Page 3 of Steel Pipe News

Foreword Hydrogen energy is a clean, efficient, and sustainable zero-carbon energy source, playing a crucial role in the global transition to carbon neutrality. As hydrogen technology progresses, large-scale...

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...

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,...

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...

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...

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...

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...

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...

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...

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...

To improve the global climate, CO2 capture, storage, and utilization technologies are being promoted and applied in large areas. Since martensitic stainless steel pipes have both high strength and...

The pressure-bearing capacity of steel pipes is influenced by various factors, including pipe materials, wall thickness, diameters, connections, and internal pressure. The pressure-bearing capacity...