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Do you know the suitable temperature for welding straight seam steel pipes
Welding, also known as fusion welding, is a manufacturing process and technique that joins metals or other thermoplastic composite materials (such as plastics) by heating, applying high temperature, or high pressure. There are three welding methods: 1. Fusion welding: The workpiece is heated to f...Read more -
What are the heating requirements for spiral welded steel pipes
Heating spiral welded steel pipes before hot rolling not only improves the metal’s plasticity and reduces deformation force, but also facilitates rolling. Furthermore, during the heating process, certain structural defects and stresses introduced by the ingot can be eliminated. Spiral welde...Read more -
What are the performance characteristics and applications of high-quality seamless stainless steel pipes for fluid transmission
First, what are the performance characteristics of seamless stainless steel pipes? 1. Corrosion resistance: Stainless steel has strong corrosion resistance, resisting the erosion of various media such as acids, alkalis, and salts. It can be used for a long time in harsh working environments, main...Read more -
How to Properly Store Straight Seam Steel Pipes
During the manufacturing process of straight seam steel pipes, manufacturers need to have excellent control over the extrusion pressure. This is because during welding, when the temperature of the two pipe blank edges reaches the welding temperature, pressure is applied to them. This pressure all...Read more -
How to Correctly Select and Use 15CrMoG Boiler Steel Tubes
Correctly selecting and using 15CrMoG boiler steel tubes requires attention to several key stages: selection, installation, operation, and maintenance. First, what should be considered during the selection stage of 15CrMoG boiler steel tubes? (a) Based on operating parameters: Accurately consider...Read more -
What is 20Cr seamless steel pipe
Chemical composition of 20Cr seamless steel pipe (%): Silicon: 0.17～0.37. The chemical composition of 20Cr seamless steel pipe mainly includes elements such as iron, carbon, and chromium, among which the silicon content is usually between 0.17 and 0.37%. Mechanical properties of 20Cr seamless st...Read more -
What are the common methods for welding steel pipes
Currently, the commonly used methods for steel pipe welding include shielded metal arc welding, submerged arc welding, gas tungsten inert gas welding, gas metal arc welding, flux-cored wire arc welding (FMCW), and downhill welding. 1. SMAW for steel pipe welding: (1) The advantages of SMAW for st...Read more -
What are the connection methods and cleaning methods for large-diameter steel pipes
First, what are the cleaning methods for large-diameter steel pipes? 1. Shot blasting: A high-power motor drives blades to rotate at high speed, causing abrasives such as steel shot, steel grit, wire segments, and minerals to be blasted onto the surface of the large-diameter steel pipe under cent...Read more -
What are some methods for inspecting the quality of large-diameter thin-walled steel pipes
1. Generally, large-diameter thin-walled steel pipes are used for transporting relatively low-pressure fluids such as water, gas, air, oil, and heating steam. 2. Ordinary carbon steel electrical conduit (GB3640-88) is a steel pipe used to protect electrical wires in industrial and civil buildings...Read more -
What are the differences between galvanized steel pipes and plastic-coated steel pipes
First, what are the characteristics of plastic-coated steel pipes? 1. Plastic-coated steel pipes are hygienic and non-toxic, do not accumulate scale, do not breed microorganisms, and ensure fluid quality. 2. Plastic-coated steel pipes have strong flame-retardant ability; under combustion tests, t...Read more -
Why does uneven wall thickness occur in spiral submerged arc welded steel pipes
Uniform wall thickness in spiral submerged arc welded steel pipes looks aesthetically pleasing, distributes stress evenly, and is durable. Uneven wall thickness leads to uneven stress distribution, making thinner sections of the pipe more prone to cracking. Uneven wall thickness is a common pheno...Read more -
Why is SA210C seamless steel pipe commonly used in water-cooled wall tubes
First, what is SA210C seamless steel pipe? SA210Gr.C seamless steel pipe, also known as SA210C seamless steel pipe, is a specific type of steel pipe mainly used in the heating surface tube systems of large-capacity power plant boilers (such as 300MW, 600MW, etc.) with operating temperatures below...Read more
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