2023-06-29 ASTM A179, A192, A210 specification covers Carbon Steel Seamless tube for high-temperature service. These pipe are used heat exchangers, condensers, High Temperature Material should furnish to Specification A 530.GB5310-2008 is applicable to seamless tubes for making steam boiler whose pressure is h
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2023-06-28 The seamless tube is made of strong steel blocks without any welds. Welds may represent weak areas (susceptible to corrosion, corrosion and general damage).Compared with welded tubes, seamless tubes have a more predictable and more precise shape in terms of roundness and ovality.The main disadvantag
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2023-06-27 OCTG is the abbreviation of Oil Country Tubular Goods, mainly refers to the pipeline products used for oil and gas production (drilling activities). OCTG tubes are usually manufactured according to API or related standard specifications. There are three main types, including drill pipe, casing and t
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2023-06-26 Annealing temperature.The annealing we often talk about is actually solution heat treatment of stainless steel. Whether the annealing temperature reaches the specified temperature will also affect the brightness of the stainless steel tube. We can observe through the annealing furnace that the stain
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2023-06-25 The difference between 304 and 304L stainless steel pipe.As the most widely used stainless steel heat-resistant steel, food equipment, generalized equipment, atomic energy industry equipment. 304 is the most common steel, corrosion resistance, heat resistance, low temperature strength, good mechanic
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2023-06-21 Compared with austenitic stainless steel pipe, duplex stainless steel pipe's shortcomings are as follows:1) the universality of the application and multi-faceted as austenitic stainless steel, for example, its use temperature must be controlled at 250 degrees Celsius.2) its plastic toughness than th
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2023-06-20 Spiral pipe factory should be done before the mechanical performance test and flattening test, and flaring test, and to achieve the standard requirements. Spiral steel pipe quality inspection method is as follows:1, From the face of it, that is visual inspection. Visual inspection of welded joints i
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2023-06-19 Difference between hot stretch reducing pipe and LSAW steel pipe are basically has the following two points:1, Resulting in differnce on product quality due to the different processes, hot stretch reducing also carried out a process after high-frequency welding process that lsaw steel pipe can not f
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