Oil Country Tubular Goods (OCTG) refer to steel tubular products used in Oil & Gas Exploration and Production. Tubulars can be seamless and welded pipes and come in various sizes and lengths, and a variety of products such as: drill pipes, casing and tubing.
All OCTG are produced in different grades, different connection types, with various pressure and temperature rating, material requirements and other characteristics. One of the key characteristics though, is corrosion resistance and strength. API and ISO standards govern the industry, with a lot of manufacturers coding and grading conventions. Although no standard can be the only source of decision making when it comes to selection of OCTG, the following standards generally govern:
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