High Resistivity Heating Strip FeCrAl Alloy 0Cr21Al6Nb with
oxidation surface
About our company
- Shanghai Tankii Alloy is a professional manufacturer of High
Resistance heating alloys for more than 30 years in China. Now we
can supply more than 5000 tons for different types of nickel base
alloy per year.
- We can supply Ni-Cr, Fe-Cr-Al,Ni-Fe, Supper alloys, welding
materials in forms of wire,strip,bar,sheet,pipe etc. with different
size,Such as Ni80Cr20,Monel,Inconel,Incoloy,Invar,
TANKII,hastelloy,kover and so on.
- We can also customize the goods apply to customer. Now we supply
nickel base alloys for companies from USA, Europe, Russia, Ukraine,
India, Korea, Iran,UK, etc.
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.
Forms:wire, bar, strip,sheet / plate,forging,tube/pipe,etc.
Characteristics:
1) The highest working temperature up to 1350 degree.
2) Longer working life,and better technical properties
3) Higher surface load.
4) Higher resistivity.
5) Lower density.
6) Free from oxide debris
Main technical characteristics of FeCrAl Alloy:
Brand Property | 1Cr13Al4 | 1Cr21Al4 | 0Cr21Al6 | 0Cr23Al5 | 0Cr25Al5 | 0Cr21Al6Nb | 0Cr27Al7Mo2 |
| Major chemical component% | Cr | 12.0-12.5 | 17.0-21.0 | 19.0-22.0 | 20.5-23.5 | 23.0-26.0 | 21.0-23.0 | 26.5-27.8 |
| Al | 4.0-6.0 | 2.0-4.0 | 5.0-7.0 | 4.2-5.3 | 4.5-6.5 | 5.0-7.0 | 6.0-7.0 |
| Fe | Balance | Balance | Balance | Balance | Balance | Balance | Balance |
| Re | Appropriate | Appropriate | Appropriate | Appropriate | Appropriate | Appropriate | Appropriate |
| | | | | | Addition Nb:0.5 | Addition Mo:1.8-2.2 |
| Component max. use temperature | 950 | 1100 | 1250 | 1250 | 1250 | 1350 | 1400 |
| Melting Point | 1450 | 1500 | 1500 | 1500 | 1500 | 1510 | 1510 |
| Density g/cm3 | 7.40 | 7.35 | 7.16 | 7.25 | 7.10 | 7.10 | 7.10 |
| Resistivity μΩ·m,20 | 1.25±0.08 | 1.23±0.06 | 1.42±0.07 | 1.35±0.06 | 1.45±0.07 | 1.45±0.07 | 1.53±0.07 |
| Tensile Strength Mpa | 588-735 | 637-784 | 637-784 | 637-784 | 637-784 | 637-784 | 684-784 |
| Extension rate% | 16 | 12 | 12 | | 12 | 12 | 10 |
| Repeated bending frequency | | | 5 | 5 | 5 | 5 | 5 |
| Fast lift h/ | - | | | 80/1300 | 80/1300 | | 50/1350 |
| Specific Heat J/g. | 0.490 | 0.490 | 0.520 | 0.460 | 0.494 | 0.494 | 0.494 |
| Heat Conduction Coefficient KJ/M.h | 52.7 | 46.9 | 63.2 | 60.1 | 46.1 | 46.1 | 45.2 |
Linear expansion coefficient aX10-6/ (20-1000) | 15.4 | 13.5 | 14.7 | 15.0 | 16.0 | 16.0 | 16.0 |
| Hardness HB | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 | 200-260 |
| Microstructure | Ferritic | Ferritic | Ferritic | Ferritic | Ferritic | Ferritic | Ferritic |
| Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic |
| Category | Thickness ( mm ) | Tolerance ( mm) | |
| Common precision | High precision | |
| Cold-rolled strip | 0.05 ~ 0.1 | ±0.01 | ±0.005 | |
| 0.1 ~ 0.2 | ±0.015 | ±0.01 | |
| 0.2 ~ 0.5 | ±0.02 | ±0.015 | |
| 0.5 ~ 1.0 | ±0.03 | ±0.025 | |
| 1.0 ~ 1.8 | ±0.04 | ±0.03 | |
| 1.8 ~ 2.5 | ±0.05 | ±0.04 | |
| 2.5 ~ 4.0 | ±0.06 | ±0.05 | |
| Hot-rolled Strip | 2.5 ~ 5.0 | ±0.25 | ±0.2 | |
| 5.0 ~ 7.0 | ±0.3 | ±0.25 | |
| 7.0 ~ 10.0 | ±0.4 | ±0.35 | |
| 10.0 ~ 20.0 | ±0.5 | ±0.45 | |
| | | | |
| | | | |
| The allowable tolerance of alloy strip GB/T1234-2012 |
| Category | Width ( mm ) | Tolerance ( mm ) |
| side cut | Nonside cut |
| Common precision | High precision |
| Cold-rolled Strip | 5.0 ~ 10.0 | ±0.2 | ±0.1 | -0.6 |
| 10.0 ~ 20.0 | -0.8 |
| 20.0 ~ 30.0 | -1 |
| 30.0 ~ 50.0 | ±0.3 | ±0.15 | -1.2 |
| 50.0 ~ 100.0 | ±1.0 |
| 100.0 ~ 200.0 | ±0.5 | ±0.25 | ±1.5 |
| 200.0 ~ 300.0 | ±1.8 |
| Hot-rolled Strip | 15.0 ~ 60.0 | / | ±1.5 |
| 60.0 ~ 200.0 | ±2.5 |
| 200.0 ~ 300.0 | ±3.0 |
Applications
0Cr21Al6 Iron-chrome-aluminium electric resistor strip is widely used for making electric heating elements in home appliances
and industrial furnaces. Typical applications are flat irons,
ironing machines, water heaters, plastic moulding dies, soldering
irons, metal sheathed tubular elements and cartridge elements
