Large Diameter Stainless Steel Welded Pipe is designed for large-scale fluid transportation and structural applications, offering excellent corrosion resistance and cost efficiency. It is widely used in water supply systems, oil and gas pipelines, construction structures, and industrial engineering projects.
Material Type :
Stainless SteelOuter Diameter Range :
325mm – 2000mmWall Thickness Range :
3.0mm – 40mmCustomizable :
YesOrder(MOQ) :
2TSpecifications
Large diameter stainless steel welded pipes are manufactured using advanced welding processes such as ERW, SSAW, or LSAW, allowing the production of pipes with large diameters and consistent wall thickness. This makes them a cost-effective alternative to seamless pipes for large-scale applications.
These pipes are typically made from stainless steel grades such as 304 and 316, providing excellent resistance to corrosion, oxidation, and environmental exposure. Their structural stability and durability make them suitable for long-distance and high-volume fluid transportation.
Large diameter stainless steel welded pipes are widely used in water transmission systems, oil and gas pipelines, municipal engineering, construction structures, and industrial facilities, where large flow capacity, durability, and reliable performance are required.
Large diameter stainless steel welded pipe is one of our core strength products. We maintain substantial inventory to ensure rapid delivery and can also customize extra-large diameter seamless pipes according to your specific requirements. Additionally, we provide comprehensive services including spectroscopic analysis, mechanical property testing, pressure testing, and non-destructive testing (NDT).
| Grade | Grade Equivalent | Mechanical Properties | Size Range | Chemical Composition (Typical, %) |
|---|---|---|---|---|
| TP304 | UNS S30400
|
Tensile ≥515 MPa
|
OD 219–2000 mm
|
C≤0.08, Cr 18.0–20.0
|
| TP304L | UNS S30403
|
Tensile ≥485 MPa
|
OD 219–2000 mm
|
C≤0.03, Cr 18.0–20.0
|
| TP316 | UNS S31600
|
Tensile ≥515 MPa
|
OD 219–2000 mm
|
C≤0.08, Cr 16.0–18.5
|
| TP316L | UNS S31603
|
Tensile ≥485 MPa
|
OD 219–2000 mm
|
C≤0.03, Cr 16.0–18.5
|
| TP321 | UNS S32100
|
Tensile ≥515 MPa
|
OD 219–2000 mm
|
C≤0.08, Cr 17.0–19.0
|
| TP347H | UNS S34709
|
Tensile ≥515 MPa
|
OD 219–2000 mm
|
C≤0.08, Cr 17.0–20.0
|
| TP310S | UNS S31008
|
Tensile ≥515 MPa
|
OD 219–2000 mm
|
C≤0.08, Cr 24.0–26.0
|
| 2205 Duplex | UNS S32205
|
Tensile ≥655 MPa
|
OD 219–2000 mm
|
C≤0.03, Cr 22.0–23.0
|
| 2507 Super Duplex | UNS S32750
|
Tensile ≥800 MPa
|
OD 219–2000 mm
|
C≤0.03, Cr 24.0–26.0
|
| 904L | UNS N08904
|
Tensile ≥490 MPa
|
OD 219–2000 mm
|
C≤0.02, Cr 19.0–23.0
|
|
Note: If you do not find a Large Diameter Stainless Steel Welded Pipe that meets your requirements or is suitable for your customer’s project, please contact our manager sales consultant (Email: stsalesman4@stmetal001.com) and send us your specifications and technical parameter files to obtain Customized quotation plan. |
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FAQs
Q: What types and standards of stainless steel do you mainly supply?
A: We mainly supply a wide range of stainless steel products including stainless steel pipes/tubes (seamless and welded), plates, coils, strips, and bars. Common grades include 304/L, 316/L, 321, 310, 410, 430, 2205 (Duplex), and 904L, which are widely used in construction, chemical processing, food equipment, and marine engineering. All stainless steel products comply with international standards such as ASTM, JIS, and EN. We can also provide corresponding material test certificates (MTC) and support customized specifications according to customer project requirements.
Q: Can you provide special specifications or non-standard customization? For example, extra-wide plates or pipes with specific wall thicknesses?
A: Of course. One of our advantages is our flexible customization capabilities. We can provide customized size cutting, special thicknesses, and special surface treatments (such as 2B, BA, No.4 brushed finish, mirror finish) based on your drawings or requirements. Whether it's a small trial order or a large-volume purchase, we can meet your needs.
Q: How do you guarantee the quality and consistency of materials? Do you have quality certifications?
A: Quality is our lifeline. We use direct supply from large steel mills to ensure material traceability. Each shipment comes with a Material Quality Certificate (MTC). We have our own quality control team that conducts random checks on material composition, dimensional tolerances, surface finish, and mechanical properties. Our factory is also ISO 9001:2015 quality management system certified.
Q: What are your delivery times and logistics solutions for overseas customers?
A: For standard-specification in-stock products, we can complete preparation and shipment within 7-14 days. Delivery times for customized products will be determined through negotiation based on the specific process. We have established international logistics partners who can arrange full container load (FCL), less-than-container load (LCL), or air freight according to your needs, and provide various trade terms such as EXW, FOB, CIF, and DDP, with door-to-door service.
Q: As a new customer, how do I begin cooperation? Can you provide samples for testing?
A: The cooperation process is very smooth: 1) You provide specific requirements (brand, specifications, quantity, standards); 2) We provide a quotation and technical advice; 3) After confirmation, we arrange the contract and payment; 4) Production/pickup and quality inspection; 5) Shipment and provision of documentation. We encourage sample testing. For serious customers, we can provide small-size samples to ensure that the materials fully meet your processing and application requirements.
|
Note: If you do not find a Large Diameter Stainless Steel Welded Pipe that meets your requirements or is suitable for your customer’s project, please contact our manager sales consultant (Email: stsalesman4@stmetal001.com) and send us your specifications and technical parameter files to obtain Customized quotation plan. |
Stainless Steel Welded Pipe is manufactured from premium stainless steel strips or plates using advanced welding processes such as ERW, Laser Welding, SSAW, and LSAW. It offers excellent corrosion resistance, precise dimensions, and reliable mechanical strength for industrial and structural applications. Widely used in construction, water supply systems, chemical processing, food processing pipelines, and oil & gas transportation.
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Large Diameter Stainless Steel Welded Pipe is designed for large-scale fluid transportation and structural applications, offering excellent corrosion resistance and cost efficiency. It is widely used in water supply systems, oil and gas pipelines, construction structures, and industrial engineering projects.
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Polished Stainless Steel Welded Pipe is a high-quality pipe with a smooth and refined surface finish, offering excellent corrosion resistance and aesthetic appearance. It is widely used in decorative structures, furniture manufacturing, architectural applications, and industrial equipment.
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Custom Size Stainless Steel Welded Pipe is manufactured according to specific dimensional requirements, offering flexible sizing and reliable performance. It is widely used in construction projects, industrial equipment, pipeline systems, and specialized engineering applications.
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