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Tag Archives: Electric Resistant Welding
History of API Casing Grade
some short history to answer what’s behind API letter casing grade Continue reading
Posted in Engineering
Tagged 100k, 105k, 110ksi, 13Cr, 1927, 1930, 1934, 1938, 1940, 1956, 1960, 1968, 1984, 1985, 1987, 1989, 1992, 2011, 22HRC, 25.4HRC, 30ksi, 35ksi, 45ksi, 55ksi, 5CT, 75k, 90ksi, 95k, 9Cr, 9th Edition, API Spec 5A, API Specification 5CT, API Tentative Standard 5AC, API user member, B, C, C110, C75, C90, C95, casing, deeper well, drill pipe, Electric Resistant Welding, embrittlement, ERW, F25, grade, Grade A, Grade D, H40, hardness controlled, high carbon steel pipe, History, IADC, J55, K55, L80, M65, mild sour service, MR0175, MR0175-98, N80, NACE, normalized and tempering, OCTG, oil industry, P105, P110, phonetic clarity, Q125, quench and temper, R95, restricted yield strength, seamless, SPE, sulphide, T95, tensile, tubing, upstream, yield strength
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