America’s Complete Shipbuilding Metals Network
One relationship. Materials and manufacturing support for the entire vessel. From structural plate and marine-grade aluminum to corrosion-resistant piping, specialty alloys, and fabricated components, O’Neal Industries connects shipbuilders with capabilities across our family of companies.
WHY O’NEAL INDUSTRIES
Marine & Shipbuilding Metals and Solutions
O’Neal Industries is a global leader in metals distribution, processing, and manufacturing, supporting the marine and shipbuilding industry with dependable materials, responsive service, and deep technical expertise. As the parent company of the nation’s largest family-owned group of metals service centers and manufacturing businesses, ONI brings more than 100 years of experience to naval, commercial, and specialty marine applications.
From structural steel and plate to corrosion-resistant alloys and precision-engineered components, O’Neal Industries and its operating companies deliver the materials shipyards rely on to meet demanding performance, safety, and regulatory requirements..
100+ years of metals experience
Specialized companies connected through one network.
Vessel-wide support materials, processing and manufacturing
What We Supply
Metals and Components for Vessel-Wide Applications
From hull structures and superstructures to piping, propulsion systems, access platforms and equipment assemblies, our companies support critical marine applications.
⛴️ Hulls, Decks & Structural Frameworks
Heavy plate, sheet and structural products for hull construction, framing, decks, bulkheads and equipment foundations.
ABS Plate HSLA Alloy Steel Leeco Steel O’Neal Steel O’Neal Mfg Services❄️ Marine Aluminum & Lightweight Structures
Marine-grade plate, sheet, pipe, tube and extrusions for lightweight hulls, superstructures, deckhouses and access systems.
5083 5086 6061 United Performance Metals TW Metals O’Neal Steel💧 Shipboard Piping & Fluid Systems
Pipe, tube, fittings and flanges for cooling, fuel, hydraulic, exhaust, fire protection and seawater systems.
Stainless Steel Nickel Alloys O’Neal Steel TW Metals STP United Performance Metals🌊 Corrosion-Resistant Marine Systems
Stainless, duplex, nickel and titanium products for saltwater, chemical, heat, pressure and extended-service environments.
316L Duplex Titanium United Performance Metals TW Metals STP Slice of Stainless🛠️ Propulsion, Machinery & Components
High-performance alloys and specialty forms for shafts, valves, pumps, machinery, fasteners and demanding components.
PH Stainless Nickel Alloy Bar United Performance Metals TW Metals STP Slice of Stainless🛡️ Decking, Access & Safety Systems
Grating, floor plate, expanded and perforated metal, structural shapes and components for platforms, stairs and walkways.
Grating Floor PlateShapes O’Neal Steel STP O’Neal Mfg Services⚙️ Fabricated Components & Assemblies
Cut, formed, machined, welded, finished and assembled components for shipyards and marine equipment manufacturers.
Weldments Machining Kitting O’Neal Mfg Services Skilcraft TW Metals O’Neal SteelAdvanced Engineered Components
Advanced manufacturing options for complex components, multi-material structures, embedded functionality and specialized engineering needs.
🔧 Repair, Overhaul & Replacement
Material and processing support for fleet maintenance, vessel repair and difficult-to-source replacement requirements.
MRO Specialty Grades Processing O’Neal Steel TW Metals STPOur Family of Companies
Nine Specialists. One Powerful Network.
Each company brings focused expertise in a material, product form or manufacturing capability. Together, they provide a more flexible source of support.
Fabrisonic
Ultrasonic Additive Manufacturing for complex multi-material components with embedded functionality.
Shipbuilding Roles
→ Advanced components
→ Multi-material structures
→ Specialized engineering
Leeco Steel
Carbon and alloy plate for heavy structural, offshore, marine and high-strength applications.
Shipbuilding Roles
→ ABS and offshore plate
→ Hull and foundation material
→ Cut plate components
O’Neal Manufacturing Services
Fabricated components, weldments, subassemblies and repeat production support.
Shipbuilding Roles
→ Cut and formed parts
→ Machining and welding
→ Kitted assemblies
O’Neal Steel
Carbon, alloy, aluminum and stainless products in plate, sheet, tube, bar and structural forms.
Shipbuilding Roles
→ Structural shapes
→ Marine aluminum
→ Grating and access products
Skilcraft
Precision metal fabrication and assembly for complex, quality-critical programs.
Shipbuilding Roles
→ Sheet metal components
→ Forming and welding
→ Tooling and assemblies
Slice of Stainless
Specialty stainless, nickel alloy and titanium sheet and plate products.
Shipbuilding Roles
→ Sheet and plate
→ Precision blanks
→ Specialty requirements
Stainless Tubular Products
Stainless and nickel alloy tubular products, fittings, flanges, bars and structural forms.
Shipbuilding Roles
→ Pipe, tube and fittings
→ Corrosion-resistant systems
→ Polishing and processing
TW Metals
Stainless, aluminum, nickel, titanium, carbon and alloy products in tubular and flat forms.
Shipbuilding Roles
→ Pipe and tube
→ Marine aluminum
→ Corrosion-resistant alloys
United Performance Metals
Specialty stainless, nickel, titanium, cobalt and alloy products with value-added processing.
Shipbuilding Roles
→ Specialty alloy supply
→ Precision blanks
→ Custom-rerolled strip
National Footprint
Positioned to Support America’s Shipbuilding Industry
O’Neal Industries’ network of metals service centers and manufacturing businesses extends across the United States, placing material, processing capabilities, and specialized expertise closer to the shipyards and suppliers that need them.
