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Marine-Grade Precision Boat Casting Parts are engineered to thrive in the harshest aquatic environments, where saltwater corrosion, extreme pressure, and constant vibration challenge component durability.
Chifine
Using advanced casting techniques—including investment casting and sand casting—we produce marine hardware from corrosion-resistant alloys that meet ASTM B148 and NORSOK M-650 standards. These parts range from propeller shafts and rudder components to pump housings and deck fittings, each designed to deliver reliable performance in commercial shipping, recreational boating, and offshore energy applications. Our marine castings undergo rigorous testing, including salt fog exposure and mechanical stress trials, to ensure they exceed industry longevity requirements.
Corrosion Resistance: Constructed from duplex stainless steel (2205) and aluminum bronze (C95400), these parts achieve 1,500–2,000 hours of neutral salt fog resistance (per ASTM B117), outperforming standard stainless steel in marine environments.
High-Strength Construction: Investment-cast components offer tensile strengths up to 800 MPa and fatigue resistance exceeding 300 MPa, critical for load-bearing parts like anchor windlass gears.
Dimensional Accuracy: Precision casting achieves tolerances of ±0.1 mm/m and surface finishes of Ra 1.6 μm, reducing friction in moving parts and ensuring watertight seals.
Biocide Compatibility: Materials resist degradation from marine growth inhibitors (e.g., copper-based antifouling paints) and seawater chemistry variations (pH 7.5–8.4).
These castings serve across marine sectors:
Hull & Propulsion: Propeller hubs, stern tubes, and rudder bearings withstand hydrodynamic forces and prevent water ingress.
Deck & Rigging: Cleats, winch housings, and mast fittings provide secure anchoring points for ropes and sails in high-wind conditions.
Mechanical Systems: Pump casings, valve bodies, and heat exchanger manifolds handle seawater circulation and cooling.
Offshore Energy: ROV components, subsea connector housings, and offshore platform hardware endure deep-sea pressures up to 300 bar.
Q: Do your marine castings meet international classification society standards?
A: Yes, our parts are certified by ABS, DNV GL, and Lloyd’s Register, with material traceability documentation for every production batch.
Q: How do you test for saltwater corrosion resistance?
A: We perform neutral salt fog testing (ASTM B117) for 1,000+ hours, followed by visual inspection and weight loss analysis to ensure corrosion rates below 0.01 mm/year.
Q: Can you produce large-scale marine castings (e.g., ship propeller hubs)?
A: Yes, our sand casting facilities handle parts weighing up to 5,000 kg with diameters exceeding 2 meters, using computer-aided mold design for consistency.
Process | Investment casting Precision casting Lost wax casting |
Processing Ability | Surface finishment: Ra 12.5um |
Size tolerance: CT7-CT9 | |
Weight range: 0.1-100kg | |
Material | stainless steel, carbon steel, alloy steel, heat-resistant steel, hardend steel,mild steel |
Application | Agricultural Machinery,Automotive & Railway Industry,Hydraulic Valves & Cylinders,Engineering & Construction Machinery,Municipal Machinery ,Marine Industry,Mining Machinery
|
Surface Treatment | powder coating, sand blasting, painting, polishing, acid pickling, anodizing, enamel, zinc plating, hot-dip galvanizing, electrophoresis, chrome plating. |
Standards | AISI,ATSM,UNI,BS,DIN,JIS,GB etc. |
Inspection | Direct-reading spectrometer,Metallurgical structure analysis,Three-dimensional machine,Pre-Furnace carbon and sulfur analyzer,optical projecto,Tensile testing machine,Inspection gauge,Hardness Test Machine |
Using advanced casting techniques—including investment casting and sand casting—we produce marine hardware from corrosion-resistant alloys that meet ASTM B148 and NORSOK M-650 standards. These parts range from propeller shafts and rudder components to pump housings and deck fittings, each designed to deliver reliable performance in commercial shipping, recreational boating, and offshore energy applications. Our marine castings undergo rigorous testing, including salt fog exposure and mechanical stress trials, to ensure they exceed industry longevity requirements.
Corrosion Resistance: Constructed from duplex stainless steel (2205) and aluminum bronze (C95400), these parts achieve 1,500–2,000 hours of neutral salt fog resistance (per ASTM B117), outperforming standard stainless steel in marine environments.
High-Strength Construction: Investment-cast components offer tensile strengths up to 800 MPa and fatigue resistance exceeding 300 MPa, critical for load-bearing parts like anchor windlass gears.
Dimensional Accuracy: Precision casting achieves tolerances of ±0.1 mm/m and surface finishes of Ra 1.6 μm, reducing friction in moving parts and ensuring watertight seals.
Biocide Compatibility: Materials resist degradation from marine growth inhibitors (e.g., copper-based antifouling paints) and seawater chemistry variations (pH 7.5–8.4).
These castings serve across marine sectors:
Hull & Propulsion: Propeller hubs, stern tubes, and rudder bearings withstand hydrodynamic forces and prevent water ingress.
Deck & Rigging: Cleats, winch housings, and mast fittings provide secure anchoring points for ropes and sails in high-wind conditions.
Mechanical Systems: Pump casings, valve bodies, and heat exchanger manifolds handle seawater circulation and cooling.
Offshore Energy: ROV components, subsea connector housings, and offshore platform hardware endure deep-sea pressures up to 300 bar.
Q: Do your marine castings meet international classification society standards?
A: Yes, our parts are certified by ABS, DNV GL, and Lloyd’s Register, with material traceability documentation for every production batch.
Q: How do you test for saltwater corrosion resistance?
A: We perform neutral salt fog testing (ASTM B117) for 1,000+ hours, followed by visual inspection and weight loss analysis to ensure corrosion rates below 0.01 mm/year.
Q: Can you produce large-scale marine castings (e.g., ship propeller hubs)?
A: Yes, our sand casting facilities handle parts weighing up to 5,000 kg with diameters exceeding 2 meters, using computer-aided mold design for consistency.
Process | Investment casting Precision casting Lost wax casting |
Processing Ability | Surface finishment: Ra 12.5um |
Size tolerance: CT7-CT9 | |
Weight range: 0.1-100kg | |
Material | stainless steel, carbon steel, alloy steel, heat-resistant steel, hardend steel,mild steel |
Application | Agricultural Machinery,Automotive & Railway Industry,Hydraulic Valves & Cylinders,Engineering & Construction Machinery,Municipal Machinery ,Marine Industry,Mining Machinery
|
Surface Treatment | powder coating, sand blasting, painting, polishing, acid pickling, anodizing, enamel, zinc plating, hot-dip galvanizing, electrophoresis, chrome plating. |
Standards | AISI,ATSM,UNI,BS,DIN,JIS,GB etc. |
Inspection | Direct-reading spectrometer,Metallurgical structure analysis,Three-dimensional machine,Pre-Furnace carbon and sulfur analyzer,optical projecto,Tensile testing machine,Inspection gauge,Hardness Test Machine |
