2205 Marine Propeller Hub Castings

Product Name: 2205 Duplex Stainless Steel Marine Propeller Shaft Sleeve Castings
(Shandong Hongyang Special Steel - 20 Years of Military-Grade Quality Assurance)

 

 

Shandong Hongyang Special Steel utilizes ZG22Cr5Ni3MoN (2205 Duplex Steel) centrifugal casting technology to manufacture marine propeller shaft sleeves. Certified by nine major classification societies including CCS, DNV-GL, and BV, our products are specifically designed for harsh marine environments with high salinity and flow velocity, offering 5 times better cavitation resistance than conventional 316L stainless steel.

 

 

1. Military-Grade Corrosion Protection

Over 15 years of experience supplying naval equipment

Passed ISO 15324 accelerated seawater corrosion test (1000 hours zero defect)

Certified as "Seawater Corrosion-Resistant Special Steel" by China Classification Society

 

2. Professional Marine Component Customization

Oversized casting capacity: Can produce integral shaft sleeves with diameters Φ200-Φ1500mm and lengths ≤6m

Special-shaped processing: Capable of integrated molding for special structures like guide fins and vibration damping grooves

Fast response: 30-day delivery for urgent orders (standard 45 days)

 

3. Outstanding Mechanical Properties

Cavitation resistance: Annual wear <0.5mm at 15m/s flow velocity

Fatigue strength: No cracks under 10⁷ cyclic loads (DNV-RP-C203 standard)

Biofouling resistance: Surface roughness Ra≤3.2μm reduces barnacle attachment by 40%

 

 

Parameter	Value	Certification Standard
Main Composition	Cr:22%, Ni:5.5%, Mo:3%, N:0.18%	ASTM A995
Tensile Strength	≥690MPa	CCS Rules
Seawater Corrosion Rate	≤0.08mm/year (30℃ seawater)	DNV-OS-C101
Dimensional Tolerance	CT6 Grade	ISO 8062

 

 

Ocean-going freighters: Tail shaft sleeves for 180,000 DWT bulk carriers with 200,000 nautical miles service without replacement

Naval vessels: Propeller shaft sleeves for destroyers passing 3000-hour sea trials

Luxury cruise ships: Custom low-noise shaft sleeves for Italian clients reducing vibration by 35%

 

 

Customer provides shaft system drawings/technical specifications

Material engineers deliver material selection proposal within 72 hours

Sign technical agreement (including third-party inspection clauses)

45-day delivery (can be shortened to 30 days for urgent orders)

Provide classification society certificates and NDT reports with shipment

 

 

 

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