Kanthal SW 782 is an austenitic iron-nickel alloy (FeNi alloy)
alloy for use in arc and flame spray systems. The alloy has low
resistivity and a high-temperature coefficient of resistance.
Typical applications for Kanthal SW 782 are mould coatings in the
glass industry or build-up coatings for dimensional restoration.
|Ni %||Fe %|
Depending of surface finish requirements, the coating may be
machined by turning or grinding. For rougher surface, turning using
carbide tools, light cuts and efficient cooling to avoid
overheating is recommended. Grinding in fine steps using cooling,
light pressure and clean wheels gives smoother finish.
|Wire size||Yield strength||Tensile strength||Elongation|
|Electrical resistivity at 20°C Ω mm2/m||0.37|
|Melting point °C||1435|
|Magnetic Properties||Magnetic up to approx. 530 °C (Curie point)|
|Dimension tolerance mm||+ 0/-0.05|
Typical coating properties
Summary of results obtained when spraying with a conventional Arc
Spray gun, using varying spraying parameters.
|Deposition efficiency (%)||65-78|
|Hardness HV (300g)||130-215|
|Surface roughness (µm)||7-13|
*) These results are obtained when using air as spraying gas. Also
nitrogen has been used, resulting in lower rates of porosity and