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Help Center304 Stainless Steel Ring, 8-20mm Width, Mirror Polish Finish for Industrial Use
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As a professional manufacturer with over a decade of experience, Dongguan HonHo Jewelry Co., Ltd. (established 2010) proudly introduces our 304 Stainless Steel Ring with a mirror polish finish, specifically designed for industrial applications. Our factory spans 3,000–5,000 square meters and is staffed by 51–100 skilled employees, enabling us to produce high-precision components that meet rigorous quality standards. This ring combines the exceptional corrosion resistance of 304 stainless steel with a brilliant mirror surface, making it ideal for both functional and aesthetic uses in demanding environments.
The 304 Stainless Steel Ring is available in widths from 8mm to 20mm, with fully customizable inner and outer diameters to suit your specific machinery, assembly, or decorative requirements. The mirror polish finish not only enhances visual appeal but also reduces friction and facilitates easy cleaning—a critical advantage in food processing, pharmaceutical, and sanitary applications. Our rings are manufactured using advanced CNC turning and polishing equipment, ensuring consistent dimensional accuracy and a flawless surface.
Key Features & Technical Specifications
- Material: Premium 304 stainless steel (0.08% carbon, 18-20% chromium, 8-10.5% nickel) – excellent corrosion resistance, durability, and formability.
- Surface Finish: Mirror polish (Ra ≤ 0.2 μm achievable) – high gloss, low roughness, resistant to dirt adhesion.
- Width Range: 8 mm to 20 mm (customizable in 0.5 mm increments).
- Dimensional Tolerance: ±0.05 mm on inner/outer diameter and width (tighter tolerances available upon request).
- Thickness: Standard from 1.0 mm to 5.0 mm (customizable).
- Edge Treatment: Deburred and rounded edges for safe handling and snug fit.
- Certification: Manufactured under ISO9001 quality management system.
Performance Parameters (Typical Values)
| Tensile Strength | ≥ 520 MPa |
| Yield Strength | ≥ 205 MPa |
| Hardness (Rockwell B) | ≤ 92 HRB |
| Surface Roughness (Mirror Polish) | Ra ≤ 0.2 μm |
| Operating Temperature | -196 °C to 800 °C (intermittent) |
Industrial Applications
- Mechanical & Engineering: Spacers, bushings, bearing retainers, alignment rings.
- Chemical & Pharmaceutical: Sanitary fittings, valve components, mixing vessel parts.
- Food Processing: Hygienic conveyor guides, pipe couplings, inspection equipment.
- Automotive & Aerospace: Vibration dampening rings, sealing washers, structural supports.
- Decorative & Architectural: Handrail accents, furniture hardware, lighting fixtures.
Why Choose Our 304 Stainless Steel Rings?
- Superior Corrosion Resistance: Withstands exposure to moisture, chemicals, and salt spray – ideal for outdoor or harsh industrial environments.
- Mirror Polish Advantage: The high-gloss surface reduces bacterial growth, eases cleaning, and provides a premium appearance without extra coatings.
- Full Customization: We tailor inner/outer diameter, width, thickness, edge profile, and packaging to your exact drawings or sample.
- Consistent Quality: Our ISO9001-certified processes ensure every ring meets precise tolerances and surface criteria.
- Fast Turnaround: Standard lead time 7–15 working days; rush orders available for urgent needs.
With an annual export value of US$2.5 Million – US$5 Million, our products are trusted by customers across North America, South America, Europe, Southeast Asia, Africa, Oceania, the Middle East, and many other regions. We ship from major ports including Shenzhen, Dongguan, and Guangzhou, offering flexible logistics to meet your delivery requirements. Over the past decade, we have built a reputation for reliability, precision, and customer-centric service.
Backed by a skilled team of 51–100 employees, a modern 3,000–5,000 sqm facility, and strict quality control, we are confident in delivering 304 stainless steel rings that exceed your expectations. Request a quote or send your drawings today – our engineers will provide quick feedback and a competitive price. Let us be your long-term partner for industrial metal components!
Frequently Asked Questions (FAQ)
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Q: Is the 304 stainless steel ring suitable for food contact applications?
A: Yes – 304 stainless steel is widely accepted in the food industry for its corrosion resistance and non-toxic nature. Our mirror polish further reduces bacterial adhesion, making it a hygienic choice. -
Q: What tolerance can you hold on the inner diameter?
A: Standard tolerance is ±0.05 mm. Tighter tolerances (down to ±0.02 mm) are available upon request for high-precision assemblies. -
Q: Can you engrave or mark my company logo on the ring?
A: Absolutely – we offer laser engraving, stamping, or etching services for part numbers, logos, or other markings. Please specify your requirements. -
Q: What is the minimum order quantity (MOQ)?
A: For standard sizes, MOQ is 200 pieces. For custom dimensions, MOQ may be 500 pieces or negotiable depending on complexity. Contact us for details. -
Q: How do you package the rings to prevent scratches during shipping?
A: Each ring is individually wrapped in soft tissue or foam, then packed in sturdy cartons with inner dividers. For large volumes, we use bulk packaging with anti-rust VCI paper. -
Q: Do you provide a certificate of material compliance?
A: Yes – we can provide a mill test certificate (MTC) per EN 10204 3.1 or 2.2, as well as our ISO9001 quality documents upon request. -
Q: Can you produce rings with a matte or brushed finish instead of mirror?
A: Yes – we offer various surface treatments including matte, brushed, satin, and electro-polished. Mirror finish is the most common for industrial use, but we can adapt to your specification. -
Q: What is the typical lead time for a custom order?
A: For custom rings with dimensions and finish confirmed, lead time is usually 10–15 working days. Urgent orders can be expedited to 5–7 days with prior agreement.
For more information or to place an order, feel free to contact our sales team. We look forward to serving you with high-quality stainless steel rings tailored to your industrial needs.
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