Kanthal SW 806 is an austenitic nickel-aluminium alloy (NiAl alloy)
for use in arc and flame spray systems. The alloy produces dense,
well bonding coatings.
Typical applications for Kanthal SW 806 are bond coats, as
protective coatings against high-temperature oxidation, protective
coatings against scaling of conventional iron base alloys and as
build-up coatings for dimensional restoration.
|Al %||Ni %|
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||0.42|
|Melting point °C||1430|
|Magnetic Properties||Non magnetic|
|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 (%)||60-70|
|Hardness HV (300g)||180-250|
|Surface roughness (µm)||15-28|
*) These results are obtained when using air as spraying gas. Also
nitrogen has been used, resulting in lower rates of porosity and