Local Service, Global Capabilities.
Local Service, Global Capabilities.
ISO CERTIFIED QUALITY
Aodson specializes in high-performance precision casting services, committed to delivering tailor-made solutions that meet the most stringent engineering requirements.
Our comprehensive capabilities span investment casting (silica sol process), vacuum casting, and die casting. This versatility allows us to expertly handle a vast spectrum of materials, from premium stainless steel and carbon steel to lightweight aluminum and high-performance specialized alloys (such as Duplex 2205 and 310S).
Leveraging our advanced technical expertise, we excel in manufacturing complex geometries and intricate thin-walled structures without compromising material integrity or durability. Whether it's rapid prototyping or full-scale industrial production, Aodson ensures cost-effectiveness, accelerated turnarounds, and uncompromising quality control to deliver components that perform in the most demanding environments.
Beyond our core casting expertise, Aodson offers world-class CNC machining services to provide fully finished, ready-to-use components. We specialize in transforming complex concepts into high-precision parts using advanced 3, 4, and 5-axis machining centers.
Whether working with stainless steel alloys, titanium, or specialized polymers, we ensure every component upholds the highest standards of structural integrity and dimensional precision.
Our team doesn't just machine parts; we optimize solutions. By focusing on strict quality assurance and accelerated lead times, Aodson serves as a strategic partner in your supply chain, delivering precision-engineered parts with maximum cost-efficiency.
At Aodson, quality is the cornerstone of our operation. We uphold a culture of precision and accuracy at every stage of the manufacturing process, ensuring that every component aligns with the world's most rigorous industrial standards.
Equipped with high-end metrology tools—including CMM (Coordinate Measuring Machines), micrometers, digital calipers, and XRF material analyzers—we provide absolute transparency and confidence in your product's integrity. Our seasoned quality control team executes stringent on-site inspections across pre-production, in-process, and final delivery phases, focusing on aesthetic finish, functional performance, and your exact technical specifications.
To ensure full traceability, we provide comprehensive documentation, including First Article Inspection (FAI) reports, RoHS compliance certification, and material performance assessments. With over 20 years of manufacturing expertise and multiple ISO certifications, Aodson guarantees consistent, high-performance quality that drives your success.
When a metal part becomes difficult to make, the manufacturing decision usually narrows to two strong options: investment casting and CNC machining. Both can produce reliable, high-performance components. Both are used for stainless steel, carbon steel, alloy steel, aluminum, brass, and specialty alloys. And both can support demanding applications in pumps, valves, marine hardware, construction hardware, machinery, and custom industrial assemblies.The better choice depends less on which process is “more advanced” and more on the shape of the part, annual quantity, tolerance requirements, surface finish, material, and how much post-processing the design can tolerate.This guide compares investment casting vs CNC machining from a practical engineering and sourcing point of view, especially for complex metal parts where cost, repeatability, and design freedom all matter. What Is Investment Casting? Investment casting, also called lost wax casting, is a precision casting process used to produce metal parts with complex geometry. A wax pattern is made, assembled into a tree, coated with ceramic shell, melted out, and then filled with molten metal. After solidification, the ceramic shell is removed and the castings are cut, cleaned, heat treated, machined where needed, and inspected.The biggest strength of investment casting is shape freedom. It can create internal contours, curved surfaces, ribs, bosses, thin walls, and blended transitions that would be expensive or impossible to machine from solid bar stock. For complex parts, it often produces a near-net-shape blank, leaving only critical surfaces for secondary CNC machining. What Is CNC Machining? CNC machining removes material from a solid block, bar, forging, casting, or extrusion using computer-controlled cutting tools. Common CNC processes include milling, turning, drilling, tapping, grinding, and multi-axis machining.The biggest strength of CNC machining is dimensional control. It is excellent for tight tolerances, flatness, concentricity, threads, precision holes, sealing surfaces, and parts that need clean, repeatable edges….
A practical guide to Zamak 5 zinc alloy, including composition, die casting benefits, common uses, design notes, and material selection tips.
