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Product description
Type | spiral submerged arc welded steel pipe |
Specification | 1.Out diameter:219-4046mm 3.Length:Max 12m 4.We can also produce according to customersrequirement |
Material | Q235A,Q23b,0Cr13,1Cr17,00Cr19Ni11,1Cr18Ni9,0Cr18Ni11Nb. Q345 L245 L290 X42 X46 X70 X80
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Standards | Spiral pipe production process of spiral steel pipe now commonly used criteria are divided into: 1.SY/T5037,2000 (solid, also known as the common fluid conveying pipe with spiral seam submerged arc welding steel pipe), 2.GB/T9711.1,1997 (national standard, also known as oil and gas industry conveying pipe delivery technical conditions in the first part: grade A steel pipe), 3.API 5 l (American petroleum institute, also called pipeline steel pipe), 4.SY/T5040-92 (with spiral seam submerged arc welding steel pipe pile)
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Process Method | Spiral steel pipes in strip steel coil plate for raw materials, often warm extrusion molding, with automatic double wire welding double-sided submerged arc welding process of spiral seam pipe. (1) the raw material is steel strip coil, wire, flux. Go through strict physical and chemical inspection before input. (2) the head and tail docking, strip using single or double wire submerged arc welding, after rolled steel pipe by automatic submerged arc welding repair welding. (3) the prior to molding, strip after flattening, cutting edge, edge planing, transmission and cleaning the surface to the flanging process. On both sides of the conveyor (4) USES the electric contact pressure gauge control pressure of cylinder under pressure, ensure the smooth delivery of strip steel. (5) the use of external control or internal control roll forming. (6) the weld gap control device to ensure that the weld gap meets the demand of welding, pipe diameter, and quantity of the wrong side of weld gap are tightly controlled. (7) welding and welding are used within the United States Lincoln welding machine for single or double wire submerged arc welding, to obtain the stability of the welding specification. (8) after welding the weld passes the online continuous ultrasonic automatic meter check, ensure the spiral weld nondestructive testing coverage of 100%. If there are defects, automatic alarm and spray tags, production workers to adjust process parameters, in a timely manner to eliminate defects. |
Certificates | 1.Environmental Management System Certificate 2.The People's Republic of China Special Equipment Certification 3.Quality Systerm Certificate 4.API 5.ISO 6.Other certificates |
Face finished | 1.Manual polished 2.mechanical polished 3.black paint on the face 4.anti-rust oil and caps on both ends 5.galvanized |
Usage Range | water engineering, petrochemical industry, chemical industry, power industry, agricultural irrigation, urban construction.For liquid transportation, water supply, water drainage, sewage treatment engineering, transmission mud, sea water. For gas transmission, gas, steam, liquefied petroleum gas. For structure: do the piling pipe, bridge; Dock, road, building structure pipe, Marine piling pipe, etc |
packing | seaworthy package,Plywood Cases or pallet or as per customers requirement |
Delivery Time | At the earliest ,within the period required by customer |
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