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Aluminum Oxide

    • Product Name Aluminum Oxide
    • Alias alumina
    • Einecs 215-691-6
    • Mininmum Order 1 g
    • Factory Site Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing
    • Price Inquiry admin@sinochem-nanjing.com
    • Manufacturer Sinochem Nanjing Corporation
    • CONTACT NOW
    Specifications

    HS Code

    693499

    Chemical Formula Al2O3
    Molar Mass 101.96 g/mol
    Appearance white solid
    Melting Point 2072 °C
    Boiling Point 2977 °C
    Density 3.95 g/cm³
    Solubility In Water insoluble
    Hardness Mohs 9
    Refractive Index 1.76–1.77
    Thermal Conductivity 30 W/m·K

    As an accredited Aluminum Oxide factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing A sturdy white plastic jar labeled "Aluminum Oxide, 500g," featuring hazard symbols, lot number, and tamper-evident sealed cap.
    Shipping Aluminum oxide is generally shipped in solid form, such as powder or granules, in sealed, moisture-proof bags or drums to prevent contamination. It is non-hazardous and stable under normal conditions. Ensure containers are clearly labeled and stored in a dry, well-ventilated area away from incompatible substances. Handle with standard precautions.
    Storage Aluminum oxide should be stored in a tightly sealed container in a cool, dry, and well-ventilated area. Keep it away from moisture, acids, and incompatible substances. Ensure the storage area is free from sources of ignition and avoid generating dust. Proper labeling and secondary containment are recommended to prevent contamination and ensure safe handling.
    Application of Aluminum Oxide

    Purity 99.99%: Aluminum Oxide with 99.99% purity is used in semiconductor wafer fabrication, where superior electrical insulation and defect minimization are achieved.

    Particle Size 50 nm: Aluminum Oxide with 50 nm particle size is used in advanced polishing slurries, where ultra-smooth surface finishes on optical components are produced.

    Melting Point 2050°C: Aluminum Oxide with a melting point of 2050°C is used in ceramic crucible manufacturing, where high thermal resistance and structural stability are required.

    Surface Area 200 m²/g: Aluminum Oxide with 200 m²/g surface area is used in catalyst support for petrochemical processes, where increased reaction rates result from high dispersion.

    Phase Alpha: Aluminum Oxide in the alpha phase is used in wear-resistant coatings for machine parts, where enhanced hardness and abrasion resistance are obtained.

    Thermal Conductivity 30 W/m·K: Aluminum Oxide with thermal conductivity of 30 W/m·K is used in electronic substrates, where efficient heat dissipation improves device reliability.

    Bulk Density 3.8 g/cm³: Aluminum Oxide with a bulk density of 3.8 g/cm³ is used in sandblasting media, where consistent particle flow and uniform surface treatment are maintained.

    Dielectric Strength 13 kV/mm: Aluminum Oxide with dielectric strength of 13 kV/mm is used in high-voltage insulators, where electrical breakdown prevention is critical.

    Purity 96%: Aluminum Oxide with 96% purity is used in spark plug manufacturing, where reliable electrical insulation and mechanical durability are ensured.

    Micronized Grade: Aluminum Oxide of micronized grade is used in dental polishing powders, where fine abrasive action provides effective plaque removal without surface damage.

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    Competitive Aluminum Oxide prices that fit your budget—flexible terms and customized quotes for every order.

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    Certification & Compliance
    More Introduction

    Aluminum Oxide: An Essential Industrial Material

    Aluminum oxide has long earned its place as a backbone material in countless industries. Growing up around a family-run machine shop, I remember my uncles treating every new batch of aluminum oxide as a trusted companion rather than just another powder. For them, a reliable abrasive meant not just smoother parts, but fewer costly mistakes. Our aluminum oxide, model AO-120F, is engineered as a fine, high-purity crystalline powder with tight grain control and minimal impurities—those are the things that made precision possible on the shop floor.

    Physical Qualities that Shape Performance

    Aluminum oxide always stands out in the world of abrasives and ceramics because of its unique combination of hardness and stability. Its Mohs hardness hovers right behind diamond, so it tackles grinding tasks with ease, scraping through tough metal burrs and polishing surfaces in a way that silicon carbide or emery just can’t quite match. Granule size makes a difference; AO-120F offers a median size around 110 microns, reliable enough for detailed glass etching yet aggressive on metal. When it comes to purity, at over 99.5% pure, this powder resists contamination that can compromise finished workpieces or delicate electronic assemblies. Nobody wants the headache of explaining a failed batch of spark plugs or a scratched camera lens to a customer—the material you pick makes a difference you feel every day.

