Product Information
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Eddy’s current non-destructive testing method for a weld seam of spiral steel pipe
Pipeline transportation, as an efficient means of special transportation, has played an increasingly important role in oil and gas transportation and other fields. At present, domestic large-diameter transportation pipelines are mainly constructed of spiral welded steel pipes....Read more -
Identification method of fake and shoddy thick-walled seamless steel pipe
1. Shoddy thick-walled seamless steel pipes are prone to folding. Folding is a variety of fold lines formed on the surface of thick-walled seamless steel pipes, and this defect often runs through the longitudinal direction of the entire product. The reason for the folding is t...Read more -
Improvement of the Stainless Steel Elbow Pressing Process
Stainless steel elbows are widely used in petrochemical, instrumentation, food, and other industries because of their good corrosion resistance. For professional pipe fittings manufacturers, stainless steel elbows are a high-value-added product, and their quality and output di...Read more -
Technical method for deformation detection of oil and gas steel pipelines
First, the development direction of steel pipeline inspection technology. During the operation of long-distance oil and gas steel pipelines, they are usually corroded from both internal and external environments. Internal corrosion is mainly caused by the combined action of th...Read more -
The seamless characteristics of ERW steel pipe
The biggest difference between electric resistance welding (Electric Resistance Welding, ERW for short) and seamless steel pipe is that ERW has a weld seam, which is also the key to the quality of ERW steel pipe. Modern ERW steel pipe production technology and equipment, due t...Read more -
Specifications and uses of oil casing
Application of oil casing: Oil casing is a kind of seamless steel pipe and an important piece of equipment for oil drilling. Its main equipment also includes drill pipe, core pipe and casing, drill collar, and steel pipe for small-diameter drilling. The domestic casing is made...Read more -
Annealing, normalizing, quenching, and tempering of steel pipes
Annealing of steel pipe: Heating the steel pipe to a certain temperature and keeping it warm for some time, and then cooling it slowly is called annealing. The annealing of steel pipe is a heat treatment method in which the steel pipe is heated to the temperature at which phas...Read more -
What are the classifications of spiral steel pipe welded pipes
Welded steel pipe, also known as welded pipe, is a steel pipe made of steel plate or steel strip after crimping and welding. Welded steel pipe has a simple production process, high production efficiency, many varieties and specifications, and less equipment investment, but its...Read more -
Seamless steel pipe for hydraulic cylinder
Seamless steel pipes for hydraulic cylinders are seamless steel pipe products used in hydraulic cylinders. Hydraulic cylinders can be divided into piston cylinders, plunger cylinders, and swing cylinders in the structure. Cylinders can be divided into piston cylinders, film cy...Read more