Project Description
Nichrome 80
Nichrome 80 is a nickel-chromium resistance alloy for operating temperatures up to 1200℃. It has highly corrosion resistance and lower coefficient of resistance than other heater element alloys. Nichrome 80 is the most ideal resistance heating alloy.
Equivalent Grades
Trademarks | GB | JIS | ASTM | UNS | DIN | W-Nr. | ГОСТ | BS | NF | SS |
---|---|---|---|---|---|---|---|---|---|---|
Nikrothal 80 Nichrome 80 Nichrome V Chromel A Alloy A Tophet A Resistohm 80 Stablohm 650 MWS 650 Gilphy 80 | Cr20Ni80 | NCHW1 NCHRW1 | Nichrome 80 NiCr80 20 | N06003 | NiCr 80 20 | 2.4869 | Х20Н80 Х20Н80-Н | – | – | – |
Specifications
GB/T 1234-1995 (CN); JIS C2520-199(JP); ASTM B344-01(USA); DIN 17470-1984(GER); GOST 10994 & GOST 12766/1-1990 (RU)
Product Forms
Wire, Bar, Strip, Sheet, Tube, Mesh, Conveyor belt, Radiant tube heater
Chemical Composition, %
Alloy | C | Si | Mn | P | S | Cr | Ni | Al | Fe |
---|---|---|---|---|---|---|---|---|---|
Nichrome 80 | ≤0.08 | 0.75~1.60 | ≤0.60 | ≤0.02 | ≤0.015 | 20.0~23.0 | Bal | ≤0.50 | ≤1.0 |
Note: Х20Н80-Н (Add Zr:0.2-0.5%)
Mechanical Properties (RT, Annealed)
Tensile Strength, Rm/MPa | Elongation, A/% | |
---|---|---|
Dia. >3.00mm (for wire) | Dia. 0.10~3.00mm (for wire) and Th. >0.20 (for strip) | |
≥650 | ≥25 | ≥20 |
Physical Properties
Max Working Temperature, ℃ | Melting Point, ℃ | Density, g/cm3 | Resistivity, μΩ·m, 20℃ | Specific Heat, J/g·℃ | Thermal Conductivity, KJ/m·h·℃ | Average Coefficient of Linear Expansion, α×10-6/℃ (20~1000℃) | Micrographic Structure | Magnetic Properties |
---|---|---|---|---|---|---|---|---|
1200 | 1400 | 8.4 | 1.09 | 0.44 | 60.3 | 18.0 | Austenitie | Non-Magnetic |
Life Test
Test Temperature, ℃ | Continuous Service Time Hours, ℃ |
---|---|
1200 | ≥80 |
Temperature Factor of Resistivity
20℃ | 100℃ | 200℃ | 300℃ | 400℃ | 500℃ | 600℃ | 700℃ | 800℃ | 900℃ | 1000℃ | 1100℃ | 1200℃ | 1300℃ |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1.000 | 1.006 | 1.012 | 1.018 | 1.025 | 1.026 | 1.018 | 1.010 | 1.008 | 1.010 | 1.014 | 1.021 | 1.025 | – |
Features
- Great ductility
- Excellent workability and weldability under high temperature
- High and stable resistivity
- Surface oxidation resistance
- Sufficient high temperature strength
- Working temperature up 1200℃
Applications
Nichrome 80 is used for electric heating elements in home appliances and industrial furnaces.
- Electrical parts and electronic components
- Electric heating elements (home & industrial use)
- Industrial furnaces up to 1200℃
- Heating cables, mats and cords
- Flat irons
- Ironing machines
- Water heaters
- Plastic moulding dies
- Soldering irons
- Metal sheathed tubular elements and cartridge elements
Based on client’s requirement, we have succeeded in producing Х20Н80-Н. Through adding Zr element around 0.2-0.5%, it can increase alloy working temperature, and strength. It is mostly used in high temperature industry furnace.