Density is one of the quiet variables that shapes every stainless steel project. It turns a drawing into a shipping weight, a casting model into a material quotation, and a tank wall into a lifting requirement. Yet using one generic value for every stainless steel grade can create avoidable errors, especially when quantities are large or weight is commercially important. This guide provides a practical stainless steel density chart, explains why grades differ, and shows how engineers and purchasers can use density correctly for sheet, machined parts and investment cast components. Comparing stainless steel mass starts with defined geometry, a known grade and an appropriate density value. What Is the Density of Stainless Steel? Most stainless steels have a density between approximately 7.7 and 8.0 g/cm³, or 7,700 to 8,000 kg/m³. Austenitic grades such as 304 and 316 are generally at the upper end of that range, while ferritic and martensitic grades are usually lighter. Duplex grades normally sit between the two. Density is mass divided by volume. It should not be confused with strength, hardness or corrosion resistance. A lower-density grade is not automatically a better lightweight material: its mechanical properties, corrosion performance, fabrication method and life-cycle cost still control material selection. Stainless Steel Density Chart by Grade The following figures are typical nominal values at or near room temperature (about 20°C). They are suitable for preliminary weight calculation, costing and logistics planning. For critical design, contractual mass guarantees or material verification, use the applicable producer data sheet, purchase specification or material test certificate. Stainless Steel Grade Metallurgical Family Density (g/cm³) Density (kg/m³) Density (lb/in³) 304 / 304L Austenitic 7.93 7,930 0.286 316 / 316L Austenitic 7.98 7,980 0.288 321 Austenitic, Ti-stabilized 7.93 7,930 0.286 904L High-alloy austenitic 8.00 8,000 0.289 430 Ferritic 7.70 7,700 0.278 410 Martensitic 7.75…
Stainless steel is corrosion-resistant, not corrosion-proof. Learn why it rusts, compare 304, 316L and duplex grades by environment, and prevent corrosion failures.
Learn why international buyers source stainless steel from China, how global delivery works, and the practical steps for quality, compliance and shipping.
The dimensional accuracy of castings is one of their key quality indicators, and casting dimensional tolerance standards serve as the objective basis for assessing this accuracy. Auderson Metal strictly adheres to the national standard GB/T6414-2017. For investment castings, the corresponding tolerance grade is selected based on the maximum nominal dimension, as follows: 1：When the maximum nominal dimension is ≤ 100, select grades DCTG4 through DCTG6. 2：100 < Maximum Nominal Dimension ≤ 400: Select Grade DCTG4 to DCTG8. 3：When the maximum nominal size exceeds 400, select grades DCTG4 through DCTG9. Casting Dimensional Tolerance (DCTG) Nominal Size Casting Dimensional Tolerance Grade (DCTG) and Corresponding Linear Dimension Tolerance Values Above Up to DCTG1 DCTG2 DCTG3 DCTG4 DCTG5 DCTG6 DCTG7 DCTG8 DCTG9 – 10 0.09 0.13 0.18 0.26 0.36 0.52 0.74 1 1.5 10 16 0.1 0.14 0.2 0.28 0.38 0.54 0.78 1.1 1.6 16 25 0.11 0.15 0.22 0.3 0.42 0.58 0.82 1.2 1.7 25 40 0.12 0.17 0.24 0.32 0.46 0.64 0.9 1.3 1.8 40 63 0.13 0.18 0.26 0.36 0.5 0.7 1 1.4 2 63 100 0.14 0.2 0.28 0.4 0.56 0.78 1.1 1.6 2.2 100 160 0.15 0.22 0.3 0.44 0.62 0.88 1.2 1.8 2.5 160 250 – 0.24 0.34 0.5 0.7 1 1.4 2 2.8 250 400 – – 0.4 0.56 0.78 1.1 1.6 2.2 3.2 400 630 – – – 0.64 0.9 1.2 1.8 2.6 3.6 630 1000 – – – 0.72 1 1.4 2 2.8 4 Casting Straightness Tolerance Nominal Size Casting Geometrical Tolerance Grade (GCTG) and Corresponding Straightness Tolerances Above Up to DCTG2 DCTG3 DCTG4 DCTG5 DCTG6 DCTG7 DCTG8 – 10 0.08 0.12 0.18 0.27 0.4 0.6 0.9 10 30 0.12 0.18 0.27 0.4 0.6 0.9 1.4 30 100 0.18 0.27 0.4 0.6 0.9 1.4 2 100 300 0.27 0.4 0.6 0.9 1.4 2 3 300…
