Qingdao Sande Technology Co., LTD
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Custom Machined Parts Stainless Steel Marine Ring Screw Cable Ring Parts
Engineered for Harsh Marine Environments
We manufacture high-performance stainless steel ring screws and cable rings designed to withstand saltwater corrosion, extreme loads, and constant vibration. CNC-machined from 316/316L marine-grade stainless steel, these components meet stringent DNV-GL, ABS, and ISO 12215-9 standards for marine hardware.
PRODUCT DETAILS
1 . Material Specifications
Primary Material : 316/316L Stainless Steel (A4 Marine Grade)
Alternative Options : 304, Duplex 2205 (for higher strength)
Key Properties :
Tensile Strength : 515–690 MPa
Corrosion Resistance : Pitting Resistance Equivalent Number (PREN) >35
Surface Finish : Passivated or electropolished (Ra ≤1.6 μm)
2 . Manufacturing Process
Precision CNC Machining : ±0.05mm tolerance for critical dimensions
Threading : ISO metric, UNC/UNF, or custom profiles (rolled or cut threads)
Heat Treatment : Solution annealing for stress relief (optional)
Secondary Operations :
Deburring & edge radiusing
Hot-dip galvanizing (for hybrid steel/stainless systems)
| Part Type | Size Range | Key Features |
|---|---|---|
| Ring Screws | M6 to M36 | Eye bolts, U-bolts, load-rated |
| Cable Rings | 10mm to 150mm ID | Welded/seamless construction |
| Custom Terminals | Per client drawings | Swaged, threaded, or clamped |
4 . Quality Assurance
Certifications : DNV-GL, ABS, Lloyd's Register Type Approval
Testing :
Salt spray testing (1000+ hours to ASTM B117)
Load testing to 150% of working limit
Magnetic particle inspection (for critical welds)
5. Applications
Marine & Offshore :
Rigging systems
Mooring equipment
Sailboat hardware
Industrial :
Crane slings
Safety tether points
Architectural cable systems
ORDERING INFORMATION
Submit your CAD drawings or specifications for instant DFM feedback!