
NICKEL-CHROMIUM 80 (NiCr) wire alloys for use at temperatures up to1200°C
NICKEL-CHROMIUM 80 is an austenitic nickel-chromium alloy (NiCr alloy) for use at temperatures up to 1200°C (2190°F). The alloy is characterized by high resistivity, good oxidation resistance and very good form stability. It has good ductility after use and excellent weldability.
NICKEL-CHROMIUM is used for 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.
Due to extremely good adhesion properties of the surface oxide, NICKEL-CHROMIUM 80 offers superior service life compared to competitive nickel-chromium alloys.
C % | Si % | Mn % | Cr % | Ni % | Fe % | Trace elements | |
---|---|---|---|---|---|---|---|
Nominal composition | Bal. | Added | |||||
Min | - | 1.0 | - | 19.0 | - | - | - |
Max | 0.10 | 1.7 | 1.0 | 21.0 | - | 2.0* | - |
* Fe< 1.0 on request
Wire size | Yield strength | Tensile strength | Elongation | Hardness |
---|---|---|---|---|
Ø | Rp0.2 | Rm | A | |
mm | MPa | MPa | % | Hv |
1.0 | 420 | 810 | 30 | 180 |
4.0 | 300 | 725 | 30 | 160 |
Temperature °C | 900 |
---|---|
MPa | 100 |
Ultimate tensile strength - deformation rate 6.2 x 10-2/min
Temperature °C | 800 | 1000 |
---|---|---|
MPa | 15 | 4 |
Density g/cm3 | 8.30 |
---|---|
Electrical resistivity at 20°C Ω mm2/m | 1.09 |
Temperature°C | 100 | 200 | 300 | 400 | 500 | 600 | 700 | 800 | 900 | 1000 | 1100 | 1200 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Ct | 1.01 | 1.02 | 1.03 | 1.04 | 1.04 | 1.04 | 1.04 | 1.04 | 1.04 | 1.05 | 1.06 | 1.07 |
Temperature °C | Thermal Expansion x 10-6/K |
---|---|
20 - 250 | 14.1 |
20 - 500 | 14.9 |
20 - 750 | 16.0 |
20 - 1000 | 17.2 |
Temperature °C | 20 | 100 | 200 | 300 | 400 | 500 | 600 | 700 | 800 | 900 | 1000 | 1100 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
W m-1 K-1 | 15 | 15 | 15 | 15 | 17 | 19 | 21 | 22 | 24 | 26 | 28 | 30 |
Temperature °C | 20 | 100 | 200 | 300 | 400 | 500 | 600 | 700 | 800 | 900 | 1000 | 1100 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
kJ kg-1 K-1 | 0.46 | 0.46 | 0.48 | 0.50 | 0.52 | 0.54 | 0.56 | 0.60 | 0.63 | 0.65 | 0.67 | 0.70 |
Melting point °C | 1400 |
---|---|
Max continuous operating temperature in air °C | 1200 |
Magnetic properties | The material is non-magnetic |
Emissivity - fully oxidized material | 0.88, |
Ohmalloy Material Co.,Ltd
Ohmalloy Material Co.,Ltd is a high-tech enterprise which specialized in making all kinds of alloy such as high resistance alloy, low-resistance copper nickel alloy, precision alloy, FeCrAl alloy and thermocouple Alloy.
Ohmalloy Material Co.,Ltd have a full production line from melting, surface cleaning, rolling and slitting, full set of testing machine and can meet all kinds of technical requirement from customer. Our product is widely used in heating equipment, big steel mill, mineral, electrical equipment, food machinery, auto industry, aerospace industry. Our product not only is popular in domestic market, but also been exported to all over the world.
Our company aims to be the best-quality alloy producer in the
world. We insist on developing the more advanced alloy strip
technology, to serve all the customer, improve people’s living
level, make a more green earth in the future