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Square tube
Oil and natural gas, water, steam, etc. are transported through pipeline pipes, and fluids are transported through pipeline pipes, including seamless pipes and welded pipes.

Square tube

                     Fluid and gas transport



O.D:  DN 15 - DN 300mm W.T: 2-30mm   1/8”—12” (SCH5S—SCH160、STD、XS、XXS )etc.

Product: ASTM A500, ASTM A558

Seamless & welded Square tube


Product Name


SpecificationGradeDesignation of DiameterWall ThicknessUser



20*20




25*25




30*30




40*40




50*50




60*60




70*70




75*75




80*80




90*90




100*100




120*120




130*130




140*140




150*150




160*160




180*180




200*200




250*250




300*300




350*350




400*400

※   Length:  6 meters,  12 meters fixed length


Packaging: Spray painted, beveled, pipe cap, galvanized steel strip bundled with yellow lifting strap, overall woven bag packaging.

Rectangular Seamless and Welded Pipe


Product Name


SpecificationGradeDesignation of DiameterWall ThicknessUser
Rectangular PipeASTM A500/ASTM A36
20*401.2/1.3/1.5/1.7/1.8/2.0/2.2/2.5/3.0



30*40




25*40




30*50




25*50




30*60




40*60




50*70




40*80




40*50




60*80




50*80




100*40




50*90




60*100




50*100




120*60




100*80




60*90




120*80





160*80




100*150




140*60




140*80




100*180




200*100




200*150




250*150




100*250




250*200




300*200




350*200




350*250




450*250




400*300




400*300




500*200




400*350




400*250




500*250




500*300