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What are the details of thick-walled steel pipes before use

What are the details of thick-walled steel pipes before use

Keywords :What are the details of thick-walled steel pipes before use        Update : 2023-01-06        View(s) : 925

The welding method of thick-walled steel pipes should be selected according to the material and wall thickness of thick-walled steel pipes. Because different welding methods have different arc heat and arc force, different welding methods have different characteristics. For example, tungsten arc...

What are the commonly used materials for the outer anti-corrosion layer of steel pipes

What are the commonly used materials for the outer anti-corrosion layer of steel pipes

Keywords :What are the commonly used materials for the outer anti-corrosion layer of steel pipes        Update : 2023-01-05        View(s) : 864

Commonly used steel pipeline corrosion coatings include traditional petroleum asphalt or asphalt enamel, coal tar and coal tar enamel, polyethylene, and polypropylene tapes. From a technical point of view, these anti-corrosion materials can be used for the prefabrication of the anti-corrosion la...

Tips to identify fake and inferior steel pipes

Tips to identify fake and inferior steel pipes

Keywords :Tips to identify fake and inferior steel pipes        Update : 2023-01-04        View(s) : 824

Shoddy steel pipes are prone to folding. Folding is a variety of fold lines formed on the surface of the steel pipe, and this defect often runs through the longitudinal direction of the entire product. The reason for the folds is that the counterfeit and inferior manufacturers pursue high effici...

What are the heat treatment methods for spiral steel pipes

What are the heat treatment methods for spiral steel pipes

Keywords :What are the heat treatment methods for spiral steel pipes        Update : 2023-01-03        View(s) : 782

1. Thermomechanical treatment High-temperature thermomechanical treatment can improve the yield ratio and elastic limit of spiral steel pipe . Improve the comprehensive mechanical properties, fatigue properties, and stress relaxation properties of the spiral steel pipe. Reducing the ductile-bri...

What problems should be paid attention to when welding galvanized steel pipes

What problems should be paid attention to when welding galvanized steel pipes

Keywords :What problems should be paid attention to when welding galvanized steel pipes        Update : 2022-12-30        View(s) : 1

1. The premise is to polish the galvanized steel pipe The galvanized layer at the weld must be polished off, otherwise, bubbles, trachoma, false welding, etc. will occur. It will also make the weld brittle and reduce rigidity. 2. The welding characteristics of galvanized steel Galvanize...

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