Big Bore Pipe Welding
Energy Production Pipe Welding
Machinery Pipe Welding

Big Bore Pipe Welding

The general caliber of LSAW pipe above 325 is called large diameter welded pipe. Large diameter thick-walled LSAW pipe welding process for double-sided submerged arc welding technology, can also be manually welded after the steel pipe molding, the general test method used for the detection of injuries, the detection of injuries can be qualified to leave the factory.

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Product Introduction

Large-scale factory production

Products Description

Large-diameter thick-walled straight seam welded pipe is generally suitable for fluid-liquid transportation, steel structure support, piling, widely used in petrochemical industry, construction, water supply engineering, electric power industry, agricultural irrigation, urban construction and so on. Steel pipe should be able to withstand a certain internal pressure, if necessary, 2.5Mpa pressure test, keep one minute without leakage. It is allowed to use the method of eddy current flaw detection instead of hydrostatic test. The main ways of molding are UOE, RBE, JCOE, etc., among which JCOE has the highest usage rate. It is also possible to turn the end of the pipe again according to the customer's requirements, which is also called with thread and without thread.

Industry Benchmark

welding pipe Factory Price

specification

OUT DIAMETER	1/4’’-24’’
WALL THICKNESS	2MM-100MM
LENGTH	Random Length, Fixed Length, SRL,DRL
SURFACE TREAMENT	Oil Varnish, black anti-rust paint, hot-dip galvanized,3PE,2PP,2PE,FBE,etc
STEEL GRADE	ASTM A 53,ASTM A519,ASTM A519,GB/T8162,GB/T8162
PACKING	Sea package,woven bags, plastic end,in bundled with lifting belts
END DESIGN	Beveled,Plain,Threaded with coupling,Grooved,Square cutted
SURFACE	Fusion bond Epoxy coating, Coal Tar Epoxy, 3PE, Vanish Coating, Bitumen Coating, Black Oil coating as per customer’s requirement
USAGE	Applicable to the general structure, mechanical structure with seamless steel tubes
Test	Chemical Component Analysis, Mechanical Properties (Tensile strength, Yield strength, Elongation), Technical Properties (Flattening Test, Flaring Test, Bending Test, Hardness Test, Blow Test, Charpy Impact Test etc), Dimension Inspection

Tested product quality

Efficient production pipe

Natural Gas welding pipe

Pre-shipment inspection

To ensure that welded pipes comply with quality standards, safety regulations and application-specific requirements, it is vital that they are inspected prior to shipment. The inspection process will vary depending on the type of welded pipe and current industry standards. Below is a list of our inspection programs for welded pipe prior to shipment:

Dimensional Inspection:
Check the outside diameter (OD) and wall thickness of the pipe to ensure they meet the specified tolerances.
Measure the length of the pipe to ensure it is within the acceptable range.
Verify that the pipe's end bevels or ends are cut correctly, as per the requirements.

All of our welded pipes can be treated with black paint, 3PE, 3PP, galvanized, etc. If you need, please contact us immediately!

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Seam Pipe

Welded Tubes