Minor Diameter Spiral Welded Pipe

Small diameter spiral welded pipes are engineered for precision applications where space is limited but performance is non-negotiable. Our range, which includes Small Size Spiral Welded Pipe, Small Bore Spiral Welded Tube, Small Caliber Spiral Steel Pipe, and Mini Diameter Spiral Welded Pipe, is manufactured using state-of-the-art spiral welding techniques. This process ensures superior structural integrity, excellent pressure-bearing capacity, and uniform wall thickness. These pipes are the ideal solution for intricate fluid transfer systems, compact structural components, and specialized industrial installations where reliability in constrained diameters is paramount. The spiral weld design inherently provides greater strength against circumferential and longitudinal stresses, making these pipes exceptionally durable for their size.
The **Minor Diameter Spiral Welded Pipe** is defined by its rigorous specifications and consistent quality. Below are the key product parameters that define our manufacturing standards and the performance characteristics you can expect. We utilize high-grade steel coils and advanced submerged arc welding (SAW) technology to ensure every weld is robust and leak-proof. Strict quality control protocols, including non-destructive testing (NDT) methods like ultrasonic and radiographic inspection, are implemented at every production stage. **Core Material & Production Standards:**

• Material Grades: Commonly supplied in API 5L Grade B, X42, X52, X60, X65, X70, and ASTM A53, A139, A252. Other grades available upon request.
• Steel Type: Hot-rolled or cold-rolled steel coil, with options for black, galvanized, or coated finishes.
• Welding Process: Automated double-sided Submerged Arc Welding (SAW).
• Key Standards: Manufactured in compliance with API 5L, ASTM A139, ASTM A252, EN 10219, and other international specifications.

• Hydrostatic Test: Every pipe is subjected to hydrostatic testing to ensure it meets or exceeds the specified minimum yield strength (SMYS).
• Non-Destructive Testing (NDT): 100% ultrasonic testing (UT) or radiographic testing (RT) of the weld seam is standard.
• Dimensional Checks: Automated laser gauging for OD, wall thickness, and ovality verification.
• Surface Inspection: Visual and automated inspection to detect surface imperfections.
• Chemical & Mechanical Tests: Mill test certificates (MTC) providing chemical composition and mechanical properties from batch testing.