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The difference between different specifications of straight seam steel pipe

There are many types of steel pipes, which can be divided into straight seam steel pipes and spiral steel pipes according to the welding method. Because the two steel pipes have different welding methods, the performance is also different.

Three production processes of welded pipe

This time we mainly introduce welded steel pipe, that is, welded steel pipe. Its production is to bend the tube blank (steel plate and steel strip) into the required cross-section shape and size tube by various forming methods, and then weld the weld by different welding methods to get the steel pipe.

The influence of welded pipe blank width consumption

Welded pipe blank is the raw material for manufacturing welded pipe. Its mechanical properties and chemical composition have a far-reaching impact on the quality of welded pipe. Its width is an important factor to determine the weld strength. We usually say that the appropriate width of welded pipe blank refers to the width of a given thickness. The determination of the width is restricted by many factors.

Advantages of tube truss

In recent years, various forms of steel structures have been widely used in large space buildings such as stadiums, airports, stations, equipment production lines, convention and exhibition centers, and theaters. The tube truss structure is a part of the steel structure and is used extensively.

What is the deformation of seamless steel pipe when it is drawn?

After air drawing, the surface area of the outer surface of the seamless steel pipe increases, and the surface area of the inner surface decreases, and a neutral layer is required between the inner and outer layers.

Technical conditions of steel pipes for different purposes

Generally, according to the different uses and working conditions of the steel pipe, different technical conditions should be proposed for the allowable deviation of the steel pipe size, surface quality, chemical composition, mechanical properties, process performance and other special properties.

Submerged arc welding process and performance of Q345B seamless steel pipe

When using submerged arc welding to weld Q345B seamless steel pipes, in addition to the correct selection of flux, welding wire and electrode, it is also necessary to clean up the surface of the workpiece before welding, such as oil rust and moisture, and strictly control the drying temperature and time of the flux and electrode.

Introduction of 3PE anticorrosive steel pipe spiral welded steel pipe

The main equipment of 3PE anti-corrosion steel pipe: steel pipe buffer platform, pipe transfer unit, tractor, pipe-piercing machinery, high-pressure gun generator, repair platform, transmission line, steel pipe preheating furnace, shot blasting machine main engine inspection platform and branch steel pipe return transmission Line, fast-forward roller set, fast-out roller, maintenance platform, etc.

What is the wear resistance of 16Mn seamless steel pipe?

The role of 16Mn seamless steel pipes is becoming stronger and stronger. Many manufacturers are producing 16Mn seamless steel pipes.

What problems should be paid attention to when welding 16Mn seamless steel pipes?

The process of 16Mn seamless steel pipe processing is a more important step, and in many cases it is a series of complete steps. Because 16Mn seamless steel pipe is a useful type of steel, there are many production technologies that we need to master. One of the more important technologies is welding, because electric welding is indeed a difficult technical activity.

What are the test methods and procedures for flattening seamless steel pipes?

The flattening performance test of seamless steel pipe plays an important role in the hardness, melting point, corrosion resistance and pressure of seamless steel pipe.

How to connect two seamless steel pipes?

There are many ways to connect two seamless steel pipes together, but generally speaking, there are two major ways: one is detachable connection, the other is non detachable connection.

What are the advantages of using longitudinally welded pipes to transport fluids?

At present, the proportion of oil and gas transported by longitudinally welded pipes in the world is increasing, accounting for about 75%-95% of the total oil and gas. The scope of transportation is gradually expanding, not only petroleum and natural gas, but also various chemical industries.

Research and development of Chinese standard and American ASTM standard cryogenic seamless pipe

Low-temperature seamless steel pipes are mainly used in the production of ethylene, propylene, urea, synthetic ammonia, compound fertilizers, and other process equipment such as washing, purification, desulfurization, and degreasing in the pharmaceutical industry, as well as cryogenic equipment manufacturing, ultra-low temperature cold storage, and ultra-low temperature liquefaction.

The role of thermal insulation steel pipes in converting coal to electricity

Coal-to-electricity conversion refers to the conversion of coal-fueled boilers and other tools used for heating to electric heating. Under current environmental protection requirements, it can only be changed to clean energy. Coal-to-clean energy accounts for about 80% of the share , It is widely used because of fast electric transmission and fast heating.

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