Metco 45C-NS Cobalt Chromium Nickel Tungsten Carbon Alloy Powder

Alternative and trade names
similar to Stellite 31 (Stellite is a registered trademark of Kennametal Inc.), Amdry X40, Metco 45VF-NS
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Oerlikon Metco’s CoCr[NiWSi]C products are inert gas atomized powders that are chemically homogeneous, exhibit minimal satellites and are freely flowing. They are designed and provide excellent results for a variety of applications such as laser cladding, thermal spray and PTA. These materials form coatings that are appropriate for wear and corrosion resistance in relatively high-temperature service conditions.

Metco 45C-NS is similar in chemistry to Stellite 31 (Stellite X40) and is designed to be applied using atmospheric plasma spray.

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This material data has been provided by Oerlikon Metco.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

Ashby charts




Particle size range

45 - 75 µm

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Nominal range -75 +45µm: +5% 75µm, -10% 45µm



Melting point

1340 - 1395 °C

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Chemical properties



0.5 %

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25.5 %

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10.5 %

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7.5 %

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Technological properties



Chemical composition




Handling recommendations

Store in the original container in a dry location; Tumble contents prior to use to prevent segregation. Open containers should be stored in a drying oven to prevent moisture pickup.



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Metco 45C-NS is similar to Stellite 31 (Stellite X40) and is generally applied using atmospheric plasma spray. Coatings are resistant to wear by abrasive grains, hard surfaces, fretting and particle erosion at high temperatures. They are recommended for salvage and build-up applications. The coatings are useful in gas turbine engines at high temperatures up to 850 °C (1550 °F), and for metal working components which require a combination of mechanical integrity and hot wear resistance. Metco 45C-NS can be applied using atmospheric plasma spray or combustion powder spray. It differs from Metco 45VF-NS in that it produces thicker coatings that are softer. The thickness limitation of Metco 45C-NS coatings is 1.8 mm (0.070 in). Thicker coatings may require specialized spray techniques.

Packaging size

5 lb (approx. 2.2 kg)

Processing history

Gas atomized

Processing methods

Atmospheric Plasma Spray, Combustion Powder Thermospray

Safety data sheet SDS No. 50-114