Pure Aluminum Powder

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Pure Aluminum Powder

Product Pure Aluminum Powder
CAS No. 7429-90-5
Appearance Slivery 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 Al
Density 2.7g/cm3
Molecular Weight 26.98g/mol
Product Codes NCZ-DCY-249/25

Pure Aluminum Description:

Pure Aluminum 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

Pure Aluminum 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.

Pure aluminum powder

Pure aluminum powder contains 99% or higher aluminum content. It provides low density combined with good ductility, conductivity, and corrosion resistance.

Overview of Pure Aluminum Powder

Pure aluminum powder contains 99% or higher aluminum content. It provides low density combined with good ductility, conductivity, and corrosion resistance.

Key properties and advantages of pure aluminum powder include:

Pure Aluminum Powder Properties and Characteristics

Properties Details
Composition 99% or higher Al content
Density 2.7 g/cc
Particle shape Spherical, irregular
Size range 1-150 microns
Apparent density Up to 50% of true density
Conductivity Excellent electrical and thermal conductivity
Corrosion resistance Good due to protective oxide layer

Pure aluminum powder is suitable for applications like thermite welding, diamond tools, conductive coatings, pyrotechnics, and metal injection molding.

Pure Aluminum Powder Composition

Element Weight %
Aluminum (Al) 99% min
Silicon (Si) 0.5% max
Iron (Fe) 0.5% max
Copper (Cu) 0.05% max
Manganese (Mn) 0.05% max
Magnesium (Mg) 0.05% max
Other impurities 0.05% max

Aluminum provides low density, ductility and conductivity

Impurity levels of other elements are carefully controlled

High aluminum purity provides optimal electrical and thermal conductivity

Pure Aluminum Powder Physical Properties

Property Values
Density 2.7 g/cc
Melting point 660°C
Thermal conductivity 237 W/mK
Electrical resistivity 2.65 μΩ-cm
CTE 23.1 x 10^-6 /K
Reflectivity 87% at 400 nm wavelength

Very low density compared to most metals

High reflectivity and thermal conductivity

Low electrical resistivity provides high conductivity

Relatively high CTE necessitates design considerations

Maintains strength up to moderately high temperatures

The properties make pure aluminum suitable for lightweight applications needing electrical/thermal conductivity.

Pure Aluminum Powder Mechanical Properties

Property Values
Tensile strength 90-100 MPa
Yield strength 35-45 MPa
Elongation 35-40%
Hardness 25-35 HB
Fatigue strength 50-90 MPa
Shear strength 60-65 MPa

Relatively low tensile and yield strength

Very high elongation provides excellent ductility

Low hardness compared to most metals

High fatigue strength suited for cyclic loading

Properties can be enhanced through alloying additions

The properties make pure aluminum suitable for soft, ductile applications requiring conductivity and formability.

Pure Aluminum Powder Applications

Typical applications of pure aluminum powder include:

Pure Aluminum Powder Applications

Industry Uses
Thermite welding Rail welding, metal joining
Additive manufacturing Low strength components
Explosives and pyrotechnics Thermite compositions
Powder coatings Conductive and resistant coatings
Diamond tools Metal matrix with diamond particles
Fireworks Fuel and pyrotechnic compositions

Some specific product uses:

Thermite mixtures for in-situ metal joining and welding

Low melting point casting alloys

Electrically conductive coatings and RF shielding

Aluminum-diamond tools for stone cutting

Flash powder and pyrotechnic compositions

Metal injection molding of non-structural parts

The ductility, conductivity and reactivity make pure aluminum suitable for these niche applications.

Pure Aluminum Powder Specifications

Standard Description
ASTM B787 Standard for pure aluminum powders
ASTM B859 Specs for aluminum and aluminum alloy powders
DIN 1718-1 Designation system for aluminum and aluminum alloys
GJB320B Chinese military standard for aluminum and aluminum alloy powders

These define:

Minimum 99% aluminum content

Limits on impurities like Fe, Si

Powder characteristics like apparent density and particle size distribution

Approved production methods like atomization

Sampling and testing protocols

Meeting the standards ensures suitability for applications needing high purity aluminum powder.

