Yumei Hardware provides custom stainless steel CNC machining services for precision components, prototypes, and production parts. We machine a wide range of stainless steel grades, including 303, 304, 304L, 316, 316L, 410, 420, 430, 440C, and 17-4 PH stainless steel.
Precision turning for cylindrical and rotational stainless steel components, with consistent control of diameters, threads, grooves, and other critical features.
Ideal for shafts, pins, bushings, sleeves, spacers, and threaded components.
CNC milling for stainless steel parts with holes, slots, pockets, contours, and multi-feature surfaces.
Suitable for brackets, housings, blocks, mounting parts, and precision mechanical components.
Combining turning and milling in one machining process for parts that require both rotational and milled features.
Helps reduce setups while maintaining accurate positioning between different features.
5-axis machining provides greater flexibility for complex geometries, angled surfaces, deep cavities, and multi-sided parts.
Suitable for complex stainless steel components that require machining from multiple angles.
Swiss machining is designed for small-diameter, slender, and highly detailed stainless steel components.
Ideal for precision pins, miniature shafts, connector components, sleeves, and other small parts.
Complete your stainless steel parts with drilling, tapping, threading, chamfering, grooving, and deburring.
These secondary operations help meet assembly requirements and prepare parts for final application.
Excellent machinability with good corrosion resistance, making it a popular choice for precision CNC turning and complex machined parts.
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A versatile stainless steel grade offering good corrosion resistance, strength, and machinability for a wide range of CNC machined components.
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A low-carbon version of 304 with improved weldability and good corrosion resistance, suitable for fabricated and machined components.
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Known for its excellent corrosion resistance, particularly in demanding environments, making it suitable for industrial and marine-related components.
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Low-carbon stainless steel with excellent corrosion resistance and weldability, ideal for components exposed to moisture, chemicals, and harsh environments.
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A martensitic stainless steel offering good strength, hardness, and wear resistance for components exposed to mechanical stress.
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A hardenable stainless steel with high hardness and wear resistance, suitable for precision components requiring a durable surface.
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A ferritic stainless steel with good corrosion resistance and dimensional stability, providing a cost-effective option for various industrial parts.
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A high-carbon stainless steel known for excellent hardness and wear resistance, suitable for demanding precision components.
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A precipitation-hardening stainless steel combining high strength, hardness, and corrosion resistance for demanding mechanical applications.
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| Grade | Machinability | Corrosion Resistance | Strength / Hardness | Typical Applications |
|---|---|---|---|---|
| 303 | Excellent | Moderate | Moderate | Precision turned parts |
| 304 | Good | Good | Good | General industrial parts |
| 304L | Good | Good | Good | Welded components |
| 316 | Moderate | Excellent | Good | Marine and chemical parts |
| 316L | Moderate | Excellent | Good | Medical and food equipment |
| 410 | Moderate | Moderate | High after heat treatment | Shafts and valves |
| 420 | Moderate | Moderate | High | Wear-resistant components |
| 430 | Moderate | Good | Moderate | Appliance and decorative parts |
| 440C | Difficult | Good | Very High | Bearings and tooling |
| 17-4 PH | Moderate to Difficult | Good | Very High | Aerospace and high-strength parts |
The natural finish after CNC turning or milling, with visible tool marks and a clean industrial appearance. Suitable for functional parts where additional cosmetic finishing is not required.
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Brushing creates a consistent linear texture with a satin appearance, helping reduce glare and create a clean, professional surface.
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Polishing removes machining marks and creates a smoother, brighter surface. The finish can range from semi-polished to high-gloss or mirror-like depending on the required appearance.
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Bead blasting creates a consistent matte texture while reducing visible machining marks and surface reflections. It is suitable when a clean, uniform appearance is preferred.
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Passivation removes free iron and helps restore the protective chromium-rich oxide layer on stainless steel, improving corrosion resistance without adding a conventional coating.
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Electropolishing removes a controlled amount of material from the surface to create a smoother, brighter finish while improving cleanability and corrosion resistance.
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Creates a dark black appearance with a low-reflective surface, suitable for functional stainless steel components where appearance and surface protection are required.
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We can arrange additional surface finishing based on your drawings, appearance requirements, functional needs, and application.
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Precision stainless steel components for aerospace equipment and supporting systems, where dimensional accuracy, strength, and reliable performance are essential.
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Custom stainless steel CNC parts for automotive systems, equipment, and components requiring durability, dimensional consistency, and corrosion resistance.
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Precision-machined stainless steel components for semiconductor equipment, where cleanliness, dimensional accuracy, and surface quality are critical.
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Stainless steel CNC components for new energy equipment and systems, designed for demanding mechanical and environmental conditions.
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Precision stainless steel parts for robotic and automated systems, supporting accurate movement, positioning, and mechanical assembly.
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Custom stainless steel components for industrial machinery and equipment requiring strength, wear resistance, corrosion resistance, and reliable operation.
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A: We support commonly requested stainless steel grades including 303, 304, 304L, 316, 316L, 410, 420, 430, 440C and 17-4 PH. Material availability should be confirmed according to the project requirements.
A: There is no single best stainless steel grade for every application. 303 is often selected when machinability is the priority, while 304 provides a good balance of cost and corrosion resistance. 316 or 316L is generally preferred for more demanding corrosive environments, while 17-4 PH is suitable when high strength is required.
A: Yes. 303 is specifically designed for improved machinability and chip breaking. It is often preferred for high-volume precision turning, although its corrosion resistance is generally lower than 304 and 316.
A: Yes. 316 and 316L can be CNC milled, turned and processed using other suitable CNC methods. Because 316 can experience work hardening and higher cutting forces, machining parameters and tooling need to be selected carefully.
A: Yes. 5-axis CNC machining is suitable for stainless steel components with complex geometries, multiple angled surfaces and difficult-to-reach features.
A: Yes. Swiss CNC machining is particularly suitable for small, slender and high-precision stainless steel components such as pins, shafts, connectors and medical components.
A: Depending on the project, available finishes can include as-machined, brushed, polished, bead blasted, passivated and other finishing options.
A: Yes. Custom stainless steel CNC machining can be used for prototypes as well as low-volume and production components.
