Cobalt Chromium Nickel Tungsten Carbon Alloy Powder (similar to Stellite 31)

Alternative and trade names
similar to Stellite 31 (Stellite is a registered trademark of Kennametal Inc.), Amdry X40, Metco 45C-NS, 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.

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

Amdry X40 can also be used as complimentary additive to Oerlikon Metco's ADB brazing alloys to facilitate crack and surface repairs.

The materials Amdry X40, Metco 45C-NS and Metco 45VF-NS of this material family differ primarily in their particle size distribution.



Particle size range


5 - 125 µm

Amdry X40: -125 +45µm: +5% 125µm, -5% 45µm; Metco 45C-NS: -75 +45µm: +5% 75µm, -10% 45µm; Metco 45VF-NS: -45 +5µm: +1% 45µm, -2% 5µm


Melting point


1340 - 1395 °C

Chemical properties


Weight %






25.5 %


10.5 %


7.5 %


0.5 %

Technological properties


Amdry X40: Special Order

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.



Order number

Amdry X40: 1002391, Metco 45C-NS: 1000081, Metco 45VF-NS: 1000083


Amdry X40, Metco 45C-NS and Metco 45VF-NS are similar to Stellite 31 (Stellite X40) and are generally applied using atmospheric plasma spray. They have the same elemental composition, but are differentiated by particle size. 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. Metco 45VF-NS is intended to be used for thin coatings, up to a maximum thickness of 0.4 mm (0.015 in). The coatings produced are smoother and harder than coatings produced using Metco 45C-NS and Amdry X40. Amdry X40 can also be used as a complimentary super-alloy filler metal in brazing applications.

Packaging size

5 lb (approx. 2.2 kg)

Processing history

Gas atomized

Processing methods

Amdry X40: Atmospheric Plasma Spray, Laser Cladding, PTA, Brazing; Metco 45C-NS: Atmospheric Plasma Spray, Combustion Powder Thermospray; Metco 45VF-NS: Atmospheric Plasma Spray

Safety data sheet SDS No. 50-114

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.