Agriculture›
Apparel and fashion accessories›
Construction & real estate›💡Electronic & Electrical›🍎Food & Beverages›🛋️Home furnishing & supplies›⚗️Industrial goods & chemical›🪨Minerals & metals›📦Miscellaneous›
Agriculture›
Apparel and fashion accessories›
Construction & real estate›💡Electronic & Electrical›🍎Food & Beverages›🛋️Home furnishing & supplies›⚗️Industrial goods & chemical›🪨Minerals & metals›📦Miscellaneous›

Large-diameter welded pipe is the pipe welds, raw materials are mainly steel sheet and strip, large diameter straight seam welded steel pipe is used, the higher productivity of the kinds of steel, more used in more low-cost steel products one. Large diameter spiral welded steel pipe is used, compared to the straight pipe joints, mechanical strength of the products is relatively high, to save raw materials, but the production is slow. The product is widely used in water engineering, petrochemical industry, chemical industry, power industry, agricultural irrigation, urban construction, is one of the products of China's 20 key development. For the transport of liquids: water supply, drainage. For gas transportation: gas, steam, LPG. For structural purposes: as piling pipe for bridges; piers, roads, pipes and other building structures. In the large-diameter steel pipe welding process, the most commonly used is welded steel pipe, which is mainly used for oil drilling and machinery manufacturing stove pipe can be used as water-gas pipe, large diameter welded pipe for high pressure gas transmission, etc.; spiral welded pipe for oil and gas, piles, piers, etc. seamless steel pipe and welded steel pipe is lower than cost, high production efficiency. Longitudinal simple production technology, high production efficiency, low cost, rapid development. spiral strength than the straight seam welded pipe is generally pipe, can narrow the billet production of large diameter pipe, you can use the same width of the billet production of different pipe diameters, but with a straight seam pipe compared to the same length, the weld length of 30 to 100%. and lower production rate, so the smaller diameter pipe is mostly a straight seam welded, large diameter spiral welded pipe is mostly used. According to different methods can be divided into arc welding pipe, high or low frequency electric resistance welded pipe, gas pipe, stove pipe, Bundy tubes. According weld shape can be divided longitudinally and spirally welded pipe welded steel refers to steel or steel bending round, square, etc. and then welded into shape, the surface of the steel pipe seams welded steel pipe production process simple, high production efficiency, variety specifications, less capital equipment, but generally lower than the intensity of seamless steel tubes. since the 1930s, along with the rapid development of high-quality steel rolling production, and improve the welding and inspection technology, continuous improvement of weld quality, welded steel pipe increasing number of varieties and specifications, and in more and more areas instead of seamless pipe.
| HS Code | 7305.11 |
| Material | Carbon Steel (API 5L Grade X42 to X80) |
| Grade/Type | API 5L Grade B, X42, X52, X60, X65, X70, X80; ASTM A252 Grade 3; ASTM A36 |
| Purity/Composition | Carbon steel with trace amounts of Mn, Si, S, P; controlled carbon equivalent value (CEV) for weldability |
| Size/Dimensions | Outer diameter 406 mm to 2500 mm; Wall thickness 6 mm to 40 mm; Length 6 m to 18 m (single or double random) |
| Standard | API 5L, ASTM A252, ASTM A672, GB/T 9711, ISO 3183, EN 10219 |
| Application | Oil and gas transmission pipelines, water and slurry pipelines, structural piling, offshore platforms, construction infrastructure |
| Packaging | Bundled and secured with steel straps; ends beveled, capped, or coupled; anti-corrosion coating (3PE, FBE, or black varnish) available |
| Origin | China, India, Japan, South Korea, Turkey, EU (varies by mill) |
Large-diameter welded steel pipes are manufactured using LSAW (Longitudinal Submerged Arc Welding) or SSAW (Spiral Submerged Arc Welding) processes, with diameters typically ranging from 16 inches (406mm) to 80 inches (2032mm). These pipes meet API 5L and ISO 3183 standards and are widely used in oil and gas transmission pipelines, water conveyance systems, and structural construction projects. Global trade demand remains strong in Southeast Asia, the Middle East, and Africa, with major sourcing countries including China, India, and Turkey offering competitive FOB pricing for bulk orders.
| Business Type | Supplier |
| Year Established | Recently Joined |
| Employees | Contact Supplier |
| Annual Revenue | Contact Supplier |
| Main Products | View Products Tab |
| Major Markets | Global |
| Response Time | <4h |
| Response Rate | New Supplier |
Large-Diameter Welded Pipe is offered by Threeway Steel Co., Ltd., a Supplier based in China, in wholesale quantities for importers, distributors, and trade buyers. Contact the supplier to request pricing, minimum order quantity, and shipping terms for your destination.
