Cangzhou Spiral Steel Pipes Group Co.,Ltd.

The latest price reference: spiral pipe price list

Production Technology of Spiral Steel Tube with Double Sided Submerged Arc Welding

Inspection of raw materials - Uncoiling - First flat - Cut to butt welding - Finishing - Milling - Delivery - Molding inside and outside welding - Welding slag clearance External inspection - Automatic repair welding, X-ray inspection, filming and Manual ultrasonic re-inspection - pipe end groove machining - hydrostatic pressure test - automatic length measurement weighing - spray signs - the final inspection - storage

Double - sided submerged arc welded steel pipe implementation of standards

SY / T5037-2008 (Ministry superscript, also known as ordinary fluid pipeline with spiral submerged arc welded pipe)

GB / T9711.1-2008 (GB, also known as the oil and gas industry delivery of steel pipe delivery technical conditions Part I: A grade steel pipe (strict requirements are GB / T9711.2 B grade steel pipe)), API-5L (American Petroleum Institute , Also known as pipeline steel pipe; which is divided into PSL1 and PSL2 two levels), SY / T5040-2008 (spiral welded steel pipe pile)

Double - sided submerged arc welding spiral pipe material

Q235A, Q235B, 10 #, 20 #, Q345 (16Mn),

(X60), L450 (X65), L485 (X70), L555 (X80), L905 (B), L290 (X42), L320 (X46), L360

L290NB / MB (X42N / M), L360NB / MB (X52N / M), L390NB / MB (X56N / M), L415NB / MB (X60N / M), L450MB (X65), L485MB (X70), L555MB (X80) .

Application of double - side submerged - arc spiral

Double-sided submerged arc welding spiral pipe is mainly used in water supply engineering, petrochemical industry, chemical industry, power industry, agricultural irrigation, urban construction

For liquid delivery with: water supply, drainage. For gas transportation with: gas, steam, liquefied petroleum gas. For structural use: for piling, as a bridge; terminals, roads, buildings and other structures.