5-axis CNC milling drawing: Al 7075-T6 block with pockets, toolpath and dimensions

Industry · Marine

Saltwater champion. Offshore platforms. Marine grade.

Q: Saltwater corrosion material selection?

For maximum saltwater corrosion resistance: Monel 400/K-500 (best for immersed service), duplex 2205/2507 (great pitting resistance), 316L (general marine, less severe), naval brass C464 (bronze family, good for fittings). Avoid: carbon steel without coating (rusts rapidly), 304 stainless (not seawater-rated), aluminum grades without anodizing (galvanic corrosion with seawater).

Q: Galvanic corrosion concerns?

Marine assemblies often contain multiple metals — galvanic corrosion between dissimilar metals is major concern. Galvanic series: gold/platinum (most noble) → titanium → nickel → stainless → bronze/brass → carbon steel → aluminum → zinc → magnesium (most active). Isolation techniques: dielectric breaks between dissimilar metals, sacrificial anodes, careful material selection. Our DFM review flags potential galvanic issues.

Q: Bronze vs brass for marine?

Bronze: copper + tin alloy. Superior saltwater corrosion resistance, naval standard. Higher cost. Brass: copper + zinc. Good for above-waterline, not ideal for immersed service (zinc leaching = dezincification in saltwater). Naval brass (C464) is brass with tin addition for improved saltwater resistance — middle ground. For immersed fittings: bronze. For above-waterline hardware: naval brass or bronze both acceptable.

Q: Submarine non-magnetic requirements?

Submarine applications often require non-magnetic materials — avoid interference with MAD sensors (magnetic anomaly detection). Non-magnetic options: austenitic 304/316L stainless (non-magnetic in annealed condition), Monel 404 (special non-magnetic grade), beryllium copper, titanium, aluminum. Specify non-magnetic requirement on drawings — affects material selection.

Q: Offshore platform applications?

Offshore platforms (oil and gas): combination of saltwater + H2S + pressure + temperature. Material selection critical. Common: duplex 2205 or 2507 for piping and pressure equipment, Monel K-500 for wellhead + subsea, Inconel 718 for most critical sour service, titanium for ballast tanks in specific applications. Full NACE MR0175 compliance mandatory for sour service.

Q: Lead times for marine programs?

Commercial marine: 4-8 weeks typical. Offshore platform programs: 8-16 weeks with full documentation. Submarine and military marine: 12-24 weeks with security review. Material lead times for specialty marine alloys (Monel K-500, duplex 2507) can be 4-8 weeks — often drives program timeline. Plan 6+ months ahead for complex marine programs.

CNC manufacturing for marine and shipbuilding industry. Saltwater-resistant materials — Monel 400/K-500, 316L stainless, duplex 2205/2507, naval brass, bronze. Shipbuilding hardware, boat components, offshore platform equipment, submarine systems, marine electronics.

Email an RFQ WhatsApp us All industries

Energy & heavy industryWuxi, ChinaMOQ 1 partDFM review included

Technical plate for Saltwater champion. Offshore platforms. Marine grade.

How we run it

Industry marine shipbuilding

Marine industry spans commercial shipping, pleasure craft, military vessels, offshore platforms, and marine research. Each has specific requirements.

3-7 daysTypical lead time

MOQ 1No minimum quantity

<4 hQuote response

ISO 9001Quality system

01 · Marine applications

Marine manufacturing categories.

Ship propulsion

Propeller shafts, propeller hubs, stern tube bearings. K-500 Monel for high-stress applications.

Hull fittings

Through-hull fittings, stuffing boxes, rudder hardware. Bronze or naval brass standard.

Deck hardware

Cleats, winches, deck fittings. Stainless or anodized marine-grade aluminum.

Engine components

Marine engine components — pumps, valves, fuel system hardware.

Offshore platform

Offshore oil platform fluid handling, structural components. Duplex for severe service.

Submarine systems

Submarine fluid systems, sensor hardware. Non-magnetic specification often required.

Boat electronics

Marine electronics enclosures, sonar hardware, navigation equipment.

