion resistance under
high temperature, and particularly suitable for use in a gas
containing sulfur and sulfides, low price, it is widely used in
industrial electric furnace, household appliances, far infrared
device ideal heating material.
FeCrAl type:1Cr13AI4, 0Cr21AI4, 0Cr21AI6, 0Cr25AI5, 0Cr21AI6 Nb,
0Cr27AI7Mo2 etc.Series electric flat belt, electric fire wire
2. Nickel chromium alloy with iron resistance electrothermal high
resistivity, surface body sexual well. At high temperature and high
intensity, and a good performance and processing may welding nature
widely used metallurgical, electrical, mechanical components and
electrical manufacturing industries for doing heat resistance
material. Ni-Cr Type:Cr20Ni80,Cr15Ni60, Cr20Ni35, Cr20Ni30,
Cr25Ni20 etc.Series electric flat belt, electric fire wire.
Product size:
wire dia.0.05-12mm; flat strip thickness 0.03-5mm,flat strip
width0.2-500mm.
2. Characteristics & Properties:
1) The highest working temperature up to 1250 degree.
2) Longer working life,and better technical properties
3) Higher surface load.
4) Higher resistivity.
5) Lower density.
6) Free from oxide debris
Material Designation |
Other Name |
Rough Chemical Composition |
|
|
Ni |
Cr |
Fe |
Nb |
Al |
Rest |
Nickel Chrome |
|
Cr20Ni80 |
NiCr8020 |
80.0 |
20.0 |
|
|
|
|
Cr15Ni60 |
NiCr6015 |
60.0 |
15.0 |
20.0 |
|
|
|
Cr20Ni35 |
NiCr3520 |
35.0 |
20.0 |
45.0 |
|
|
|
Cr20Ni30 |
NiCr3020 |
30.0 |
20.0 |
50.0 |
|
|
|
Iron Chrome Aluminum |
|
OCr25Al5 |
CrAl25-5 |
|
23.0 |
71.0 |
|
6.0 |
|
OCr20Al5 |
CrAl20-5 |
|
20.0 |
75.0 |
|
5.0 |
|
OCr27Al7Mo2 |
|
|
27.0 |
65.0 |
0.5 |
7.0 |
0.5 |
OCr21Al6Nb |
|
|
21.0 |
72.0 |
0.5 |
6.0 |
0.5 |
5). Fast delivery;
| C | P | S | Mn | Si | Cr | Ni | Al | Fe | Other |
| Max |
| 0.05 | 0.025 | 0.025 | 0.70 | Max 0.6 | 21.0~23.0 | Max 0.60 | 5.0~7.0 | Bal. | Nb 0.5 |
| Max Continuous Service Temp | 1350ºC |
| Resistivity at 20ºC | 1.45 ohm mm2/m |
| Density | 7.1 g/cm3 |
| Thermal Conductivity | 46.1 KJ/m·h·ºC |
| Coefficient of Thermal Expansion | 16.0×10-6/ºC |
| Melting Point | 1510ºC |
| Tensile Strength | 637~784 Mpa |
| Elongation | Min 12% |
| Section Variation Shrink Rate | 65~75% |
| Repeatedly Bend Frequency | Min 5 times |
| Continuous Service Time | - |
| Hardness | 200-260HB |
| Micrographic Structure | Ferrite |
| Magnetic Property | Magnetic |
| 20ºC | 100ºC | 200ºC | 300ºC | 400ºC | 500ºC | 600ºC | 700ºC | 800ºC | 900ºC | 1000ºC | 1100ºC | 1200ºC |
| 1 | 0.997 | 0.996 | 0.994 | 0.991 | 0.990 | 0.990 | 0.990 | 0.990 | 0.990 | 0.990 | 0.990 | 0.990 |
Standard Specification:
| Grade | Main chemical composition | Hightest temperature ℃ | Rrsistivity
µΩ.m | Melting point ℃ | Tensile strength N/mm² | Elogation
% | Working life
h/℃ | Magnetic
properties |
| Cr | Al | Ni | Fe | | | | | | | |
| OCr21Al4 | 17-21 | 3-4 | - | - | 1100 | 1.23±0.06 | 1500 | 750 | ≥12 | ≥80/1250 | magnetic |
| OCr25Al5 | 23-26 | 4.5-6.5 | - | - | 1250 | 1.42±0.07 | 1500 | 750 | ≥12 | ≥80/1300 | magnetic |
| OCr21Al6Nb | 21-23 | 5-7 | - | - | 1350 | 1.43±0.07 | 1510 | 750 | ≥12 | ≥50/1350 | magnetic |
| OCr27Al7Mo2 | 22-24 | 5-7 | - | - | 1400 | 1.53±0.07 | 1520 | 750 | ≥10 | ≥50/1350 | magnetic |
| KSC | 26.8-27.8 | 6-7 | - | - | 1350 | 1.44±0.05 | 1510 | 750 | ≥16 | ≥60/1350 | magnetic |
| Cr20Ni80 | 20-23 | - | Rest | ≤1.0 | 1200 | 1.09±0.05 | 1400 | 750 | ≥20 | ≥80/1200 | Non-magnetic |
| Cr30Ni70 | 30 | - | Rest | ≤1.0 | 1250 | 1.18±0.05 | 1380 | 750 | ≥20 | ≥50/1250 | Non-magnetic |
| Cr15Ni60 | 15-18 | - | 55 | Rest | 1150 | 1.12±0.05 | 1390 | 750 | ≥20 | ≥80/1150 | Non-magnetic |
| Cr20Ni35 | 18-21 | - | 35 | Rest | 1100 | 1.04±0.05 | 1390 | 750 | ≥20 | ≥80/1100 | Weak magnetic |
| Cr20Ni30 | 20 | - | 32 | Rest | 1100 | 1.04±0.05 | 1390 | 750 | ≥20 | ≥80/1100 | Weak magnetic |
