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Help CenterStainless Steel Ring for Industrial Sealing 304 Material 30mm OD 25mm ID 5mm Thickness
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Welcome to Dongguan HonHo Jewelry Co., Ltd., a professional manufacturer established in 2010 with over a decade of precision metalworking experience. Our factory spans 3,000–5,000 square meters and employs 51–100 skilled workers. We specialize in producing high-quality industrial sealing components, including this Stainless Steel Ring for Industrial Sealing made from premium 304 stainless steel. With dimensions of 30mm outer diameter (OD) × 25mm inner diameter (ID) × 5mm thickness, this ring is designed for reliable sealing in demanding industrial environments. Our commitment to quality is backed by ISO9001 certification and annual export value of US$2.5–5 million, serving global markets including North America, Europe, Asia, and beyond.
This stainless steel ring is crafted from Grade 304 stainless steel, known for its excellent corrosion resistance, high strength, and durability. It is ideal for use as a sealing gasket, spacer, or wear ring in pipe flanges, hydraulic systems, pneumatic equipment, and mechanical assemblies. The precision dimensions (30mm OD, 25mm ID, 5mm thickness) ensure a tight, leak-proof fit. Our advanced CNC machining and stamping processes guarantee consistent tolerances and smooth edges, minimizing the risk of damage to mating surfaces.
Key Features & Benefits
- Material Excellence: Made from AISI 304 stainless steel (0.08% carbon, 18-20% chromium, 8-10.5% nickel) – excellent resistance to oxidation, acids, and alkalis.
- Precision Dimensions: OD = 30.0mm ±0.1mm, ID = 25.0mm ±0.1mm, Thickness = 5.0mm ±0.05mm – ensures compatibility with standard sealing grooves.
- Versatile Application: Suitable for static sealing in flanges, pumps, valves, compressors, and as a backup ring for O-rings.
- Surface Finish Options: Available in polished, matte, or as-machined finish to suit specific sealing requirements.
- Customizable: We can produce rings in other sizes, materials (316, 430, etc.), and with additional features like chamfers or grooves upon request.
- High Temperature Tolerance: 304 stainless steel operates effectively from -200°C to +800°C, making it suitable for extreme environments.
Technical Specifications
| Parameter | Value |
|---|---|
| Outer Diameter (OD) | 30 mm |
| Inner Diameter (ID) | 25 mm |
| Thickness | 5 mm |
| Material | 304 Stainless Steel (SS304) |
| Hardness | ≤ 90 HRB (annealed condition) |
| Surface Roughness | Ra ≤ 1.6 μm (optional polishing) |
| Corrosion Resistance | Excellent in atmospheric, food, and chemical environments |
| Operating Temperature | -200°C to +800°C |
Quality Assurance & Trust
At Dongguan HonHo Jewelry Co., Ltd., we have been manufacturing precision metal components since 2010. With an ISO9001 certified quality management system, every ring undergoes strict dimensional and material inspection before shipment. Our factory’s annual export value of US$2.5–5 million demonstrates our reliability and global reach. We serve diverse markets including North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, and more. Our port of shipment options include Shenzhen, Dongguan, and Guangzhou, ensuring efficient logistics.
We understand that industrial sealing applications demand zero defect components. That’s why we use advanced CNC machining and deburring processes to deliver rings with consistent dimensions, no burrs, and smooth surfaces. Our team of 51–100 skilled workers ensures each batch meets your specific requirements. Whether you need a standard 30x25x5mm ring or a custom size, we can respond quickly. Our minimum order quantity is flexible, and we welcome both small trial orders and large volume production.
Invest in reliable sealing performance with our stainless steel rings. Contact us today for a quotation or to discuss your custom requirements. We are committed to providing high-quality products at competitive prices, backed by professional after-sales support. Let us be your trusted partner in industrial sealing solutions.
Frequently Asked Questions (FAQ)
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Q1: What is the intended use of this ring?
A: This ring is designed as a static sealing component for flanges, manifolds, and mechanical assemblies where a leak-proof seal is required. It can also serve as a spacer or wear ring. -
Q2: Is the ring suitable for high-pressure applications?
A: Yes. 304 stainless steel has good tensile strength. For extreme high-pressure systems, we recommend consulting our technical team to confirm the design parameters. -
Q3: Can you provide rings in other dimensions?
A: Absolutely. We offer custom sizes based on your drawings or samples. Please contact us with your requirements. -
Q4: What surface finishes are available?
A: Standard finishes include mill finish (as-machined) or polished. We can also apply a matte or anti-corrosion coating if needed. -
Q5: Do you offer material certificates?
A: Yes. We can provide material test reports (MTR) for 304 stainless steel upon request. -
Q6: What is the typical lead time?
A: For standard sizes like 30x25x5mm, we usually ship within 7–15 days for quantities up to 10,000 pieces. Custom orders may require 15–25 days. -
Q7: Can I get a sample before bulk order?
A: Yes, we offer samples. Sample cost and shipping are negotiable; we may deduct the sample fee from your first bulk order. -
Q8: How do you ensure consistent quality?
A: We follow an ISO9001 quality system. Each ring is inspected for diameter, thickness, and surface defects. Random samples are tested for hardness and dimensional accuracy.
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