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| Item | Specification |
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| Product Name | Custom Stainless Steel Connection Pipe |
| Product Type | Fabricated Pipe Assembly |
| Materials | Stainless Steel 304, 304L, 316, 316L, Duplex 2205, Carbon Steel (Optional) |
| Manufacturing Process | Laser Cutting + Pipe Forming + TIG Welding + CNC Machining + Surface Finishing |
| Pipe Diameter | Customized |
| Wall Thickness | Customized |
| Connection Type | Flanged, Welded, Threaded, Custom Ends |
| Surface Finish | Pickling, Passivation, Bead Blasting, Polishing |
| Welding Process | TIG, MIG, Orbital Welding |
| OEM / ODM | Available |
| Inspection | PMI, PT, Dimensional Inspection, Pressure Test |
| Applications | Pulp & Paper, Chemical Processing, Food Equipment, Water Treatment, Industrial Machinery |
A stainless steel connection pipe is a fabricated piping component designed to connect equipment, tanks, pumps, valves, or processing systems while maintaining reliable fluid transfer and structural integrity.
Unlike standard catalog pipe fittings, custom connection pipes are manufactured according to project-specific dimensions, connection methods, installation space, and operating conditions. They often combine pipe sections, flanges, reducers, supports, and precision-machined interfaces into one integrated assembly.
These fabricated components are widely used in industrial process systems where standard fittings cannot satisfy layout, pressure, or equipment interface requirements.
Custom fabrication provides greater flexibility than standard off-the-shelf pipe fittings.
Designed to customer drawings
Optimized installation dimensions
Reduced field welding
Improved assembly efficiency
Better leak prevention
High dimensional accuracy
Excellent corrosion resistance
Lower installation costs
Suitable for complex equipment layouts
Available with CNC-machined interfaces
Every connection pipe is manufactured under strict quality control.
Engineering Drawing Review
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Material Certification
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Laser Cutting
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Pipe Cutting & Forming
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Bending (If Required)
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TIG / Orbital Welding
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Weld Cleaning
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Stress Relief (Optional)
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Precision CNC Machining
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Pickling & Passivation
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Pressure Testing
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Dimensional Inspection
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Packaging
Critical flange faces, sealing surfaces, and connection interfaces are precision machined after welding to ensure accurate fit-up and reliable sealing performance.
Typical manufacturing capabilities include:
Pipe Diameter: Customized
Pipe Length: Customized
Wall Thickness: Customized
Connection Standard: ANSI, ASME, DIN, EN, JIS
Weld Type: Butt Weld, Socket Weld, Fillet Weld
Machining Accuracy: According to Drawing
Surface Roughness: Customized
Pressure Test: Available
OEM Manufacturing: Supported
Material selection depends on corrosion resistance, operating pressure, temperature, and process media.
Available materials include:
Stainless Steel 304
Stainless Steel 304L
Stainless Steel 316
Stainless Steel 316L
Duplex Stainless Steel 2205
Super Duplex Stainless Steel
Carbon Steel (Optional)
Grade 316L is commonly selected for chloride-containing or chemical environments because of its improved corrosion resistance compared with 304, while Duplex 2205 provides higher strength together with enhanced resistance to stress corrosion cracking.
MetalKeen combines precision fabrication with CNC machining to produce high-quality stainless steel piping assemblies.
Available processes include:
TIG Welding
MIG/MAG Welding
Orbital Welding
CNC Milling
CNC Turning
Flange Face Machining
Precision Hole Drilling
Thread Machining
This integrated approach improves dimensional consistency and reduces alignment errors during installation.
Surface treatment enhances corrosion resistance, cleanliness, and appearance.
Available finishes include:
Pickling
Passivation
Glass Bead Blasting
Satin Finish
Mirror Polishing
Mechanical Polishing
Electropolishing (Optional)
Pickling and passivation restore the protective chromium oxide layer after welding, helping improve long-term corrosion resistance in stainless steel piping systems.
Custom stainless steel connection pipes are widely used in demanding industrial systems.
Applications include:
Pulp & Paper Equipment
Chemical Processing Plants
Food Processing Equipment
Beverage Production Lines
Pharmaceutical Equipment
Water Treatment Systems
Industrial Pump Skids
Heat Exchanger Systems
Pressure Piping Assemblies
Industrial Automation Equipment
Energy Equipment
Marine Engineering
| Custom Fabricated Connection Pipe | Standard Pipe Fitting |
| Designed for project-specific layouts | Standard dimensions only |
| Multiple components integrated | Single fitting |
| Higher installation accuracy | Additional field assembly required |
| Reduced welding on site | More installation work |
| CNC-machined sealing surfaces | Standard machined surfaces |
| Ideal for OEM equipment | Best for general piping systems |
Custom fabricated connection pipes are often preferred for OEM equipment and process plants because they simplify installation, improve fit-up accuracy, and reduce field fabrication time.
Every fabricated pipe assembly undergoes comprehensive inspection before shipment.
Inspection includes:
Material Certification (EN 10204 3.1 Available)
PMI (Positive Material Identification)
Weld Visual Inspection
Dye Penetrant Testing (PT)
Dimensional Inspection
Flange Face Flatness Measurement
Pressure or Leak Testing (Optional)
Surface Finish Inspection
Packaging Inspection
Inspection reports can be supplied according to customer requirements.
A stainless steel connection pipe is a custom-fabricated piping component that connects equipment, tanks, pumps, or processing systems while ensuring reliable flow, structural integrity, and accurate installation.
304 is suitable for general industrial applications, while 316L is recommended for corrosive environments containing chlorides or aggressive chemicals. Duplex 2205 is often selected for applications requiring both higher strength and improved corrosion resistance.
Yes. We provide complete OEM fabrication and CNC machining services based on customer drawings, 3D CAD models, or samples.
We offer TIG, MIG/MAG, and orbital welding, with precision CNC machining performed after welding when required.
Pulp and paper, food processing, pharmaceuticals, chemical plants, water treatment, marine engineering, industrial automation, and energy equipment.
We provide PMI, dimensional inspection, weld visual inspection, dye penetrant testing, pressure testing (optional), and full material traceability.
Looking for a reliable manufacturer of custom stainless steel connection pipes and fabricated piping assemblies?
MetalKeen provides complete engineering support from material selection and pipe fabrication to certified welding, CNC machining, surface finishing, inspection, and global delivery. Whether you need a single prototype or large-scale OEM production, our team can manufacture custom piping components according to your drawings, pressure requirements, and industry standards.
Send us your CAD drawings, piping layouts, or technical specifications today to receive a fast quotation and professional engineering support.
