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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) : 50

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) : 56

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) : 56

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...

Selection of welding skills for stainless steel pipe fittings

Selection of welding skills for stainless steel pipe fittings

Keywords :Selection of welding skills for stainless steel pipe fittings        Update : 2022-12-29        View(s) : 41

1. Argon arc welding is a welding technique that uses argon as a shielding gas. Also known as argon gas-shielded welding. It is to pass argon protective gas around the arc welding to isolate the air from the welding area and prevent the oxidation of the welding area. Argon arc welding technology is ...

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