Cobalt Braze Alloy Powder

Alternative and trade names
similar to MarM-509, Amdry MM509, Amdry MM509-C
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The Amdry™ MM509 series of alloy powders are spherical, inert gas atomized, cobalt-based powders.

Amdry MM509 and Amdry MM509-C are the chemically equivalent powdered form of superalloy MarM-509. These materials are used as superalloy matrix material when blended with boron-containing braze filler metals for activated diffusion brazing applications.

The Amdry™ MM509 series can also be used in thermal spray coating applications. Gas atomization ensures excellent chemical homogeneity and high purity for consistent processing results.

The materials Amdry MM509 and Amdry MM509-C of this product family differ primarily in their particle size distribution.

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

5 - 106 µm

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Amdry MM509: -45 +5µm, Amdry MM509-C: -106 +45µm

Chemical properties



0.55 - 0.65 %

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22.5 - 24.25 %

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9 - 11 %

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3 - 4 %

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0.15 - 0.3 %

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6.5 - 7.5 %

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0.3 - 0.6 %

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Technological properties

Application areas

Blend material for braze repairs, such as restoration of worn or damaged areas, crack repair or repair of surface defects. Joining of cobalt-based superalloy components for use in high temperature service conditions. Applications where excellent joint strength is required. Wide-gap braze applications by blending Amdry MM509 with Amdry MM509B-C or Amdry MM509B-F. Thermal spray coating for superalloy components. Used on aerospace and industrial gas turbine components.



Chemical composition

Co 24Cr 10Ni 7W 3.5Ta 0.6C



Handling recommendations

Store in the original, closed container in a dry location; Tumble contents prior to use to prevent segregation.



Order number

Amdry MM509: 1002099, Amdry MM509-C: 1059330

Packaging size

Amdry MM509: 5 lb (approx. 2.25 kg), Amdry MM509-C: 10 lb (approx. 4.5 kg)

Processing history

Gas atomized

Processing methods

Diffusion brazing

Safety data sheet SDS No. 50-1023