2024-01-11 Most people think that "stainless steel does not rust. If it rusts, it is no longer stainless steel. There may be something wrong with the steel." This is a one-sided wrong view due to a lack of understanding of stainless steel.Stainless steel can also rust under certain conditions. Stainless steel
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2024-01-10 1. The main feature of ordinary seamless steel pipes is that they have no welding seams and can withstand greater pressure. Products can be very rough as cast or cold-drawn parts.2. Cold-drawn precision steel pipes are products that have appeared in recent years. They mainly have strict tolerances a
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2024-01-09 Spiral steel pipes are mainly used in water supply projects, the petrochemical industry, the chemical industry, the electric power industry, agricultural irrigation, and urban construction. They are among the twenty key products developed. For liquid transportation: water supply and drainage. For ga
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2024-01-08 In terms of processing technology: hot rolling is hot processing, and cold drawing is cold processing. Hot rolling is rolling above the recrystallization temperature, and cold rolling is rolling below the recrystallization temperature;Distinguish from appearance: cold-rolled seamless steel pipes hav
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2024-01-05 The steel plate is first pressed into a U shape and then into an O shape in the forming mold, and then internal and external submerged arc welding is performed. After welding, the diameter is usually expanded at the end of the entire length, which is called UOE welded pipe, and the diameter without
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2024-01-04 1. Acceptance principles for spiral steel pipesThe quality inspection and acceptance of spiral welded pipes shall be carried out by the supplier's technical quality supervision department. The supplier must ensure that the delivered spiral welded pipes comply with the requirements of the correspondi
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2024-01-03 Straight seam steel pipes are steel pipes with welds that are longitudinally parallel to the steel pipe. They are usually divided into metric electric welded steel pipes, electric welded thin-walled pipes, transformer cooling oil pipes, etc. The production process of straight seam welded pipe is sim
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2024-01-02 Technical requirements for straight seam welded steel pipes:The technical requirements and inspection of straight seam welded steel pipes are based on the GB3092 "Welded Steel Pipes for Low-Pressure Fluid Transport" standard. The nominal diameter of welded steel pipes is 6~150mm, the nominal wall th
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