Pure Aluminum Powder Particle Size Distribution

Size Characteristics
1-10 microns Ultrafine grade used in printing pastes
10-45 microns Fine grade suitable for coatings, pressing
45-150 microns Coarse grade offers better flowability

Finer sizes provide a smooth finish and high reactivity

Coarser powder has improved flow for automated processing

Both spherical and irregular particle shapes are available

Size distribution depends on targeted use

Controlling particle size distribution optimizes processing behavior, density, reactivity, and finish.

Pure Aluminum Powder Apparent Density

Apparent Density Details
Up to 50% of true density For irregular morphology powder
1.3-1.7 g/cc Higher for spherical powder

Spherical powder shape provides higher apparent density

Irregular particles have lower density around 30-40%

Higher density improves powder flow and compactibility

Values up to 60% are possible with optimized spherical powder

Higher apparent density leads to better manufacturing productivity and part quality.

Pure Aluminum Powder Production

Method Details
Atomization Molten aluminum stream broken into fine droplets that solidify into powder
Ball milling Mechanical milling classifies coarse powder into fine powder
Annealing Removes internal stresses and improves powder compressibility
Sieving Classifies powder into different size fractions

Atomization allows large volume production with controlled particle sizes

Milling provides lower cost size reduction of coarse powder

Annealing and sieving provide customized powder sizes and shapes

Combination of methods produces high purity aluminum powder with application-specific characteristics.

Pure Aluminum Powder Handling and Storage

Recommendation Reason
Use proper ventilation Avoid concentrated dust environment
Employ grounding systems Prevent static discharge during handling
Limit moisture exposure Prevents oxidation of particles
Follow safe protocols Reduce health and fire hazards
Avoid ignition sources Flammable powder risk
Use non-sparking tools Prevent possibility of ignition

Storage Recommendations

Store in dry, inert sealed containers

Maintain storage temperatures below 27°C

Limit exposure to oxidizers like nitric acid

Proper precautions during handling and storage help preserve purity and prevent oxidation or ignition risks.

Pure Aluminum Powder Inspection and Testing

Test Details
Chemical analysis XRF or ICP testing verifies composition
Particle size distribution Laser diffraction analysis
Apparent density Hall flowmeter test per ASTM B212 standard
Powder morphology SEM imaging of particle shape
Flow rate analysis Gravity flow rate through specified funnel
Moisture measurement Loss on drying test

Testing ensures the powder meets the required purity levels, particle characteristics, density specifications, morphology and flowability per applicable standards.

Pure Aluminum Powder Pros and Cons

Advantages of Pure Aluminum Powder

Low density provides lightweight properties

Excellent electrical and thermal conductivity

Good corrosion resistance

High ductility and excellent formability

Recyclable and environmentally friendly

Cost-effective compared to other conductive powders

Limitations of Pure Aluminum Powder

Low strength limits load bearing structural applications

Moderate high temperature mechanical strength

Requires protective coatings in corrosive environments

Sensitive to contamination from moisture and other powders

Pyrophoric nature requires careful handling

Gradually oxidizes over time if uncoated

Comparison With Al-Mg Alloy Powder

Pure Al vs Al-Mg Alloy Powder

Parameter Pure Al Al-Mg
Density 2.7 g/cc 2.7 g/cc
Strength 90-100 MPa 150-220 MPa
Conductivity Excellent Good
Corrosion resistance Good Excellent
Cost Low High
Uses Thermite welding, pyrotechnics Structural components

Pure Al offers better conductivity and lower cost

Al-Mg alloy provides higher strength

Pure Al suited for electrical applications and pyrotechnics

Al-Mg preferred for structural lightweight components

Pure Aluminum Powder FAQs

Q: What are the main applications of pure aluminum powder?

A: Main applications include thermite welding, conductive coatings, pyrotechnic compositions, diamond tools, metal injection molding of non-structural parts, and low-melting casting alloys.

Q: What precautions should be taken when working with pure aluminum powder?

A: Recommended precautions include proper ventilation, avoiding ignition sources, explosion-proof equipment, grounding systems, non-sparking tools, protective gear, safe protocols, and inert storage sealed away from contaminants.

Q: How does pure aluminum powder differ from aluminum alloy powders?

A: Pure aluminum has 99% or higher Al content while alloy powders contain other elements like magnesium, silicon, zinc. Pure Al offers high conductivity but lower strength than alloys.

Q: What affects the properties of pure aluminum powder components?

A: Key factors are apparent density, particle size distribution, compaction pressure, sintering parameters, impurities, and final part porosity.

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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