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Qualification

Kumsoo Connecting manufactures a wide range of highly durable and world class products
with precision in compliance with API, ASTM, JIS, DNV and KS standards.

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Welding Technology

Our products meet more stringent requirement of quality. Meeting the regulation and monitoring and control of welding processes, and the standardized testing of joints are our major aspects of Quality Control.

  • High robustness submerged arc welding wire technology
  • High speed submerged arc flux technology
  • High grade line pipe submerged arc welding technology
  • Welding seam toughening matching technology
  • High grade line pipe submerged arc welding process control technology
Certificate of Patents

The high grade submerged arc welding technology of Kumsoo Connecting is applicable to submerged arc welding of line pipes of X70 steel grade, JIS G 3444, API2W, ASTM/ASMEGR.60,65,70 etc. and is characterized by high welding strength, good tenacity, fine appearance, high welding efficiency, etc.

For the SAW pipe with different steel grades, pipe diameter and wall thickness, sturdy design and different bevel shapes, and the relation of weld line energy with welding seam energy optimize the key process parameters such as welding current, voltage, welding speed, etc., and ensure that steel pipe welding joints obtain good integral performance.

Welded PIPE in Korea

 

SAW Pipe and Fitting

 

LSAW PIPE

 

Large Diameter Weld PIPE

 

API 5L LINE PIPE

 

API 2B PIPE

 

EFW PIPE

 

SAW PIPE

 

SAW PIPE Submerged arc welding pipe

 

SAW PIPE in Korea

 

Korea Diameter Pipes

 

Saw Pipes

 
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