Rigging hardware

Sailboat rigging — turnbuckles, shackles, chainplates. High-strength marine stainless.

Desalination

Desalination plant equipment — high-pressure pumps, membrane housings.

Marine industry spans commercial shipping, pleasure craft, military vessels, offshore platforms, and marine research. Each has specific requirements.

02 · Marine customers

Marine customers we serve.

Commercial shipbuilders

Container shipping, bulk carrier, tanker component manufacturing

Naval shipyards

Military vessel manufacturers — defense Tier-2 supply chain

Yacht builders

Luxury yacht manufacturers — premium cosmetic + marine performance

Boat OEMs

Powerboat, sailboat, specialty vessel manufacturers

Offshore platforms

Oil and gas offshore platform operators and fabricators

Subsea equipment

ROV, submarine, subsea mining equipment manufacturers

Marine electronics

Simrad, Garmin Marine, Raymarine electronics manufacturers

Marina hardware

Dock and marina hardware manufacturers

Aquaculture

Fish farming equipment — saltwater resistance critical

Get an instant quote

Send your CAD — we reply with detailed pricing, lead time, and DFM feedback within 4 working hours.

Talk to an engineer

WhatsApp our team directly. Most messages answered within 12 minutes during work hours.

Explore all services

CNC, 3D printing, injection molding, sheet metal, casting, finishing — one quality system, one partner.

FAQ

Saltwater champion — questions

Saltwater corrosion material selection?

For maximum saltwater corrosion resistance: Monel 400/K-500 (best for immersed service), duplex 2205/2507 (great pitting resistance), 316L (general marine, less severe), naval brass C464 (bronze family, good for fittings). Avoid: carbon steel without coating (rusts rapidly), 304 stainless (not seawater-rated), aluminum grades without anodizing (galvanic corrosion with seawater).

Galvanic corrosion concerns?

Marine assemblies often contain multiple metals — galvanic corrosion between dissimilar metals is major concern. Galvanic series: gold/platinum (most noble) → titanium → nickel → stainless → bronze/brass → carbon steel → aluminum → zinc → magnesium (most active). Isolation techniques: dielectric breaks between dissimilar metals, sacrificial anodes, careful material selection. Our DFM review flags potential galvanic issues.

Bronze vs brass for marine?

Bronze: copper + tin alloy. Superior saltwater corrosion resistance, naval standard. Higher cost. Brass: copper + zinc. Good for above-waterline, not ideal for immersed service (zinc leaching = dezincification in saltwater). Naval brass (C464) is brass with tin addition for improved saltwater resistance — middle ground. For immersed fittings: bronze. For above-waterline hardware: naval brass or bronze both acceptable.

Submarine non-magnetic requirements?

Submarine applications often require non-magnetic materials — avoid interference with MAD sensors (magnetic anomaly detection). Non-magnetic options: austenitic 304/316L stainless (non-magnetic in annealed condition), Monel 404 (special non-magnetic grade), beryllium copper, titanium, aluminum. Specify non-magnetic requirement on drawings — affects material selection.

Offshore platform applications?

Offshore platforms (oil and gas): combination of saltwater + H2S + pressure + temperature. Material selection critical. Common: duplex 2205 or 2507 for piping and pressure equipment, Monel K-500 for wellhead + subsea, Inconel 718 for most critical sour service, titanium for ballast tanks in specific applications. Full NACE MR0175 compliance mandatory for sour service.

Lead times for marine programs?

Commercial marine: 4-8 weeks typical. Offshore platform programs: 8-16 weeks with full documentation. Submarine and military marine: 12-24 weeks with security review. Material lead times for specialty marine alloys (Monel K-500, duplex 2507) can be 4-8 weeks — often drives program timeline. Plan 6+ months ahead for complex marine programs.

Keep reading

PifyC

Send a CAD file. Get an engineering-reviewed quote.

No minimum quantity, free DFM feedback from a senior manufacturing engineer, and an NDA signed before file review on request.

Email the RFQ WhatsApp the team How quoting works