Aodson Metal is preparing to launch a new special-material fastener business on June 1, 2026, expanding its supply capability for customers who need reliable components in high-temperature, corrosive, and high-load environments. The new line will focus on nickel-based superalloy fasteners, including bolts, nuts, screws, studs, washers, and customized machined fastening parts. These materials are selected for applications where standard carbon steel or common stainless steel fasteners may not provide enough strength, oxidation resistance, or long-term stability. Built for Demanding Working Conditions Nickel-based alloys are widely used in operating environments that combine heat, pressure, chemical exposure, and mechanical stress. Aodson Metal’s fastener program is designed to support industries such as energy equipment, chemical processing, marine engineering, heat treatment systems, furnace equipment, pumps, valves, and high-performance machinery. Depending on customer requirements, the company will support commonly requested high-temperature and corrosion-resistant alloy grades, with production arranged around drawing specifications, thread standards, mechanical performance targets, and surface requirements. The goal is not only to provide a fastener that fits, but to provide a component that remains dependable throughout the service life of the equipment. From Material Selection to Finished Fastener Aodson Metal will combine its metalworking experience with controlled sourcing, machining, threading, inspection, and documentation support. For special-material fasteners, every detail matters: raw material traceability, dimensional tolerance, thread accuracy, surface condition, and packaging all affect how the part performs after installation. The upcoming business will support both standard sizes and made-to-order fasteners based on customer drawings or samples. For projects involving non-standard dimensions, special head types, close tolerance threads, or small-batch development, Aodson Metal will work with customers to review the technical requirements before production. Why This Matters for Customers Fasteners are often small parts, but in high-temperature equipment they can become critical safety and reliability components. When the working environment is severe, material…
In today’s fast-paced industrial landscape, where precision, durability, and complex design are non-negotiable, precision casting (investment casting) stands as a transformative manufacturing technology. It turns intricate engineering visions into high-quality metal components with unmatched accuracy—making it indispensable across aerospace, automotive, medical, marine, and industrial machinery sectors. For global buyers seeking reliable, cost-effective, and custom precision casting solutions, Taizhou Aodson Metal Technology Co., Ltd. is your trusted one-stop partner. What Makes Precision Casting Indispensable? Precision casting (lost-wax casting) is celebrated for its ability to produce near-net-shape parts with exceptional dimensional accuracy (tolerance as tight as 0.01mm) and smooth surface finishes, minimizing post-processing. Its core advantages include: From aerospace turbine blades enduring 1,100°C heat to medical implants requiring biocompatibility, and from marine hardware resisting saltwater corrosion to automotive turbocharger components boosting efficiency—precision casting powers innovation across industries. Taizhou Aodsen Metal Technology: Your Global Precision Casting Expert With 10+ years of expertise (since 2015) and a focus on silica sol investment casting, Aodsen Metal (formerly Haijin Stainless Steel) has established itself as a leading OEM/ODM manufacturer serving clients worldwide. Here’s why global partners choose us: 1. Unrivaled Technical & Production Capacity 2. Material Expertise for Every Industry We specialize in custom casting with a vast material portfolio, tailored to your application: 3. Industry-Proven Applications Our components empower critical sectors globally: 4. Quality & Cost Advantage Why Choose Aodsen as Your Global Partner? In a competitive global market, you need a supplier that combines technical mastery, reliable delivery, and cost efficiency. Aodsen Metal: Ready to Elevate Your Manufacturing? Whether you need complex custom castings, high-volume production, or end-to-end metal component solutions, Taizhou Aodson Metal Technology delivers precision you can trust. Let’s turn your design into a high-performance reality. Contact us today for a free quote, technical consultation, or sample request: Precision casting isn’t just…
