Welding Procedures for Chromium-Molybdenum Alloy Pipes in Delayed Coking Unit Furnaces
- Nov 19, 2024
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Chromium-molybdenum alloy steel is a high-strength, corrosion-resistant material commonly used in manufacturing critical components such as high-temperature, high-pressure vessels and autoclaves. In delayed...
Chromium-Molybdenum Steel Pipes in Heating Furnaces of Delayed Coking Units
- Nov 13, 2024
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As a unique type of process equipment, delayed coking units effectively separate petroleum coke from crude oil and convert it into usable products. Due to their important role in the oil refining process,...
Post-Weld Heat Treatment for Carbon Steel Pipes
- Oct 28, 2024
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3. Requirements for Post-Weld Heat Treatment 3.1 Purpose The combination of steel hardenability, diffusible hydrogen content in the deposited metal, and the stress state of the weld joint can lead...
Post-Weld Heat Treatment Requirements for Carbon Steel Pipes
- Oct 23, 2024
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Abstract: Carbon steel is a type of steel that exhibits good weldability. If appropriate welding materials and processes are selected, the welded joints are unlikely to develop hardened structures...
Choosing Blanks for Extra-Large-Diameter Hot-Rolled Seamless Pipes
- Oct 19, 2024
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3.1 Selection of Extra-Large-Diameter Thin-Walled Hot-Rolled Seamless Steel Pipe Blanks 3.1.1 Blank Selection for Pipe Expansion Process First, the wall thickness of the blank pipe is calculated based...
Extra-Large Diameter Thick-Walled Hot-Rolled Seamless Pipes
- Sep 17, 2024
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2.1 Variety Development History Extra-large diameter, thick-walled, hot-rolled SMLS pipes come in many varieties and are widely used in various fields. The development of the boiler industry toward...
Manufacturing Extra-Large Diameter Thin-Walled Hot-Rolled Seamless Pipes
- Sep 07, 2024
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It is generally accepted that hot-rolled seamless steel pipes with a diameter of ≤159 mm are classified as small-diameter hot-rolled seamless steel pipes; those with a diameter between 159 mm and ≤325...
Mechanical Expansion of Welded Steel Pipes
- Aug 15, 2024
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2. Process Analysis 2.1 The Influence of Axial Contraction of the Steel Pipe on Its Size and Performance During Expansion When the steel pipe expands radially, it will shrink in the axial direction to...
Working Principle of Mechanical Expansion of Welded Steel Pipes
- Aug 05, 2024
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Abstract: The definitions and working principles of mechanical expansion and hydraulic expansion of welded steel pipes are elaborated. Combined with production practice, the similarities and differences...