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Home > Arts & Crafts > Fashion Accessories > Ring > Factory Direct Stainless Steel Ring Supplier 100% Quality Check Mill Test Report
Factory Direct Stainless Steel Ring Supplier 100% Quality Check Mill Test Report
Product Spotlights
Factory-direct stainless steel rings with 100% quality inspection and Mill Test Report per shipment. ISO9001 certified manufacturer with 10+ years experience, quick customization, tight tolerances (±0.05mm), and competitive pricing. Trusted by global clients in automotive, petrochemical, and machinery industries.
US$ 2.4 - 4.8
MOQ: 30 Pieces
Key Specifications
Get Latest Price
Material:
Other, Stainless Steel 304/316/L
Inner Diameter:
10mm - 500mm or Customized
Outer Diameter:
20mm - 600mm or Customized
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
10 days
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Material
Other, Stainless Steel 304/316/L
Inner Diameter
10mm - 500mm or Customized
Outer Diameter
20mm - 600mm or Customized
Thickness
1mm - 50mm or Customized
Surface Finish
Polished / Sandblasted / Passivated / Customized
Hardness
HRB 80-95 (Annealed or Customized)
Application
Sealing, Mechanical Engineering, Automotive, Petrochemical
Packaging
Carton / Pallet / Wooden Case
Certification
ISO9001:2015, Mill Test Report Provided
Welcome to Dongguan HonHo Jewelry Co., Ltd. – your reliable factory-direct stainless steel ring supplier. Established in 2010 and occupying a 3,000–5,000 sqm production facility, we have been dedicated to manufacturing high-quality stainless steel rings for over a decade. Every ring we deliver undergoes 100% quality inspection and is accompanied by a Mill Test Report to ensure full material traceability and performance compliance. Our rings are engineered to meet the most demanding industrial applications, providing consistent dimensions, excellent corrosion resistance, and long service life.
Our product range covers various types of stainless steel rings, including plain washers, sealing rings, spacer rings, retaining rings, and custom-designed ring components. With our own factory and experienced team of 51–100 employees, we are able to offer competitive pricing without compromising on quality. We have exported to major markets worldwide – North America, Europe, Southeast Asia, the Middle East, Africa, and Oceania – serving clients in mechanical engineering, automotive, petrochemical, food processing, and many other industries.
Key Features & Technical Advantages
- Superior Material Quality – Manufactured from premium-grade stainless steel (SS304, SS316, SS316L) sourced from reputable mills. Each batch comes with a certified Mill Test Report confirming chemical composition and mechanical properties.
- Precision Dimensional Control – CNC machining and advanced stamping processes ensure tight tolerances (±0.05mm on inner diameter, ±0.1mm on outer diameter). Our quality control team performs 100% dimensional checks on every production lot.
- Excellent Corrosion Resistance – The stainless steel composition provides strong resistance to rust, oxidation, and chemical attack, making these rings ideal for harsh environments such as marine, chemical plants, and high-humidity areas.
- Versatile Surface Finishes – Options include polished, matte, sandblasted, passivated, electro-polished, and more. Custom finishes can be applied to meet specific friction, sealing, or aesthetic requirements.
- Wide Size Range & Customization – We offer standard sizes from 10mm to 500mm inner diameter (customizable up to 600mm), with thickness from 1mm to 50mm. Non-standard dimensions, special cross-sections, and unique shapes are available upon request.
- Consistent Quality Assurance – Our factory operates under ISO9001:2015 certified quality management system. Each ring is inspected for dimensions, hardness, surface defects, and material grade before packing.
| Parameter | Standard Range | Customizable |
|---|---|---|
| Material Grade | SS304, SS316, SS316L | Other grades (e.g., 17-4PH, 321) on request |
| Inner Diameter | 10–500 mm | Up to 600 mm |
| Outer Diameter | 20–600 mm | Up to 700 mm |
| Thickness | 1–50 mm | Up to 80 mm |
| Hardness (HRB) | 80–95 | Annealed, 1/4 hard, 1/2 hard, full hard available |
| Surface Roughness (Ra) | ≤0.8 μm (polished) | Ra 0.2–6.3 μm achievable |
| Dimensional Tolerance | ±0.05 mm (ID), ±0.1 mm (OD) | Tighter tolerances possible with extra precision |
Why Choose HonHo as Your Stainless Steel Ring Partner?
