CoCrMoW Powder

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CoCrMoW Powder

Product CoCrMoW Powder
CAS No. N/A
Appearance Gray Powder
Purity ≥99%,  ≥99.9%,  ≥95%(Other purities are also available)
APS 1-5 µM, 10-53 µM  (Can be customized),  Ask for other available size range.
Ingredient Co-Cr-Mo-W 
Density 8.3-9.2g/cm3
Molecular Weight N/A
Product Codes NCZ-DCY-213/25

CoCrMoW Description:

CoCrMoW Powder is one of the numerous advanced ceramic materials manufactured by Nanochemazone. Nanochemazone produces too many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia) and follows applicable ASTM testing standards. Typical and custom packaging is available. Additional technical, research and safety (MSDS) information are available. Please request a quote above for more information on lead time and pricing

CoCrMoW Powder Related Information :

Storage Conditions:

Airtight sealed, avoid light and keep dry at room temperature.

Please contact us for customization and price inquiry

Email: contact@nanochemazone.com

Note: We supply different size ranges of Nano and micron as per the client’s requirements and also accept customization in various parameters.

Overview of CoCrMoW Powder

CoCrMoW powder is a cobalt-chromium-molybdenum-tungsten alloy powder used primarily for manufacturing of orthopedic joint implants. The addition of tungsten further enhances the strength, wear resistance and hardness compared to CoCrMo alloys.

Key properties and advantages of CoCrMoW powder include:

CoCrMoW Powder Properties and Characteristics

Properties Details
Composition Co-Cr-Mo-W alloy
Density 9.2 g/cc
Particle shape Spherical
Size range 15-45 microns
Apparent density Up to 60% of true density
Flowability Good
Corrosion resistance Excellent due to Cr oxide layer
Biocompatibility High, suitable for implants
Wear resistance Extremely good from W and Cr
Strength Very high from solid solution strengthening

With its unique combination of biocompatibility, high hardness, strength and toughness, CoCrMoW enables manufacturing of high performance orthopedic implants using 3D printing or metal injection molding.

CoCrMoW Powder Composition

Element Weight %
Cobalt Balance
Chromium 26-30%
Molybdenum 5-7%
Tungsten 4-6%
Carbon < 0.35%
Manganese < 1%
Silicon < 1%
Iron < 1%
Nickel < 1%

Cobalt provides strength, biocompatibility, aids solid solution strengthening

Chromium for oxidation resistance and corrosion resistance

Molybdenum contributes to solid solution strengthening

Tungsten significantly improves wear resistance and hardness

Other elements present as impurities

CoCrMoW Powder Physical Properties

Properties Values
Density 9.2 g/cc
Melting point 1370-1430°C
Electrical resistivity 96 μΩ-cm
Thermal conductivity 16 W/mK
CTE 14.5 x 10^-6 K^-1
Curie temperature 1160°C

High density compared to CoCrMo and titanium alloys

Maintains strength and hardness at elevated temperatures

Relatively low thermal conductivity

Becomes paramagnetic above Curie temperature

CTE higher than competing alloys in implant applications

The properties allow use in load bearing orthopedic implants requiring high temperature strength, hardness and corrosion resistance.

CoCrMoW Powder Mechanical Properties

Properties Values
Hardness 43-52 HRC
Tensile strength 1310-1650 MPa
Yield strength 1035-1450 MPa
Elongation 8-15%
Modulus of elasticity 240-310 GPa
Compressive strength 1700-2100 MPa

Excellent combination of very high strength and hardness

Strength levels exceed requirements for load bearing implants

Reasonable ductility for a hard material

High modulus provides stiffness required for implants

High fatigue strength ensures durability

The mechanical properties make CoCrMoW powder highly suitable for manufacturing strong, wear resistant orthopedic implants using AM techniques.

CoCrMoW Powder Applications

Application Examples
Orthopedic implants Knee, hip, dental implants
Medical devices Surgical tools and instruments
Aerospace Aircraft engine components
Automotive Fuel injection parts, valves
Industrial Cutting tools, dies, molds

Some specific product uses of CoCrMoW alloy powder:

Articulating surfaces in joint replacement implants

Dental crowns, bridges and root caps

Maxillofacial implants, skull plates

Aircraft engine turbine blades and housings

Automotive engine valves and fuel injection nozzles

Cutting tools and industrial tooling

The combination of outstanding mechanical properties, corrosion resistance and biocompatibility provides maximum performance for these demanding applications.

CoCrMoW Powder Standards

Standard Description
ASTM F75 Standard for wrought CoCrMo alloy for surgical implants
ASTM F1537 Wrought CoCrMoNi alloy for dental applications
ASTM F3001 Specification for additive manufacturing of medical implants using powder bed fusion
ISO 5832-4 Wrought CoCrMoNi alloy for surgical implants

These standards specify:

Limits on composition, impurities

Minimum mechanical property requirements

Production method – inert gas atomization

Acceptable particle size distribution

Testing protocols for quality assurance

Powder characterization requirements

Compliance with standards ensures suitability for critical orthopedic implant applications.

CoCrMoW Powder Particle Size Distribution

Particle size Characteristics
15-25 microns Used in laser powder bed fusion (LPBF)
25-45 microns Used in binder jetting and DMLS
10-45 microns Used in metal injection molding

Finer powder provides higher resolution and surface finish for AM

Coarser powder has better flowability for powder processing

Balanced size distribution optimized for each production method

Tight control over particle size distribution is maintained

Controlling particle size and morphology allows high packing density and optimized sintering.

