Marine Sheet Metal Fabrication in China
We support boat, ship, and offshore projects with
custom metal parts. We are a China-based company offering custom marine metal parts manufacturing services
to customers worldwide. Our team has experience in making parts that withstand ocean conditions. We cut,
form, weld, and finish sheet metal to create things like panels, brackets, and enclosures for marine use.
These parts are shipped carefully and engineered to resist sea water and weather.
Our factory can handle large assemblies and complex fabrications. We ensure each piece meets the design and
corrosion requirements of maritime clients.
Why Marine Environments Require Specialized Metal Parts
Sea water and weather are very tough on metal parts. Salt spray and humidity speed up rust and corrosion dramatically. In fact, “rust multiplies in saltwater at an alarming rate”. Saltwater breaks down the metal’s protective layer, so metal corrodes much faster than on land. Corrosion is a serious problem for metals near saltwater. Stainless steel and aluminum are often chosen because they resist rust. Ordinary steel parts would quickly weaken and fail if not protected. That is why marine sheet metal parts must be built from the right materials and with protective finishes. We design parts to be durable in the marine environment so your equipment stays safe and reliable.
Materials for Marine Use
All materials are inspected and certified. We choose the suitable option so your parts can handle the
saltwater, humidity, and sun exposure that marine equipment sees every day.
We use metals specifically chosen for marine conditions (see our Materials page for more). Common materials
include:
Stainless Steel
Grades like 304 and 316 are used extensively. Stainless resists rust because it has chromium in its makeup. In fact, “grade 316—sometimes called marine grade stainless steel”—is often used in docks and ships. It has added molybdenum to withstand saltwater better. We select the right stainless grade so parts stay strong for years.
Marine Aluminum
Alloys such as 5052, 5083, and 6061 are used for lightweight parts. Aluminum does not rust; it naturally forms a protective oxide layer. High-magnesium marine-grade aluminum is even better at resisting corrosion. This makes aluminum ideal for hull panels, decks, and lightweight structures on boats.
Coated Carbon Steel
Standard steel is very strong but will rust in saltwater if bare. For steel parts, we use coatings or galvanizing. Galvanizing applies a zinc coating to steel, which helps protect it from corrosion. Powder coating or epoxy paint also adds a protective finish. Coated steel parts are a cost-effective option when strength is needed.
Other Alloys
In some cases, we use bronze, copper-nickel, or specialty alloys for unique marine needs (like propeller parts or oil rig components). These alloys resist saltwater very well, but are less common for sheet metal.
Fabrication Processes
Sheet metal fabrication is the process of transforming flat metal sheets into useful shapes. We use a full range of processes: cutting, forming, joining, and finishing. For cutting, we use laser, plasma, and waterjet machines to make precise shapes. Laser and plasma cutting yield clean edges on steel and aluminum plate. After cutting, parts are shaped with press brakes, rolls, and stamping machines.
We use presses and dies to bend or stamp sheet metal into brackets, flanges, and panels for marine applications.
We also use CNC laser cutters and shearing machines. These tools can cut holes, slots, and complex patterns needed for vents, filter panels, and brackets.
Laser cutting provides very fine precision for thin and medium-thickness parts. It can cut stainless steel or aluminum into detailed shapes for equipment panels and enclosures.
After forming, we join pieces by welding or fastening. Welding provides strong, leak-tight joints. We offer MIG, TIG, and spot welding. TIG welding is often used for high-quality welds on stainless and aluminum.
Proper welding keeps marine parts solid under stress. Our welders are certified and can work with all common
marine metals.
Once parts are made, we finish their surfaces. We grind or polish welds smooth. Then we
apply protective finishes: powder coating, epoxy painting, anodizing (for aluminum), or additional plating. For
example, powder coating adds a durable colored finish that seals out salt and moisture. Anodizing aluminum
creates a hard oxide layer that resists corrosion. These surface treatments help parts last longer at sea. (See
our Surface Finishing pages for details.)
Marine Applications Served
Our marine sheet metal parts go into many types of vessels and equipment:
Boats and Ships
We supply parts for commercial boats (fishing boats, ferries, cargo ships) and pleasure yachts. Common components include cabin panels, railings, engine mounts, and hull fittings.
Offshore Platforms and Rigs
We serve the oil & gas and energy sectors with parts for offshore oil platforms, wind turbines, and drilling rigs. These include large structural supports, deck panels, and equipment housings designed for open-sea use.
Harbor and Port Equipment
We make components for port machinery, docks, and cranes. For example, metal bases and covers for crane controls or custom racks for dockside electronics.
Marine Electronics and Control Systems
Our enclosures and control cabinets protect navigation and communications equipment. From GPS housings to underwater sensor cases, we build the metal shells that keep electronics safe on board.
In each case, parts are made to marine industry standards. Our customers include shipyards, boat manufacturers, offshore service companies, and marine equipment suppliers around the world. (See our related industry pages: Aerospace, Industrial, Oil & Gas, and more.)
Quality and Compliance
Quality is critical in maritime fabrication. We follow a strict quality management system (ISO 9001:2015
certified) to ensure every part meets requirements. This means we have documented processes for inspection,
testing, and continuous improvement. All parts are inspected at key steps, and we perform tests like salt
spray or humidity tests when needed.
In summary, our ISO-certified system and industry-standard practices give you confidence that parts will
perform in harsh marine service.
Working With Us
When you work with us, you get support at every stage. Send us your drawings or CAD files, and we will
review the design for manufacturability. We can help you choose the right metal and finish for your marine
application. Request a quote (RFQ) by email or through our website – we respond quickly with pricing and
feedback.
Once approved, we move your job into production. We handle everything from sourcing raw metal, to
fabrication, finishing, and assembly. Each order is managed by our project team who keeps you updated on
progress. We can work with both one-off prototypes and large production runs.
Finally, we pack the finished parts for safe transport. We arrange worldwide shipping from our China
facility, with protective packaging and documentation. You will receive the parts ready to install on your
vessel or project. We strive to make the process smooth so you get quality parts.
If you have questions or special requirements, our engineers and sales team are here to help. We value clear
communication and will guide you through each step
Ready to Get Started?
If you need marine-grade sheet metal fabrication, contact us today. We have the experience and capacity to deliver the custom, corrosion-resistant parts you need for boats, ships, offshore rigs, and more. Request a quote or send us a drawing now. Our goal is to provide reliable marine sheet metal solutions with top quality and service. Let us partner with you to build the parts that keep your marine projects running safely and smoothly.