From naval construction and commercial vessel programs to fleet maintenance, repair, and overhaul, our companies can coordinate across locations to help customers access the right products and capabilities for each stage of the project.
Local relationships. Nationwide metals and manufacturing support.
Why Shipbuilders Choose ONI
Capability Beyond a Traditional Metals Supplier
A connected network built to support raw material, specialty products, processing and manufactured components.
Industry Experience You Can Trust
Founded in 1921, O’Neal Industries has a long history of supporting critical infrastructure and industrial manufacturing, including significant contributions to U.S. shipbuilding, ship repair, and defense production.
Global Reach with Local Strength
With more than 85 locations worldwide and 66 in the United States, ONI provides the scale and purchasing power of a global organization, paired with the responsiveness and technical support of local teams.
Quality, Compliance, and Reliability
Our operating companies maintain rigorous quality standards and documentation practices to support marine, naval, and defense requirements, helping customers meet specifications, schedules, and regulatory demands.
A Family of Specialized Companies
Each ONI company brings unique expertise in metals, processing, or manufacturing—working together to deliver comprehensive solutions for shipbuilders and marine fabricators.
Who We Serve
Supporting the Full Shipbuilding Supply Chain
Our companies work with organizations throughout the shipbuilding supply chain, providing materials, processing, and manufacturing capabilities for new construction, repair, maintenance, and modernization.
Shipyards & Vessel Builders
Materials and processing support for naval vessels, commercial ships, workboats, barges, ferries, research vessels, patrol craft, and other specialty marine construction.
Ship Repair & Maintenance Facilities
Replacement materials, processed parts, tubular products, and fabricated components for scheduled maintenance, modernization, overhaul, and emergency repair requirements.
Defense Contractors & Government Programs
Metals and manufacturing support for companies serving U.S. Navy, Coast Guard, Military Sealift Command, and other government maritime programs.
Marine Equipment Manufacturers
Material and component support for manufacturers of propulsion systems, pumps, valves, heat exchangers, deck machinery, electrical enclosures, fluid-handling systems, and other shipboard equipment.
Marine Fabricators & Contractors
Plate, sheet, structural products, pipe, tube, specialty alloys, and processing services for fabricators, installers, and subcontractors supporting vessel construction and repair.
Commercial & Specialty Vessel Operators
Support for fleet maintenance, replacement-material needs, vessel upgrades, and long-term repair programs across commercial and specialty marine operations.
Frequently Asked Questions
Shipbuilding Supplier — Common Questions
What shipbuilding materials does O’Neal Industries supply?
Through its family of companies, O’Neal Industries offers a broad range of metals for marine and shipbuilding applications, including carbon and alloy steel, stainless steel, aluminum, nickel alloys, titanium, cobalt alloys, pipe, tube, bar, sheet, plate, coil, and structural products. Product availability varies by company, grade, form, and location. See all products here.
What types of shipbuilding applications can ONI support?
Our companies provide materials and processing capabilities for applications throughout the vessel, including hulls, decks, bulkheads, structural frameworks, superstructures, shipboard piping and fluid systems, propulsion and machinery components, equipment foundations, access and safety systems, and fabricated assemblies.
Does ONI support both naval and commercial shipbuilding?
Yes. O’Neal Industries companies support materials and manufacturing needs associated with naval and defense programs, commercial shipbuilding, workboats, barges, ferries, patrol craft, research vessels, offshore and coastal structures, vessel repair, and other specialty marine applications.
Can ONI support ship repair, maintenance, and modernization projects?
Yes. In addition to new vessel construction, our companies can support maintenance, repair, overhaul, modernization, and replacement-material needs. This may include plate, sheet, pipe, tube, structural products, specialty alloys, processed parts, and fabricated components.
What value-added processing and manufacturing capabilities are available?
Capabilities across the O’Neal Industries network include laser, plasma, oxyfuel, saw, and waterjet cutting; plate and tube processing; forming and rolling; machining; drilling, punching, and notching; welding; finishing; precision blanking; kitting; and assembly. Available services vary by company, material, location, and project requirements.
Can ONI provide materials for corrosion-resistant marine environments?
Yes. Our companies offer stainless steels, duplex stainless steels, nickel alloys, titanium, and other specialty metals used in demanding marine environments. The appropriate material depends on the application, operating environment, required specification, and performance criteria.
Does ONI offer marine-grade aluminum?
Yes. Marine-relevant aluminum offerings include plate, sheet, pipe, tube, bar, extrusions, and structural shapes in a range of alloys. Examples represented within the ONI network include 5052, 5083, 5086, and 6061. Specific tempers, dimensions, certifications, and availability should be confirmed for each inquiry.
Are material certifications and documentation available?
Material test reports, certifications, traceability documentation, and other quality records may be available depending on the material, supplier, specification, and fulfilling company. Include all documentation and certification requirements with your inquiry so the appropriate ONI company can confirm availability.
READY TO GET STARTED?
One Network. Vessel-Wide Support.
Give your team access to materials and capabilities across the O’Neal Industries family of companies. From hull structure and shipboard systems to specialty components and repair needs, we can help identify the right path forward.
✓ 66 U.S. Locations
✓ 9 Specialized Companies
✓ 100+ Years Experience
✓ Traceable, documented supply
✓ MTRs Available on All Orders