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METCO ^® 15E

Metco 15E is a self-fluxing, nickel-chromium hardfacing alloy powder. It produces coatings harder than those produced by any other Metco self-fluxing alloy, except those which contain tungsten carbide. In addition, the coatings are very dense and corrosion resistant. They resist wear by abrasive grains, hard surfaces, particle erosion and cavitation, in both low and high temperatures.

Metco 15E is recommended for the most severe service requirements when used on base materials with a fairly high coefficient of thermal expansion (8 - 9 x 10-6/º F).

Metco 15E meets, and exceeds, AMS Specification 4775A. Metco controls the chemical limits and particle sizes more tightly than the AMS specification requires. It also meets the requirements of MILR-17131A and API Standard 610.

As a self-fluxing alloy, Metco 15E is one of a group of Metco powders which were designed to be "fused" or re-melted in a normal atmosphere after being sprayed. They then coalesce into a dense, essentially pore-free coating.

Typical Composition:

• Chromium 17.0%
• Iron 4.0%
• Silicon 4.0%
• Boron 3.5%
• Carbon 1.0%
• Nickel Balance

Coating Properties

• Texture, as-fused: Smooth
• Porosity: Essentially non-porous
• Bonding: Metallurgical Excellent
• Wetting: Good
• Macrohardness: Rc62 Rc50-55

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