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Cobalt Chrome Molybdenum Alloys for Laser Powder Bed Fusion (PBF-LB)

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Description

Designed for Processing in Laser Powder Bed Fusion (PBF-LB) Systems 


MetcoAdd™ 75A, 76A and 78A are cobalt-chromium-molybdenum based powders similar to ASTM F75, ISO 5832-4 and UNS R31538. 


Room temperature static properties of PBF-LB processed and heat treated material coupons have been shown to be comparable to those of ASTM F75. 


For reference purposes Oerlikon has processed MetcoAdd 76A using fixed parameters and 40 μm layer thickness to provide data below. Additional testing has been performed by an extensive network of consortia and customer partners on a broader range of machine types. Properties may be optimized based on application specific requirements.

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

Properties

General

PropertyTemperatureValueComment

Bulk density

23.0 °C

4 g/cm³

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typical apparent density, min

Particle size D10

12 μm

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nominal values by laser diffraction; MetcoAdd 75A

Particle size D50

25 μm

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nominal values by laser diffraction; MetcoAdd 75A

Particle size D90

43 μm

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nominal values by laser diffraction; MetcoAdd 75A

Particle size range

10 - 45 µm

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ASTM C 1070 (Microtrac); MetcoAdd 75A: -45 +10µm; MetcoAdd 76A: -45 +15µm; MetcoAdd 78A: -45 +15µm

Thermal

PropertyValueComment

Melting point

1378 - 1419 °C

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± 10 °C

Technological properties

Property
Application areas

Aerospace: Engine components; Power Generation: Gas turbine; Medical and Dental: Implants; Industrial: Various

Availability

75A: stock, 76A: special order, 78A: stock

Chemical composition

CoCrMoC

Distribution

Global

Handling recommendations

Blend contents prior to use to prevent segregation; Keep in the original container, or an approved alternative, tightly closed when not in use; Powder from previously opened containers should be stored in a humidity-controlled environment

Morphology

Spheroidal

Order number

75A: 1089475, 76A: 1098044, 78A: 1092445

Packaging size

75A: 4.5kg / 10 lb approx., 76A: 2.255 kg / 5 lb approx., 8A: 4.5 kg / 10 lb approx.

Processing history

Gas atomized (Nitrogen)

Processing methods

Laser Powder Bed Fusion (PBF-LB)