2024-12-20 There are many methods for quality inspection of large-diameter straight-seam welded steel pipes, among which physical methods are also commonly used inspection methods. Physical inspection is a method of measuring or inspecting using some physical phenomena. Inspection of materials or internal defe
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2024-12-19 Submerged arc welding spiral steel pipe uses continuous welding wire as electrode and filler metal. When working, a layer of granular flux is covered in the welding area. The arc of the large-diameter spiral pipe burns under the flux layer, melting the end of the welding wire and the local parent ma
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2024-12-18 The coating raw materials of plastic-coated steel pipes include epoxy resin (epoxy powder) and polyethylene. The inner wall of the pipe is coated with epoxy powder by hot melting, and the outer wall of the pipe is generally anti-corrosive with epoxy powder or polyethylene. Epoxy powder is a thermose
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2024-12-17 After rolling, there will be defects such as uneven wall thickness at both ends of the pipe, so each steel pipe must cut off a part of both ends. This article introduces how to know the defective part of the steel pipe end. Wall thickness measurement; steel pipes have hollow cross-sections, and thei
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2024-12-16 359 inner diameter stainless steel pipe is a common steel product with many unique characteristics and is widely used in various fields. This article will introduce the characteristics, advantages, and applications of inner diameter 359 stainless steel pipes in industry and construction.1. Character
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2024-12-13 In the steel pipe industry, welding is a common connection method used to firmly connect two parts of a steel pipe. However, the welds produced during the welding process need to be inspected to ensure their quality and reliability. So, how do we inspect steel pipe welds? Next, I will introduce seve
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2024-12-12 Seamless steel pipes are an important steel product with a wide range of applications, playing an important role in industry, construction, energy, and other fields. Seamless steel pipes are characterized by exquisite craftsmanship and excellent performance and can meet various complex environments
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2024-12-11 In construction, engineering, and manufacturing, steel pipes are indispensable materials, and as one of the common specifications, the weight of DN50 steel pipes is crucial for engineering design and construction.1. Size and weight of DN50 steel pipesDN50 steel pipes refer to pipes with a nominal di
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