X20h30/Nicr3020 /NiCr3520 Bright and Soft Nichrome Strip
(Common Name:Ni30Cr20, N3, HAI-NiCr 30, Resistohm 30,30-20 Ni-Cr)
It is a nickel-chromium alloy (NiCr alloy) characterized by High resistivity, good oxidation resistance,very good form stability,good ductility and excellent weldability. It is suitable for use at temperatures up to 1100°C.
Typical applications for OhmAlloy104B are used in olid hot plates,open coil heaters in HVAC systems,night-storage heaters,convection heaters,heavy duty rheostats and fan heaters. And also used for heating cables and rope heaters in defrosting and de-icing elements,electric blankets and pads, car seats,baseboard heaters,floor heaters and resistors.
Normal composition%
| C |
P |
S |
Mn |
Si |
Cr |
Ni |
Al |
Fe |
Other |
| Max |
| 0.08 |
0.02 |
0.015 |
1.00 |
1.0~2.0 |
18.0~21.0 |
30.0~34.0 |
- |
Bal. |
- |
Typical Mechanical properties(1.0mm)
| Yield strength |
Tensile Strength |
Elongation |
| Mpa |
Mpa |
% |
| 340 |
675 |
35 |
Typical Physical properties
| Density (g/cm3) |
7.9 |
| Electrical resistivity at 20ºC(Om*mm2/m) |
1.04 |
| Conductivity coefficient at 20ºC (WmK) |
13 |
| Coefficient of thermal expansion |
| Temperature |
Coefficient of Thermal Expansion x10-6/ºC |
| 20 ºC- 1000ºC |
19 |
| Specific heat capacity |
| Temperature |
20ºC |
| J/gK |
0.50 |
| Melting point (ºC) |
1390 |
| Max continuous operating temperature in air (ºC) |
1100 |
| Magnetic properties |
non-magnetic |
Temperature Factors Of Electrical Resistivity
| 20ºC |
100ºC |
200ºC |
300ºC |
400ºC |
500ºC |
600ºC |
| 1 |
1.023 |
1.052 |
1.079 |
1.103 |
1.125 |
1.141 |
| 700ºC |
800ºC |
900ºC |
1000ºC |
1100ºC |
1200ºC |
1300ºC |
| 1.158 |
1.173 |
1.187 |
1.201 |
1.214 |
1.226 |
- |
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