
Ohmalloy 109
(Common Name:Ni80Cr20, Nikrothal8 ,MWS-650, NiCrA, Tophet A, HAI-NiCr 80, Chromel A, Alloy A, Alloy 650, N8, Resistohm 80, Stablohm 650, Nichorme V, Nikrothal 80.)
Ni80Cr20 is a nickel-chromium alloy (NiCr alloy) characterized by high resistivity, good oxidation resistance and very good form stability. It is suitable for use at temperatures up to 1200°C,and hold a superior service life compared to Iron chromium alumium alloys
Products Details
1). Chemical composition(%)
C | P | S | Mn | Si | Cr | Ni | Al | Fe | Other |
0.03 | 0.02 | 0.15 | 0.60 | 0.75-1.60 | 20.0~23.0 | Bal. | Max0.5 | Max1.0 | _ |
2). Typical Mechanical properties(1.0mm)
Yield strength | Tensile Strength | Elongation |
Mpa | Mpa | % |
420 | 810 | 30 |
3). Typical Physical properties
Density (g/cm3) | 8.4 |
Electrical resistivity at 20ºC(Ωmm2/m) | 1.09 |
Conductivity coefficient at 20ºC (WmK) | 15 |
4). Coefficient of Thermal Expansion
Temperyure | Coefficient of Thermal Expansion x10-6/ºC |
20 ºC- 1000ºC | 20 |
5). Specific Heat Capacity
Temperature | 20ºC |
J/gK | 0.46 |
Melting point (ºC) | 1400 |
Max continuous operating temperature in air (ºC) | 1200 |
Magnetic properties | non-magnetic |
6). Temperature Factors for Electrical Resistivity
20ºC | 100ºC | 200ºC | 300ºC | 400ºC | 600ºC |
1 | 1.006 | 1.012 | 1.018 | 1.025 | 1.018 |
700ºC | 800ºC | 900ºC | 1000ºC | 1100ºC | 1300ºC |
1.01 | 1.08 | 1.01 | 1.014 | 1.021 | - |
7) Style of Supply
Alloys name | Type | Dimension | ||
OhmAlloy109W | Wire | D=0.03mm~8mm | ||
OhmAlloy109R | Ribbon | W=0.4~40 | T=0.03~2.9mm | |
OhmAlloy109S | Strip | W=8~250mm | T=0.1~3.0 | |
OhmAlloy109F | Foil | W=6~120mm | T=0.003~0.1 | |
OhmAlloy109B | Bar | Dia=8~100mm | L=50~1000 |
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