    Practical Uses Across Manufacturing

    You notice the utility of aluminum oxide in three big areas: abrasive blasting, polishing, and electronics. In abrasive blasting, grain shape influences how smoothly a nozzle can cut rust free from machinery or clean up aviation gear. Rounded grains tend to roll over tough material, while blockier shapes carve more thoroughly, helping shops select the right grit for each job. Our AO-120F balances toughness with harmlessness—it won’t leach harmful chemicals or dusts during use, an assurance for both worker safety and end-product reliability.

    Polishing demands consistency and strength. Jewelry makers, dental labs, and optical lens producers depend on the fact that this model doesn’t break down into unpredictable fragments. So if you’re running a batch of sapphire wafers or prepping dental crowns, this powder won’t cause surface micro-cracking or debris build-up. Many cheaper abrasive powders fall short here, creating costs and delays that are easy to underestimate until the flaws show up in the finished parts.

    Electronics manufacturing, especially in the world of semiconductors and thin-film applications, calls for a near-total absence of sodium and iron in the raw powder. AO-120F, refined using advanced calcination and sieving steps, brings those contaminants down to a few parts per million. Soldering circuit boards or fabricating chip surfaces with high-purity aluminum oxide lets manufacturers minimize rejects, support electrical reliability, and fight against product returns and warranty claims.

    How Aluminum Oxide Measures Up Against Alternatives

    Choosing between aluminum oxide, silicon carbide, and diamond abrasives isn’t just a matter of cost or tradition. Silicon carbide, for instance, often outpaces aluminum oxide in aggressive cutting jobs, but it leaves a rougher finish and loses its sharpness faster. Diamond abrasives operate at the high end of both hardness and price, making them a staple for high-tech and experimental labs but out of reach for everyday industrial work.

    For me, aluminum oxide’s edge comes from its middle-ground strength. It’s tough enough to grind hardened steel, yet forgiving enough to avoid warping substrates in delicate electronics or glassware. Safety rules favor it, because its dust doesn’t carry the same health risks as free silica—a concern that keeps many old-timers wary of other abrasives. On the floor, workers handle bags of AO-120F with confidence, knowing they won’t need to overhaul safety protocols or worry about long-term silicosis risk for the team.

    The Environmental Angle

    Aluminum oxide’s chemical stability allows manufacturers to clean and recycle abrasive media many times. In the 1980s, our shop would use crushed glass for sandblasting, but the waste piled up, and there was no easy path to reuse it. AO-120F, by contrast, runs smoother through recycling systems and picks up far less metallic contamination. This saves not only on raw powder billings but reduces landfill and toxic runoff. Used abrasive can serve another life in filler applications for construction or road building, reducing resource drain and landfill load—an option missing for less stable media.

    Challenges from Changing Technology

    Modern automated blasting and finishing systems push the limits of what any abrasive powder can do. Precision controls dial in pressure and timing down to the millisecond, but that means every grain has to deliver the same hardness, shape, and purity from start to finish. A single outlier batch can clog machines, reduce productivity, or break costly ceramic or electronics parts. AO-120F addresses those issues through its advanced quality protocol, using laser diffraction analysis and inductively coupled plasma tests to screen every lot.

    Old ways of “eyeballing” the grit size or relying on supplier guarantees don’t cut it anymore. Floor managers want documented test results showing particle size distribution, with charts and lab reports attached. AO-120F comes with transparent lab reports, helping shops build trust with their customers and meet international compliance rules—something that never even came up 40 years ago. The stakes now involve not just local safety but entire supply chains, stretching from Asia to Europe.

    Worker Experience and Safety

    I once watched a colleague develop a mild respiratory irritation from high-fines abrasive dust. No one paid much attention until lost work hours and doctor bills stacked up. With AO-120F’s tight process control and minimal dust generation, our plant saw a marked drop in complaints. Shops running continuous blasting lines routinely install downdraft tables and HEPA filters—nobody wants unseen dust polluting the air or getting tracked outside. This powder supports those safety targets, with granules large and dense enough to minimize airborne dispersion, while OSHA and NIOSH guidelines remain comfortably met.

    Integrating Aluminum Oxide in Digital Manufacturing

    As additive manufacturing and 3D printing gain steam, material demands keep evolving. Some powder-bed 3D printers for ceramics and metal composites now rely on consistent alumina feedstock, adjusting sintering times and temperatures for the unique melting point and grain size of AO-120F. Getting this step right means fewer print failures and smoother finishes. I’ve seen operations where inconsistent grain wreaked havoc on heated builds, fusing layers poorly or triggering cracks. AO-120F’s repeatable range gives production teams tighter control, especially on high-value batches where every print counts. This is not some distant R&D goal; it’s part of the way forward for shops serious about scaling digital workflows.

