Marine & Shipbuilding
Marine & Shipbuilding
Corrosion-Resistant Piping, Marine-Grade Valves & Specialty Flanges for Shipbuilding & Vessel Repair
Metropolitan Pipe supplies the marine and shipbuilding industry with corrosion-resistant piping, specialty flanges, and marine-grade valves engineered to withstand the harshest saltwater environments. From new vessel construction to repair and overhaul, we provide high-quality domestic and compliant materials that meet the rigorous standards of marine engineering. We stock both standard and non-standard products to support complex marine piping systems.
Proud to Serve the U.S. Navy
Find Metropolitan Pipe products installed on America's submarines and ships. We are honored to supply materials that help protect our nation, and we take that responsibility seriously with full traceability, compliance documentation, and unwavering quality standards.
Marine Applications We Support
- New Vessel Construction: Complete piping packages for shipbuilding programs — from keel to commissioning
- Vessel Repair & Overhaul: Replacement pipe, fittings, valves, and flanges for scheduled and emergency repairs
- Marine Engineering: Support for naval architects and marine engineers specifying piping systems
- Submarine & Surface Ship Programs: Mil-spec compliant materials with full traceability
- Commercial Shipping & Fishing Vessels: Durable, corrosion-resistant materials for working boats
Marine Supply Capabilities
- ✓ Corrosion-Resistant Piping — copper-nickel, stainless, bronze, Monel
- ✓ Specialty Flanges — ANSI, DIN, military, and custom configurations
- ✓ Marine-Grade Valves — bronze, stainless, and specialty alloy in all configurations
- ✓ Domestic & Compliant Materials — Buy American, Berry Amendment, mil-spec
- ✓ Standard & Non-Standard Products — unusual sizes, schedules, and alloys
- ✓ Full Material Traceability — mill certs, test reports, compliance documentation
Products for Marine & Shipbuilding
- Copper-nickel pipe & fittings (90/10, 70/30)
- Stainless steel pipe & tubing
- Bronze valves & fittings
- Monel & Inconel specialty alloys
- Carbon steel pipe to naval specs
- Specialty flanges & gasket sets
- Sea chest strainers & components
- Fire main system components
- Sanitary & potable water system materials
- Steam & condensate system products
Quality & Compliance
Marine and naval applications demand uncompromising quality. Metropolitan Pipe maintains rigorous quality management systems, including AS 9100 aerospace-certified product sourcing, and provides full material traceability with mill certifications and test reports for every shipment. We understand Buy American requirements, Berry Amendment compliance, and military specifications — and we ensure every order meets the required standards.
Your Marine Piping Partner
From submarines to commercial vessels, Metropolitan Pipe delivers the marine-grade materials and documentation your projects demand.