I. Brief Version

Thick-Walled LSAW Pipe

Our thick-walled LSAW straight submerged arc welded pipes are fabricated from medium-thick steel plates via forming and double-sided submerged arc welding processes. Available in large outer diameters and customizable dimensions, these pipes withstand working pressure up to 25MPa, featuring compact weld seams, outstanding low-temperature toughness and reliable corrosion resistance. We support flexible sizing and multiple anti-corrosion surface treatments, fit for high-pressure, heavy-load and corrosive working scenarios including long-distance oil & gas transmission and industrial pipeline projects. As direct export factory, we follow international standards, offer tailor-made solutions with full-process standardized service, delivering cost-effective LSAW pipes to global clients.

II. Detailed and Complete Version

Thick-Walled LSAW Pipe | Large Diameter Straight Submerged Arc Welded Steel Pipe

1. Product Manufacturing & Definition

Thick-walled LSAW pipe is large-diameter straight seam submerged arc welded steel tube. It adopts medium-thickness steel plate as raw material, undergoes bending forming and double-sided submerged arc welding molding. The thick-wall variant refers to products with wall thickness exceeding 30 mm, maximum wall thickness reaching 60–120 mm. Our factory strictly implements standardized production in line with international norms, and provides personalized custom service scheme covering the whole order cycle, delivering high-performance, cost-efficient and highly adaptable welded steel pipes for overseas energy and industrial engineering projects.

2. Complete Customizable Technical Parameters

All dimensional indicators support personalized adjustment to match diverse project requirements, precise parameter range as below:

• Outer Diameter: standard range 406mm–1829mm, expandable up to 2000mm
• Wall Thickness: adjustable from 12mm to 100mm, thickness tolerance controlled within ±5%
• Single Pipe Length: standard fixed lengths 6m / 12m / 12.6m, flexible custom length 0.5m–24m
• Dimensional Tolerance: outer diameter tolerance ≤0.1%, guaranteed tight butt joint during on-site installation
• Optional Surface Treatment: pickling, phosphating, sand blasting, external anti-corrosion coating, hot galvanizing, painting etc.; anti-corrosion coating thickness ≥2.5mm

3. Core Product Strengths & Functional Highlights

1. Ultra-high pressure bearing capacity Thick wall structure plus premium base material enables maximum resistant pressure of 25MPa. No deformation or leakage occurs under long-term high-pressure & heavy-load operation, perfectly suited for long-distance high-pressure medium transportation pipelines.
2. Strong anti-corrosion & long service life Multiple mature surface anti-corrosion technologies isolate pipe body from humid, saline-alkali and chemical corrosive surroundings, greatly extending the service cycle of pipelines in harsh working environments.
3. Stable medium delivery performance Smooth inner pipe wall cuts fluid transmission resistance and boosts conveying efficiency. High dimensional precision ensures seamless pipe connection, completely avoiding medium leakage risks.
4. Simple field installation & low maintenance expense The pipes can be rapidly connected by conventional welding or flange assembly methods, shortening construction period. Robust anti-corrosion layers keep stable long-term operation, greatly reducing follow-up maintenance investment.

4. Application Scope & Factory Service Advantages

Application Fields

Widely deployed in long-distance oil & gas transmission trunk lines, large industrial delivery pipelines, heavy load municipal engineering and other harsh working condition projects worldwide.

Our Service Edge

We are a professional export-oriented LSAW pipe manufacturer, integrating quality inspection, customized design, certification support and after-sales logistics into a unified full-process service system. Apart from standard batch orders, we accept personalized parameter adjustment according to project special demands. Every batch of products undergoes strict full inspection before shipment to ensure stable product consistency, helping global purchasers solve one-stop pipeline procurement demands efficiently.

Hot Tags: thick-walled LSAW pipe, LSAW steel pipe manufacturer, factory direct supply large diameter welded pipe, customized anti-corrosion LSAW pipe, wholesale thick wall submerged arc welded tube