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Kanthal SW 010 (Spray wire)

Datasheet updated 2013-03-19 12:55:07 (supersedes all previous editions)

Kanthal SW 010 is a ferritic iron-chromium-aluminum alloy (FeCrAl alloy) for use in arc and flame spray systems. The alloy produces dense, well bonding coatings, resistant to high-temperature oxidation and corrosion.

Typical applications for Kanthal SW 010 are bond coats in high-temperature coating systems, protective coatings in high-temperature atmospheres containing sulphur or carbon and protective coatings against scaling of conventional low alloy steels.

Chemical composition

C % Si % Mn % Cr % Al % Fe %
Nominal composition Bal.
Min - - - 20.5 5.3
Max 0.08 0.7 0.4 23.5 6.3


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.

Mechanical properties

Wire size Yield strength Tensile strength Elongation
Ø Rp0.2 Rm A
mm MPa MPa %
1.6 830 930 5

Physical properties

Density g/cm3 7.10
Electrical resistivity at 20°C Ω mm2/m 1.45
Melting point 1500 °C
Magnetic Properties The material is magnetic up to approximately 600 °C (the Curie point).
Dimension tolerance mm + 0/-0.05

Young's Modulus
Temperature °C 20
GPa 220

Typical coating properties

Summary of results obtained when spraying with a conventional Arc Spray gun, using varying spraying parameters.

Deposition efficiency (%) 62-78
Hardness HV (300g) 165-280
Surface roughness (µm) 11-16
Porosity (%) 1-6*
Oxides (%) 5-20*

*) These results are obtained when using air as spraying gas. Also nitrogen has been used, resulting in lower rates of porosity and oxides.


Personnel working with thermal spraying should be aware of the hazards connected to the process. They should be familiar with the use of equipment regarding, i.e. eye, skin, hearing and respiratory protection.

Personnel should be familiar with safety regulations regarding the complete process, including spraying and the spray equipment used. This product contains elements, which in certain combinations may be dangerous to your health. Material Safety Data Sheets are provided by Kanthal for this product, and should be read and understood before using the material.

Not following these instructions may danger your health.

Disclaimer: Recommendations are for guidance only, and the suitability of a material for a specific application can be confirmed only when we know the actual service conditions. Continuous development may necessitate changes in technical data without notice. This datasheet is only valid for Kanthal materials.

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