AlSi7Mg Powder

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AlSi7Mg Powder

Product AlSi7Mg Powder
CAS No. N/A
Appearance Silver-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-7Si-0.3Mg
Density 2.65-2.68g/cm3
Molecular Weight N/A
Product Codes NCZ-DCY-195/25

AlSi7Mg Description:

AlSi7Mg 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

AlSi7Mg 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.

AlSi7Mg powder

AlSi7Mg powder is an aluminum alloy powder that primarily consists of aluminum (Al), silicon (Si), and magnesium (Mg). The “7” in its name signifies the percentage of silicon, while “Mg” represents the magnesium content. This powder exhibits excellent strength, low density, and impressive thermal properties, making it a preferred choice in multiple industries.

Overview of AlSi7Mg Powder

AlSi7Mg or A357 alloy is a versatile foundry alloy that possesses properties between pure aluminum and high-silicon hypereutectic alloys. The silicon additions improve castability and enhance mechanical properties while magnesium improves strength.

Key characteristics of AlSi7Mg powder include:

Good strength and hardness

Excellent fluidity and castability

Good machinability and polishability

High thermal conductivity

Good corrosion resistance

Low coefficient of thermal expansion

Available in range of particle sizes

AlSi7Mg powder is used for producing automotive components, hydraulic parts, and other precision castings needing balanced properties.

Chemical Composition of AlSi7Mg Powder

Element Weight %
Aluminum (Al) Balance
Silicon (Si) 6-8%
Magnesium (Mg) 0.4-0.8%
Iron (Fe) 0.15-0.5%
Manganese (Mn) 0.1% max
Copper (Cu) 0.1% max
Zinc (Zn) 0.1% max
Titanium (Ti) 0.25% max

Properties of AlSi7Mg Powder

Property Value
Density 2.68 g/cm3
Melting Point ~600°C
Thermal Conductivity 130-160 W/mK
Electrical Resistivity 3-5 μΩ.cm
Young’s Modulus 70-80 GPa
Poisson’s Ratio 0.33
Tensile Strength 250-300 MPa
Yield Strength 140-180 MPa
Elongation 4-8%
Hardness 80-100 Brinell

The silicon additions increase the strength while retaining good ductility and machinability. The alloy has excellent castability and thermal properties.

Production Method of AlSi7Mg Powder

Commercial production processes used for AlSi7Mg powder include:

Gas Atomization – Molten alloy stream broken into fine droplets by inert gas jets. Produces spherical powder.

Water Atomization – High pressure water jet impacts molten metal to yield fine powders. Cost effective but higher oxygen pickup.

Mechanical Alloying – Ball milling of aluminum and silicon powders followed by cold compaction and sintering.

Gas atomization provides the most control over powder characteristics like particle size distribution, morphology, and microstructure.

Applications of AlSi7Mg Powder

Metal Injection Molding – To manufacture small intricate parts with tight tolerances and good mechanical properties.

Additive Manufacturing – Used in binder jetting, laser melting and other AM processes to produce complex components.

Castings – Added to melts to improve fluidity. Used to manufacture automotive parts requiring durability.

Powder Metallurgy – Press and sinter process to create high performance parts.

Thermal Spraying – Deposited as protective coatings on metal surfaces to provide wear and corrosion resistance.

Welding Filler – For joining aluminum components while retaining weld strength.

Pyrotechnics – Added to pyrotechnic compositions as a fuel constituent.

Specifications of AlSi7Mg Powder

AlSi7Mg powder is available under different size ranges, grades and purity levels:

Particle Size: From 10 – 150 microns for AM, under 45 microns for MIM.

Morphology: Spherical, granular and irregular particle shapes. Smooth powder flows better.

Purity: From commercial to high purity (99.9%) grades.

Oxygen Content: Levels range from 400 – 1500 ppm for different production methods.

Flowability: Powder customized for excellent flow rates of 25 s/50 g or better.

Grades: Custom alloy chemistry and powder characteristics offered.

Handling and Storage of AlSi7Mg Powder

AlSi7Mg powder should be properly handled and stored to prevent:

Moisture contact leading to oxidation

Fire hazards from dust accumulation

Health hazards from inhaling fine powders

Safety practices recommended by supplier should be followed

Sealed containers under inert atmosphere along with proper grounding and PPE is recommended.

Testing and Characterization Methods

Key test methods for AlSi7Mg powder include:

Chemical analysis using OES or XRF for composition

Particle size distribution as per ASTM B822 standard

Morphology analysis through SEM

Flow rate measurement using Hall flowmeter

Density determination by helium pycnometry

Impurity levels tested by ICP-MS

Microstructure examined by XRD phase analysis

Thorough testing ensures powder quality for application requirements is met.

Comparison of AlSi7Mg and AlSi10Mg Powders

AlSi7Mg and AlSi10Mg are two aluminum alloy powders compared:

Parameter AlSi7Mg AlSi10Mg
Silicon content 6-8% 9-11%
Strength Lower Higher
Castability Comparable Comparable
Corrosion resistance Good Excellent
Cost Lower Higher
Applications Castings, MIM Aerospace, AM parts
Availability Readily available Moderate

AlSi10Mg offers higher strength but at increased cost. AlSi7Mg provides well-balanced properties at lower cost where high strength is not critical.

AlSi7Mg Powder FAQs

Q: How is AlSi7Mg powder produced?

A: AlSi7Mg powder is commercially produced using gas atomization, water atomization, or mechanical alloying followed by sintering. Gas atomization offers better control over particle characteristics.

Q: What are the main applications for AlSi7Mg powder?

A: The key applications for AlSi7Mg powder include metal injection molding, aluminum die casting, additive manufacturing, powder metallurgy, thermal spray coatings, and filler welding wire.

Q: What is the typical particle size used for AlSi7Mg powder in AM?

A: For most metal 3D printing processes like DMLS and binder jetting, the common particle size range for AlSi7Mg powder is 20-45 microns.

Q: Does AlSi7Mg powder require any special handling precautions?

A: Yes, it is recommended to handle aluminum powders under inert atmosphere using proper grounding, ventilation, and PPE to prevent fire and explosion hazards.

Q: Where can I buy AlSi7Mg powder suitable for making precision castings?

A: Leading powder suppliers Like Nanochemazone AlSi7Mg powder suitable for foundry applications like precision castings.

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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