LSAW vs. SSAW Manufacturing: When LSAW Pipes Are Irreplaceable
In the realm of global large-scale infrastructure—including oil and gas transmission, offshore engineering, and water conservancy projects—submerged arc welded steel pipes serve as...
Premier LSAW Steel Pipe Manufacturer in China
High-Performance LSAW Steel Pipes (JCOE) for Oil & Gas
ALLLAND specializes in manufacturing large-diameter Longitudinal Submerged Arc Welded (LSAW) pipes using advanced JCOE technology. Certified to API 5L and international standards, our pipes deliver exceptional strength and reliability for high-pressure transmission and offshore projects.
OUR PRODUCTS
Alllandpipes LSAW Pipes: Precision-Crafted for Unmatched Reliability.
PRODUCTION LINE
Where Excellence is Forged: Inside Alllandpipes’ State-of-the-Art LSAW Pipe Mill.
Step 1
Board inspection
Step 2
Cutting and blanking
Step 3
Edge Milling
Step 4
Pre-bending
Step 5
forming
Step 6
Seam pre-welding
Step 7
Internal welding
Step 8
External welding
Step 9
finishing
Step 10
straighten
Step 11
Online ultrasonic flaw detection
Step 12
Expansion
Step 13
water pressure test
Step 14
Portable Ultrasonic Flaw Detector
Step 15
X-ray flaw detection
Step 16
chamfer
Step 17
Degaussing
APPLICATION AREAS
Powering Critical Infrastructure Worldwide: Alllandpipes LSAW Solutions.
ABOUT ALLLAND
Hebei Allland Steel Pipe Manufacturing Co., Ltd., a National High-Tech Enterprise headquartered in China’s “Pipe Equipment Capital” Cangzhou, Hebei Province, specializes in R&D and production of thick-walled, large-diameter double-sided submerged arc welded longitudinal pipes. Spanning 220,000 m² with RMB 700 million invested, our intelligent manufacturing complex features 2 JCOE production lines and 5 anti-corrosion coating lines, achieving annual outputs of 200,000 tons of premium steel pipes and 4 million m² of protective coatings.
- sales@alllandpipes.com
- +86 22 8279 9516
- +86 195 2338 1749
"Alllandpipes Proviede Awesome Steel Pipes,deliver exceptional products"
OUR PARTNERS
Partnering for Excellence: Building the Future of Pipeline Projects with Alllandpipes.
LATEST NEWS
Alllandpipes News: Driving Innovation and Excellence in LSAW Pipe Solutions.
Meet Allland Steel Pipe at OGU 2026 in Tashkent, Uzbekistan
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Maximizing the Lifespan of SSAW Water Pipes with 3LPE, 3LPP, and FBE Coatings
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Top 10 SSAW Steel Pipe Manufacturers in 2026: A Global Buyer’s Guide
1. Introduction SSAW steel pipe is a cornerstone of global infrastructure and plays an irreplaceable role in key fields such as water conservancy, offshore...
CONTACT ALLLAND
Your Partner for Excellence: Connect with Alllandpipes Today.
Hebei Allland Steel Pipe Manufacturing Co., Ltd.
Zhifangtou Industrial Park, Cangzhou City, Hebei Province
Hebei Allland Steel Pipe Manufacturing Co., Ltd.
- Zhifangtou Industrial Park, Cangzhou City, Hebei Province
- sales@alllandpipes.com
- +86 22 8279 9516 / +86 195 2338 1749