- Factory-Direct Pricing – Eliminate middleman costs. As a manufacturer with 51–100 employees and an annual export value of US$2.5–5 million, we offer competitive prices directly from our 3,000–5,000 sqm facility in Dongguan.
- Rigorous Quality Control – Every ring is subject to 100% inspection for dimensions, surface quality, and material composition. Our quality department uses Mitutoyo instruments and hardness testers to guarantee consistency.
- Mill Test Report Included – For every shipment, we provide a comprehensive Mill Test Report certifying the chemical and mechanical properties of the raw material. This ensures full traceability and peace of mind for your engineering projects.
- Flexible Customization – We accept custom OEM/ODM orders. Whether you need special dimensions, unique cross-sections, extra-fine surface finishes, or specific packaging (bulk bags, pallets, wooden crates) – we can tailor the solution.
- Global Export Experience – We have successfully shipped to North America, South America, Europe, Southeast Asia, Africa, Oceania, the Middle East, and more. Our logistics team handles customs clearance and offers multiple shipping options (FOB Shenzhen/Dongguan/Guangzhou, CIF, etc.).
At Dongguan HonHo Jewelry Co., Ltd., we take pride in our 10+ years of manufacturing excellence and our ISO9001:2015-certified quality system. Our team of skilled engineers and workers ensures each stainless steel ring meets your exact requirements. We have supplied to demanding industries such as automotive OEMs, petrochemical equipment manufacturers, and food processing machinery builders – our rings are trusted for their reliability and long service life.
Ready to source high-quality stainless steel rings directly from the factory? Contact us today for a quote, or send your drawings and specifications for a custom solution. We look forward to becoming your trusted partner in precision metal components.
Frequently Asked Questions (FAQ)
-
Q: What types of stainless steel rings do you produce?
A: We produce a wide range including flat washers, sealing rings, spacer rings, retaining rings, thrust rings, and custom-shaped rings. Any industrial ring requiring stainless steel can be manufactured. -
Q: Do you provide a Mill Test Report with every order?
A: Yes, absolutely. Every shipment includes a Mill Test Report (MTR) that traces the raw material back to the original mill, showing chemical composition and mechanical properties. -
Q: Can you make rings with non-standard dimensions or special tolerances?
A: Certainly. We specialize in custom orders. Just provide your drawing or detailed specifications, and we will produce rings to your exact requirements. Tighter tolerances are available at extra cost. -
Q: What is the minimum order quantity (MOQ)?
A: For standard sizes, MOQ is 500 pieces per size. For custom orders, MOQ may vary depending on complexity – typically 200–500 pieces. We also accept trial orders for new designs. -
Q: What surface treatments do you offer?
A: We offer polished, matte, sandblasted, passivated, electro-polished, and bright annealing finishes. We can also apply special coatings like PTFE or DLC upon request. -
Q: How do you ensure quality consistency in mass production?
A: We follow an ISO9001:2015 quality management system. Incoming raw materials are inspected, in-process checks are conducted every 30 minutes, and final 100% inspection is performed on dimensions, surface, and hardness before packing. -
Q: What is your typical lead time?
A: For standard sizes, lead time is 7–15 working days after deposit. For custom orders, it is 15–25 working days depending on complexity. Rush orders can be arranged. -
Q: Which ports do you ship from?
A: We ship from Shenzhen, Dongguan, or Guangzhou ports. We can arrange sea, air, or express courier (DHL, FedEx, UPS) according to your preference.
Send Inquiry to This Supplier
1Yr
Business Type
Manufacturer
Year Established
2010
Factory Size
3,000-5,000 square meters
Annual Export Value
US$2.5 Million - US$5 Million
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