1. The spiral steel pipe packaging should be able to avoid looseness and damage during normal handling, transportation, and storage.2. If the buyer has special requirements for the packaging material and packaging method of the spiral steel pipe, it should be specified in the contract; if not specif
1. Fixed-length spiral steel pipes can be unbundled. 2. If the two ends of the spiral steel pipe are threaded, they should be protected by thread protectors. Apply lubricant or rust inhibitor on the thread. The two ends of the spiral steel pipe are broken, and the two ends can be equipped with nozzl
Large seamless pipe forming techniques mainly include: hot spinning method, heat extrusion method, hot piercing rolling method, including preparation of expanding method. The details are as follows:Hot spinning method,It is the flat blank or pre molded blank is fixed to the rotating core rod, the pr
Corrosion in stainless steel is one of the most troublesome technical concerns for fabricators. Whether localized or widespread, corrosion takes many forms, depending on the particular service environment. Some common types are general corrosion, crevice corrosion, intergranular corrosion, pitting c
When a fabrication requires corrosion resistance and high performance, your foremost concern is its affordability. One metal that can meet this demand is ferritic stainless steel. Grades include AISI type 409, 11CfCb, 430, 436, 439, and 18CrCb, just to name a few. Whichever grade you choose, ferriti
Spiral steel pipe is a spiral seam steel pipe with steel reel as raw material, which is often heated and extruded, and welded by automatic double wire double-sided submerged arc welding process. The spiral steel pipe feeds the strip into the welded pipe unit. After rolling a plurality of rolls, the
Spiral welded pipe common forging equipment commonly used hammer, hot die forging press, horizontal forging machine and friction press. The basic process of die forging process die forging process: cutting, heating, forging, forging, stamping, cutting edge, quenching and peening. Common processes ar
In the first half of 2019, India overtook South Korea to become the world's second largest importer of scrap steel. According to data released by the Indian Ministry of Commerce, India’s scrap imports in the first half of the year increased by 35% to 3.87 million tons, of which the two major supplie
