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How to identify counterfeit thick-walled seamless steel pipe
1. Fake and inferior thick-walled seamless steel pipes are prone to folding. Folds are various fold lines formed on the surface of thick-walled seamless steel pipes. This defect often runs throughout the longitudinal direction of the product. The reason for folding is that shoddy manufacturers pu...Read more -
Troubleshooting and production technology of straight seam steel pipes
Straight seam steel pipes are steel pipes with welds that are longitudinally parallel to the steel pipe. They are usually divided into metric electric welded steel pipes, electric welded thin-walled pipes, transformer cooling oil pipes, etc. The production process of straight seam welded pipe is ...Read more -
Quality requirements for large diameter thick wall seamless steel pipes
①Chemical composition of steel: The chemical composition of steel is one of the most important factors affecting the performance of seamless steel pipes. It is also the main basis for formulating pipe rolling process parameters and steel pipe heat treatment process parameters. a. Alloying element...Read more -
Steel pipe processing methods
Steel pipe processing and furnace installation: 1. Workpieces that are easily deformed during heat treatment should be heated on a special fixture. 2. The workpiece should be placed in the effective heating zone Warm-up: 1. For workpieces with complex shapes or sharp changes in cross-section and ...Read more -
What are the uses of seamless steel pipes
The difference between seamless steel pipes and other long strips is that there are no seams around them, and the steel pipe section is hollow. Due to different cross-sectional shapes, they are often classified into round steel pipes and heterogeneous steel pipes. In terms of actual use efficienc...Read more -
What is the difference between welded steel pipe and welded spiral steel pipe
Welded steel pipe refers to a steel pipe with seams on the surface, which is made by bending and deforming steel strips or steel plates into circular, square, and other shapes and then welding them. The blank used for welded steel pipes is a steel plate or strip. Since the 1930s, with the rapid d...Read more -
Application of straight seam steel pipes in pressure pipelines
The nominal diameter of straight seam steel pipe refers to the series of diameter dimensions specified in the standard of straight seam steel pipe. For straight seam steel pipes, pipe fittings, valves, etc., the nominal straight seam steel pipe diameter is represented by a series specified in the...Read more -
The difference between thin-walled spiral steel tubes and thick-walled spiral steel tubes
Thin-walled spiral steel pipe concept: The strip steel is fed into the welded pipe unit. After rolling with multiple rollers, the strip steel is gradually rolled up to form a circular tube blank with an opening gap. The reduction amount of the extrusion roller is adjusted to make the weld gap Con...Read more -
Plastic-coated straight seam steel pipe details
Plastic-coated straight seam steel pipe is a high-performance, high-strength steel pipe product that is widely used in various construction, water conservancy, petroleum, chemical industry, electric power, and other fields. It has the advantages of anti-corrosion, waterproof, wear resistance, cor...Read more -
Industrial spiral steel pipe details
Spiral steel pipe production process: It is a spiral seam steel pipe welded by automatic double-wire double-sided submerged arc welding process using strip steel coil plate as raw material, constant temperature extrusion molding. (1) Raw materials, namely strip coils, welding wires, and flux, mus...Read more -
Horizontal fixed argon electric joint welding process for stainless steel pipe butt joints
1. Overview of the horizontal fixed argon electric joint welding process for stainless steel pipe butt joints. Stainless steel pipe butt joints have the characteristics of horizontally fixed tungsten arc welding base, electrode arc welding cover surface, and single-sided welding and double-sided ...Read more -
The difference between hot-dip galvanized steel pipe and cold-dip galvanized steel pipe
Galvanized steel pipes are divided into cold-dip galvanized steel pipes and hot-dip galvanized steel pipes. The former has been banned, and the latter has been advocated by the country to be temporarily used. Hot-dip galvanized steel pipe. Hot-dip galvanizing pipe reacts molten metal with an iron...Read more
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