When importing Large-Diameter Welded Pip, confirm trade terms such as FOB or CIF, packaging, and any certification or documentation you need directly with the supplier before placing a bulk order.
Active buying requirements from importers looking for Similar products
Compare alternatives, find similar products and connect with verified suppliers
When sourcing Large-Diameter Welded Pipe for your business, securing the right balance of quality and cost is essential. Threeway Steel Co., Ltd., a verified supplier based in China, offers this product with key specifications including API 5L Grade B, X42, X52, X60, X65, X70, X80; ASTM A252 Grade 3; ASTM A36, Carbon steel with trace amounts of Mn, Si, S, P; controlled carbon equivalent value (CEV) for weldability, and Outer diameter 406 mm to 2500 mm; Wall thickness 6 mm to 40 mm; Length 6 m to 18 m (single or double random). By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $385/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is actively traded under HS Code 7305.11, making it a staple in the Steel Pipes sector with strong demand from importing countries worldwide.
Importing Large-Diameter Welded Pip requires careful attention to shipping logistics, customs compliance, and secure payment terms. Threeway Steel Co., Ltd. offers flexible shipping options such as Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. To ensure a smooth transaction, buyers should verify import duties for HS Code 7305.11 in their destination country. Common payment methods for international B2B transactions include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P). All transactions and RFQs are facilitated through EximNext, a leading global B2B marketplace designed to make cross-border trade secure and efficient.
Finding trustworthy partners is the foundation of successful importing. The supplier of this Large-Diameter Welded Pip has been verified on our platform. Whether you are a distributor, wholesaler, or procurement manager, you can request a free quotation, ask for product samples, and finalize your bulk purchase with confidence. EximNext hosts thousands of verified manufacturers and exporters across 200+ countries. Explore similar products in the Steel Pipes category and connect with top-tier exporters on our comprehensive import export marketplace. Start your sourcing journey today.
Importing Large-Diameter Welded Pip requires careful attention to shipping logistics, customs compliance, and secure payment terms. Common shipping options include Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Buyers should verify import duties for HS Code 7305.11 in their destination country. Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P).
The current listed wholesale price for Large-Diameter Welded Pipe from Threeway Steel Co., Ltd. is $385/Bags on FOB terms from China. Prices may vary depending on order volume, packaging, and destination. For the most accurate bulk quote, send a direct RFQ to Threeway Steel Co., Ltd. through EximNext.
The supplier, Threeway Steel Co., Ltd., has set a Minimum Order Quantity (MOQ) of 1 Bags for Large-Diameter Welded Pip. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
For international shipping and customs clearance, Large-Diameter Welded Pipe is classified under HS Code 7305.11. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
To import Large-Diameter Welded Pip from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Threeway Steel Co., Ltd.. Ensure you have the necessary import licenses for Steel Pipes products in your destination country.
Yes, Threeway Steel Co., Ltd. is a verified supplier on EximNext. You can view their complete company profile, business registration details, certifications, and export history before placing a bulk order.
The key specifications for Large-Diameter Welded Pipe supplied by Threeway Steel Co., Ltd. include API 5L Grade B, X42, X52, X60, X65, X70, X80; ASTM A252 Grade 3; ASTM A36, Carbon steel with trace amounts of Mn, Si, S, P; controlled carbon equivalent value (CEV) for weldability, and Outer diameter 406 mm to 2500 mm; Wall thickness 6 mm to 40 mm; Length 6 m to 18 m (single or double random). For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to the supplier through EximNext.
Threeway Steel Co., Ltd. offers Large-Diameter Welded Pip with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Large-Diameter Welded Pip is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Threeway Steel Co., Ltd. through our platform.
Threeway Steel Co., Ltd. maintains international quality certifications. These ensure that the Large-Diameter Welded Pip meets international quality, safety, and regulatory standards required for cross-border trade.
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Threeway Steel Co., Ltd. will respond with a detailed wholesale quote including FOB pricing, lead time, and payment options.
Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), Documents against Payment (D/P), and Escrow services. Confirm accepted terms directly with Threeway Steel Co., Ltd..
Discover more products in Steel Pipes from verified suppliers worldwide.