316/316L Stainless Steel Investment Castings for Yachts

316 and 316L stainless steel are widely used austenitic stainless steel materials in yacht manufacturing, especially suitable for precision-cast components in marine environments. These materials are made into complex, high-precision parts through precision casting processes (such as investment casting or lost-wax casting), commonly used in yacht marine hardware, fittings, and structural components.

These investment castings are often used in the external and internal parts of yachts, ensuring safety, durability, and aesthetics. Common applications include:

• Marine Hardware: Fairleads, cleats, anchor chain wheels, stanchion bases.
• Deck Fittings: Handrails, steps, drainage channels, light fixture brackets.
• Propulsion Systems: Propeller shaft sleeves, valve bodies, pump body components.
• Cabin Decoration: Door handles, hinges, fasteners.
• Other: Lifesaving equipment brackets, boarding ladders, sail fittings (for sailing yachts).

• Process Flow: Wax pattern making → Shell forming → Pouring → Heat treatment → Machining → Surface treatment (passivation or electropolishing).
• Standard Certification: Complies with ASTM A351/A743 (casting specifications), ISO 9001 quality system. Yacht manufacturers often require CE or USCG certification.
• Supplier Considerations: Choose manufacturers with marine-grade experience (such as those in Ningbo, China, or European suppliers). Note that 316L is used for welded parts, and 316 is used for static parts. Prices vary depending on size and complexity, typically ranging from $10 to $500 per piece.
• Maintenance: Clean regularly, avoid contact with iron filings; inspect for cracks during use, and ensure bolts are tightened.