EQUIPMENT

November 21, 2018

A333 GR.6 ALLOY PIPE – CERTIFICATE OF INSPECTION

A333 Gr6 PIPE CERTIFICATE OF INSPECTION -BAOTOU
November 19, 2018

seamless steel tube,seamless steel pipe

The seamless steel tube is rolled by a solid tube blank after perforation. 1. Manufacturing method According to different production methods, it can be divided into hot rolled pipe, cold rolled pipe, cold drawn pipe and extruded pipe. 1.1. Hot-rolled seamless pipes are generally produced on automatic rolling mills. The solid tube blank is inspected and the surface defects are removed, cut into the required length, centered on the end face of the perforated end of the tube blank, then sent to a heating furnace for heating and perforated on the punching machine. At the same time, the perforation is […]
October 28, 2018
API 5CT N80-Q Seamless Casing Steel Pipes

How is seamless steel pipe produced?

Hot rolling seamless pipe production process: 1. Introduction to seamless steel pipe The seamless steel pipe is a circular, square, rectangular steel with a hollow section and no seams around it. The seamless steel pipe is formed by perforating a steel ingot or a solid tube blank, and then hot rolled, cold rolled or cold drawn. The seamless steel pipe has a hollow section and is used as a pipe for conveying fluid. Compared with a solid steel such as round steel, the steel pipe has a lighter weight when it has the same bending and torsional strength, and is an economical […]
June 3, 2018

Large diameter welded pipe main production process description:

1. Prospecting: After the steel plate used for manufacturing large-diameter submerged arc welded straight seam steel pipes enters the production line, a full-plate ultrasonic inspection is first performed; 2. Milling: Double-sided milling of the two edges of the steel plate by the edge milling machine to achieve the required plate width, plate edge parallelism and groove shape; 3. Pre-crimping: Pre-bending machine is used to pre-bend the edge so that the edge of the board has a curvature that meets the requirements; 4. Forming: In the JCO molding machine, first half of the pre-bent steel plate is punched several times and […]
May 23, 2018
insulation steel pipe

Steel Pipe With Heat Insulation | polyurethane thermal insulation steel pipe

Insulation steel pipes are widely used in liquid and gas transmission pipe networks, chemical pipe insulation projects in petroleum, chemical, central heating and heating networks, central air-conditioning ventilation pipes, and municipal engineering. High-temperature prefabricated direct-buried thermal Insulation steel pipe is a direct-buried prefabricated thermal Insulation steel pipe with good thermal insulation performance, safety and reliability, and low construction cost. Specification 1.The pre-insulated steel pipe coated with high density polyurethane foam can resistant the temperature up to 140°c. 2.With the corrosion resistant hdpe jacket pipe can make the pipe directly buried underground without trench. 3.Different size pipe and pipe fittings can […]
January 21, 2018

ERW ,Spiral weld Pipe Definition and Manufacturing Process

Spiral steel pipe& Welded Pipe Manufacturing Process Spiral steel pipe & Welded Pipe is the primary manufacturing process for steel thicknesses that exceed spiral mill capabilities (greater than 1”). ERW AND SPRAL STEEL PIPE Definition Electric resistance weld (ERW) pipe Definition :  is normally produced in sizes from 2-³∕₈” OD thru 24” OD.ERW is produced from individual sheets or continuously from rolls of skelp. There are two important differences in the production of ERW pipe versus CW pipe. ERW pipe is cold formed into a cylindrical shape rather than hot formed. An electric current rather than a flame is used to […]
February 27, 2017

Inspection Center

February 27, 2017

SSAW steel pipe production equipment