How Much Do You Know About the Causes of Cracking in Precision Steel Tubes?
How Much Do You Know About the Causes of Cracking in Precision Steel Tubes? Those who frequently work with precision steel tubes likely have their own understanding of the drawbacks of these tubes. One common issue with precision steel tubes is their tendency to crack. Once a precision steel tube cracks, it needs to be repaired, and the process can [...]
Introduction to Hot Treatment Process of Wide and Thick Steel Plates
Introduction to Hot Treatment Process of Wide and Thick Steel Plates Background Introduction With the continuous development and improvement of China's industrial technology level, the overall demand for wide and thick steel plates has increased in various industries such as shipbuilding, mechanical processing, coal mining equipment, mining machinery, petrochemicals, and bridge construction. Simultaneously, there is a growing demand for high-grade, [...]
The Repeatable Times of Quenching and Tempering
The Repeatable Times of Quenching and Tempering Repeated quenching is a common occurrence. If the initial quenching fails or the tempering is excessive, re-quenching or re-tempering becomes necessary. However, repeated quenching can lead to quenching cracks due to the accumulation of quenching stress and coarsening of crystal grains, which increases hardenability. Consequently, the chances of deformation and quenching cracks also [...]
Deburring Methods in Metal Processing
Deburring Methods in Metal Processing Burrs are ubiquitous in metal processing. No matter how advanced and precise the equipment is, burrs will inevitably appear on the finished product. They are primarily caused by plastic deformation of the material, resulting in unwanted excess material along the machined edges. Ductile and malleable materials are particularly susceptible to burr formation. Common types of [...]
Differences Between Straight Seam Steel Pipe, Spiral Steel Pipe, and Seamless Steel Pipe
**Differences Between Straight Seam Steel Pipe, Spiral Steel Pipe, and Seamless Steel Pipe** **Welding Process** In terms of the welding process, the welding methods for spiral welded pipes and straight seam steel pipes are the same. However, straight seam welded pipes inevitably have many T-shaped welds, which greatly increases the probability of welding defects. Moreover, the residual stress at the [...]
Common Steel Pipe Specification Table
Common Pipe Specification Table Nominal Diameter (DN) Outer Diameter of Steel Pipe Seamless Steel Pipe Wall Thickness (mm) Series A Series B 10 Φ17.2 mm Φ14 mm 15 Φ21.3 mm Φ18 mm 20 Φ26.9 mm Φ25 mm 25 Φ33.7 mm Φ32 mm 32 Φ42.4 mm Φ38 mm 40 Φ48.3 mm Φ45 mm 50 Φ60.3 mm Φ57 mm 65 Φ76.1 mm [...]