CoCrMoW Powder Apparent Density

Apparent density Characteristics
Up to 60% of true density For spherical powder morphology
4.5-5.5 g/cc range Due to voids between particles

Higher apparent density improves powder flow and compressibility

Spherical powder shape allows greater packing density

Values up to 65% are possible with optimized powder

Higher apparent density results in better manufacturing productivity and part quality.

CoCrMoW Powder Production

Method Details
Gas atomization High pressure inert gas breaks up molten alloy stream into fine droplets
Vacuum induction melting High purity starting materials melted under vacuum
Multiple remelting Improves chemical homogeneity
Sieving Classifies powder into different particle size fractions
Blending Powder fractions blended to customize particle distribution

Gas atomization produces fine spherical powder morphology

Vacuum melting minimizes impurities like oxygen and nitrogen

Multiple remelting improves uniformity of composition

Post-processing allows precise control of particle size distribution

CoCrMoW Powder Handling and Safety

Recommendation Reason
Avoid inhalation To prevent lung tissue damage from fine particles
Use protective mask and gloves Prevent accidental ingestion through nose/mouth
Handle in well ventilated areas Reduce airborne particle circulation
Use appropriate protective clothing Minimize skin contact
Ensure no ignition sources nearby Powder can combust in oxygen atmosphere
Follow anti-static protocols Prevent fire due to static discharge while handling
Use non-sparking tools Avoid possibility of ignition
Store in sealed containers in cool, dry area Prevent contamination and oxidation

Although CoCrMoW powder is relatively inert, recommended precautions should be taken for safe handling and processing.

CoCrMoW Powder Testing

Test Details
Chemical analysis ICP spectroscopy used to verify composition
Particle size analysis Determines particle size distribution
Apparent density Measured using Hall flowmeter as per ASTM B212
Powder morphology Imaging analysis via SEM to check particle shape
Flow rate testing Determines flowability through a standardized funnel
Tap density testing Density measured after mechanically tapping powder sample

Rigorous testing ensures compliance with specifications like ASTM F75 and consistent powder suitable for orthopedic implant manufacturing.

CoCrMoW Powder Storage and Handling

Factor Effect
Air, oxygen Risk of oxidation at high temperatures
Moisture Low corrosion rate at room temperature
Organic solvents Can absorb solvents and stain powder
Acids, alkalis Resistant to mild acids and bases
Elevated temperatures Increased reactivity and oxidation in air
Contamination Can affect flowability, sintering ability

Recommendations:

Store sealed in inert gas purged containers

Maintain below 30°C temperature

Avoid contact with oxidizing acids and chlorinated solvents

Open containers only in controlled environments

With proper precautions, CoCrMoW powder exhibits excellent stability during handling and storage.

Comparison With CoCrMo Powder

CoCrMoW vs CoCrMo Powder

Parameter CoCrMoW CoCrMo
Density 9.2 g/cc 8.3 g/cc
Hardness 43-52 HRC 35-45 HRC
Tensile strength 1310-1650 MPa 1170-1510 MPa
Wear resistance Excellent Very good
Corrosion resistance Excellent Excellent
Biocompatibility High High
Cost High Moderate
Uses Orthopedic implants, aerospace Orthopedic implants, dental

CoCrMoW has significantly higher strength and hardness

CoCrMoW provides better wear resistance

Both offer excellent corrosion resistance and biocompatibility

CoCrMoW is more expensive due to W addition

CoCrMoW preferred for knee, hip implants; CoCrMo for dentistry

The tungsten addition gives CoCrMoW superior mechanical properties than conventional CoCrMo alloys.

CoCrMoW Powder Pros and Cons

Advantages of CoCrMoW Powder:

Excellent strength, hardness and wear resistance

High biocompatibility and corrosion resistance

Good high temperature properties

Can be processed via AM or MIM techniques

Suitable for load-bearing orthopedic implant applications

Provides attractive aesthetic appearance

Limitations of CoCrMoW Powder:

More expensive than CoCrMo and stainless steel powders

Lower ductility and fracture toughness

Requires protective atmosphere during processing

Difficult to machine final components

Limited joinability and weldability

Release of Co ions raises health concerns

CoCrMoW Powder FAQs

Q: What are the main applications of CoCrMoW powder?

A: The primary applications are knee and hip joint replacement implants, dental restorations like crowns and bridges, maxillofacial implants, and aerospace components like turbine blades.

Q: How does tungsten addition improve the properties of CoCrMo alloy?

A: Tungsten significantly increases strength, hardness and wear resistance through solid solution strengthening and formation of stiff carbides. This results in excellent performance for load bearing implants.

Q: What precautions are needed when handling CoCrMoW powder?

A: Recommended precautions include using protective mask, gloves, clothing, handling in ventilated areas, avoiding ignition sources, controlling static discharge, using non-sparking tools, and storing sealed containers in a cool, dry place.

Q: What are the key differences between CoCrMoW grades for medical and industrial uses?

A: Medical grades have higher purity, lower impurities, controlled particle size distribution, undergo more rigorous testing, and are produced under stringent quality control to meet standards for biomedical implants.

Description

Description
Note: For pricing & ordering information, please get in touch with us at sales@nanochemazone.com
Please contact us for quotes on Larger Quantities and customization. E-mail: contact@nanochemazone.com

Customization:
If you are planning to order large quantities for your industrial and academic needs, please note that customization of parameters (such as size, length, purity, functionalities, etc.) is available upon request.

NOTE:
Images, pictures, colors, particle sizes, purity, packing, descriptions, and specifications for the real and actual goods may differ. These are only used on the website for the purposes of reference, advertising, and portrayal. Please contact us via email at sales@nanochemazone.com or by phone at (+1 780 612 4177) if you have any questions.

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