    Cost Considerations and Longevity

    Price factors into almost every purchasing decision. Some buyers cut corners chasing bargain abrasives, but the hidden costs of rework, labor, and rejected parts quickly close the gap. AO-120F, with its steady shape and minimal friability, stands up to repeated cycles without turning into unusable sludge. This feature alone has kept our annual abrasive budget predictable and avoided mid-project shutdowns over worn-out media—a risk most teams can’t afford.

    Equal importance sits in equipment wear. Some hard, angular powders carve away at nozzles, valves, and screens so quickly you pay double in maintenance. The blend and processing method for AO-120F delivers a powder that cuts but doesn’t chew up the gear—another way it saves money beyond the shipping invoice. Many shops fail to consider these secondary savings, but they make all the difference across years of hard use and lean budgets.

    Customization and Collaboration

    Our shop used to sink hours into dialing in ideal grit sizes for a stubborn batch of steel plates. Modern suppliers like those behind AO-120F offer technical consultation as part of the deal, working alongside buyers to lock in the right size, purity, and performance blend. This shift toward partnership over bulk selling—one I’ve personally benefited from—means better product outcomes and more predictable lead times.

    Some industries, like aerospace or energy, demand even stricter specifications, looking for exact flow rates and thermal properties. AO-120F tackles these needs with kilo-lab sampling, detailed certification, and hands-on support from experienced application engineers. Such efforts have helped reduce project overruns and scrap, saving not only budgets but reputations—a reality check for anyone facing strict contract penalties or regulatory audits. This is material support that can’t be matched with a generic online purchase.

    Comparing Regional Supply Chains

    Since supply chain disruptions hit in recent years, many buyers look for regional sourcing of abrasives. AO-120F’s stable availability through both domestic and Asian producers avoids the price swings and customs headaches tied to niche imports. In my own experience, a reliable pipeline translates to shorter lead times, steadier inventory, and less downtime blaming some far-off freight snag. Local supply supports accountability, too; it’s easier to audit production and enforce environmental or labor standards across a shorter chain than manage risks sprawling across borders.

    Lifespan and Maintenance

    Over time, every abrasive medium breaks down, but not all powders wear the same. AO-120F holds its edge over dozens of cycles, shedding less fines and producing fewer “spent media” heaps in shop corners. Cleaning and recycling get simpler thanks to predictable breakdown profiles, with less need for filtering or chemical washing to reclaim usable material. This is a boon in both high-throughput shops and clean-room environments, ensuring that every pound purchased delivers full value before moving on to secondary uses. I think most toolroom supervisors would agree—the less spent abrasive you send to waste, the more your bottom line benefits.

    Global Market Trends

    Rapid industrial growth in emerging markets has driven up aluminum oxide demand, but global producers keep expanding technical capacity rather than cutting corners on quality. AO-120F’s consistent reputation draws international buyers, who keep watch for cost overruns on substandard powder. It’s a real-world lesson in balancing raw material sourcing with the need for longevity, safety, and predictable results. As regulatory expectations tighten worldwide—from REACH in Europe to USA’s TSCA reforms—buyers no longer gamble with just any anonymous or uncertified product. AO-120F’s record of compliance and technical transparency wins contracts time and again for high-spec work, from infrastructure to electronics OEMs.

    Future Directions: Toward Sustainability and Efficiency

    As manufacturing shifts towards greener processes, expectations rise for every supply partner. AO-120F producers have responded with energy-efficient calcination and closed-loop water systems, cutting emissions and supporting “zero landfill” goals at major plants. In the lab, engineers push for even lower impurity levels and better recyclability, setting new standards for what buyers can expect from standard grades. My conversations with procurement managers point to a sharp uptick in demand for cradle-to-grave product documentation and audit-ready sourcing. Aluminum oxide supply never stands still; its evolution mirrors the pace of change in global manufacturing.

    Final Thoughts: Putting the Material to Work

    Every shop, lab, or factory faces the same crossroads sooner or later—pick the latest, shiniest new material, or lean on proven value. For many in the field, AO-120F aluminum oxide offers that rare blend of old-school reliability and modern process control. No product does it all, but this powder keeps earning its keep, batch after batch, from basic machinery finishing up to the most demanding microelectronics. Staying informed, adapting to changes in use cases, and building real partnerships with technical suppliers delivers returns far beyond pound-for-pound pricing. Aluminum oxide—refined, tested, and tailored to modern needs—remains a cornerstone in the toolkit of anyone serious about industrial quality and consistency.