Project Description
Company Overview:
Our company is equipped with nine sets of SAWH (Submerged Arc Welded Helical) spiral welded steel pipe production lines. We have an annual production capacity of 400,000 tons of spiral welded double-sided submerged arc welded steel pipes.
Product Applications:
Our spiral welded steel pipes are widely used in various industries and applications, including:
– Shale gas, petroleum, and natural gas transportation
– Slurry transportation in mining operations
– Water supply and sewage systems
– Heat network renovation projects
– Pile driving
– Bridge construction
– Steel structures
Product Specifications:
– Diameter Range: Ф219.1mm ~ Ф2850mm
– Wall Thickness: 6.3mm ~ 25.4mm
Steel Grades:
1. Pipeline Steel: L245/B ~ L555/X80
2. Carbon Steel: Q235 ~ Q460
Manufacturing Standards:
Our products comply with various national and international standards, including:
– GB/T 9711-2017
– API SPEC 5L (46th Edition)
– GB/T 3091-2015
– SY/T 5037-2018
– Other relevant domestic and international standards for similar products
– Higher standards as required
Key Features and Benefits:
1. Versatility: Suitable for a wide range of applications across multiple industries
2. Large Diameter Capability: Able to produce pipes up to 2850mm in diameter
3. High-Strength Options: Available in high-grade steels up to X80 for pipeline applications
4. Quality Assurance: Manufactured in compliance with stringent international standards
5. Customization: Ability to meet specific project requirements and standards
6. High Production Capacity: Annual output of 400,000 tons ensures ability to meet large-scale project demands
Our SAWH spiral welded steel pipes offer a cost-effective and reliable solution for various infrastructure and industrial projects. With our advanced manufacturing capabilities and adherence to international standards, we can provide high-quality pipes tailored to meet the specific needs of our customers across different sectors.
SAWH spiral welded pipe data
Spiral welding makes one diameter serve a range of pipe sizes by changing the strip width and the forming angle, which is why SAWH is the economical route for large-diameter water, slurry and piling pipe. The spiral seam carries the same test requirement as a longitudinal seam.
| Product | Helical (spiral) double-sided submerged arc welded pipe, SAWH |
| Diameter range | 219.1 mm – 2,850 mm |
| Wall thickness | 6.3 mm – 25.4 mm |
| Length | 6 – 12 m, or to project specification |
| Steel grades | API 5L Gr. B to X70; EN 10217-1 / -2 grades on request |
| Ends | Bevel to API 5L / project spec |
| Testing | 100 % UT or RT on the spiral seam, hydrostatic test, dimensional check |
| Coating | 3PE, 3PP, FBE, epoxy or bare |
| Certificate | EN 10204 3.1; API monogram where the order requires it |
For piling and structural casing the coil grade and the seam test class are usually the only variables; for line pipe, add the PSL 2 requirements and the toughness test temperature at enquiry.