No. 45 seamless steel pipes are made of steel ingots or solid tube blanks that are perforated into capillary tubes and then made by hot rolling, cold rolling, or cold drawing. No. 45 seamless steel pipe plays an important role in my country's steel pipe industry. According to incomplete statistics,

The nominal diameter of straight seam steel pipe refers to the series of diameters specified in the standard for straight seam steel pipes. For straight seam steel pipes, pipe fittings, valves, etc., the nominal straight seam steel pipe diameter is represented by the series specified in the standard

Oil casing can be roughly divided into1. Surface casing.2. The middle casing.3. Production casing.4. Drilling casing.The surface casing is mainly to suspend and support the subsequent layers of the casing through the casing head installed on the top. Another is to isolate the surface shallow water l

The pipes used in industrial boilers are mainly seamless steel pipes, because the performance indicators of seamless steel pipes can fully meet the boiler application requirements. Although the cost is high, its safety and reliability are high. Welded steel pipes are generally used as low-pressure f