We carry out raw material inspection, in-process quality control, and final inspection to ensure that every batch of precision ball products meets customer requirements.

Yes. We provide sample support for testing, technical evaluation, quality confirmation, and purchasing approval.

Yes. As a professional custom steel balls manufacturer, we support customization in size, material, tolerance, hardness, precision grade, and packaging.

Yes. We provide OEM steel balls, ODM ball products, custom packaging, private label service, and specification-based production support.

We manufacture stainless steel balls, bearing steel balls, copper balls, stainless steel frisbee balls, aluminum oxide balls, carbon steel balls, and other custom precision ball products.

• Store in a dry, low-humidity environment to prevent surface oxidation.
• Avoid contact with chlorides, acids, or saltwater.
• Clean with mild soap and water; dry immediately. For heavy use, apply light oil coatings.
• Shelf life is indefinite if stored properly, but inspect for pitting in humid conditions.

• Hardware and household appliances (e.g., switches, knobs).
• Automotive and motorcycle accessories.
• Luggage, cases, and bags (e.g., zippers, rollers).
• Crafts, toys, and plastic products.
• Semi-precision bearings, casters, drawer slides, and turntables.
• Valve pumps, spray bottles (for agitation), sprinkling systems, and locking mechanisms.
• Die casting, stamping, and general industrial fittings.

• Cost-Effective: The cheapest stainless steel option, ideal for budget-conscious projects.
• High Durability: Strong mechanical properties with good formability and weldability.
• Versatile: Non-magnetic nature suits applications like electronics or sensors.
• Eco-Friendly: Lower nickel content reduces reliance on scarce resources.

• Hardness: ≤ HRC 25-28, providing good toughness but not suitable for high-wear environments.
• Corrosion Resistance: Moderate; resistant to atmospheric corrosion, water, and mild chemicals, but lower than 300-series steels. It performs well in dry or indoor conditions but is susceptible to pitting in chloride-rich or acidic environments.
• Magnetic Properties: Non-magnetic in annealed form; can be demagnetized for specific uses.
• Machinability: Excellent; can be easily machined, welded, drilled, or polished.
• Density: Approximately 7.93 g/cm³.
• Temperature Resistance: Good ductility in cold environments (tough at low temperatures) but limited to about 800°C maximum service temperature. They are ferro-alloy based and passivated to enhance surface protection.

201 stainless steel is an austenitic chromium-manganese-nickel alloy, often classified as a "nickel-saving" steel due to its lower nickel content compared to grades like 304 or 316. It contains approximately 16-18% chromium, 3.5-5.5% manganese, 1% silicon, 0.15% carbon, and 0.8-1.5% nickel. This composition makes it a cost-effective alternative to higher-nickel grades while maintaining good formability and strength.

Bearings (90% of use), valves, pumps, automotive components (steering/seating), grinding mills, and high-pressure tools. Forged variants (e.g., 40Cr) for high-temperature/pressure valves.