Marine Grade Stainless Steel 316 CNC Turned Propeller Shaft with 0.4μm Ra Surface Finish
Product Description
This marine-grade stainless steel 316 CNC turned propeller shaft delivers superior corrosion resistance for saltwater environments. Featuring Ra 0.4μm surface finish and ±0.02mm taper accuracy, the shaft is manufactured from 316 stainless steel that withstands 500+ hours of salt spray testing without pitting. Passivated finish further enhances corrosion resistance. Each shaft is dynamically balanced and inspected with precision runout measurement.
As a leading CNC turning manufacturer with over 15 years of precision machining experience, we produce Marine Grade Stainless Steel 316...
Technical Specifications
| Parameter | Specification |
|---|---|
| Material | Stainless Steel 316 |
| Tolerance | ±0.02mm Taper |
| Surface Treatment | Passivated Ra 0.4μm |
| Material Grade | Stainless Steel 316 |
| Tolerance | ±0.02mm Taper |
| Surface Finish | Ra 0.4μm Passivated |
| Corrosion Test | 500h Salt Spray |
| Length | Up to 1500mm |
Key Selling Points
Factory Strength
50+ CNC Machines
Swiss-type lathes, 3/4/5-axis machining centers, turn-mill centers from Citizen, Star, Doosan, and Mazak
Advanced QC Lab
CMM, 2D vision measurement, roughness tester, hardness tester, salt spray chamber, spectral analyzer
Certifications
ISO 9001:2015, SGS certified, material traceability, PPAP Level 3, full inspection reports
Engineering Team
15+ engineers providing DFM analysis, process optimization, and free technical consultation
Monthly Capacity
500,000+ precision turned parts per month with stable quality and on-time delivery
Global Export
Exported to 30+ countries across North America, Europe, Japan, Korea, and Southeast Asia
Applications
- Marine Propulsion Systems
- Yacht Drive Shafts
- Commercial Fishing Vessels
- Submersible Pump Shafts
- Offshore Platform Equipment
Frequently Asked Questions
Q: Why 316 over 304 for marine applications?
A: 316 stainless steel contains 2-3% molybdenum which provides significantly better resistance to chloride pitting and crevice corrosion in saltwater compared to 304. We recommend 316 for any seawater-exposed application.
Q: What is the maximum shaft length you can produce?
A: We can CNC turn shafts up to 1500mm in length with consistent diameter tolerance. Longer shafts available with center-rest support.
Q: Do you provide dynamic balancing?
A: Yes, we perform dynamic balancing to G6.3 or better grade on all rotating shafts. Balance certificates are provided.
Get Your Custom Quote Today
Send us your drawings or samples. We provide free DFM analysis and quotation within 24 hours.
ISO 9001:2015 Certified | 15+ Years Experience | Global Shipping | OEM/ODM Welcome
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.