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

Alternative and trade names
MetcoAdd™ 75A, MetcoAdd™ 76A, MetcoAdd™ 78A
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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.

Related standards

Properties

General

Density ρ

4 g/cm³ at 20 °C

typical apparent density, min

Morphology

Spheroidal

Particle size D10 D10

12 μm

nominal values by laser diffraction; MetcoAdd 75A

Particle size D50 D50

25 μm

nominal values by laser diffraction; MetcoAdd 75A

Particle size D90 D90

43 μm

nominal values by laser diffraction; MetcoAdd 75A

Particle size range drange

10 - 45 µm

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

Thermal

Melting point Tm

1379 - 1419 °C

± 10 °C

Chemical properties

Element

Weight %

Comment

Co

-

balance

Cr

28 %

Mo

6 %

Other

1 %

max

C

0.2 %

max

Technological properties

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

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)

Safety data sheet

www.oerlikon.com/metco SDS No. 50-1881 / 50-1908

This material data has been provided by Oerlikon AM.

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.