SY/T 6857.1-2012 Petroleum and natural gas industries.OCTG used for special environment.Part 1:Recommended proctice on selection of casing and tubing of carbon and low steels for use in sour service (English Version)
API Spec 5CT Specification for Casing and Tubing*, 2018-01-01 Update
GB/T 19830 Steel pipes for oil and gas well casing or tubing in the oil and gas industry*, 2023-11-27 Update
GB/T 20972.1 Petroleum and natural gas industries- Material for use in HS-containing environments in oil and gas production- Part 1: General principles for selection of cracking-resistant materials
GB/T 20972.2 Petroleum and natural gas industries.Materials for use in HS-containing environments in oil and gas production.Part 2:Cracking-resistant carbon and low alloy steels,and the use of cast irons
GB/T 21267 Petroleum and natural gas industries—Procedures for testing casing and tubing connections*, 2017-05-12 Update
GB/T 4157 Laboratory testing of metals for resistance to sulfide stress cracking and stress corrosion cracking in H2S environment*, 2017-09-29 Update
GB/T 8650 Evaluation of pipeline and pressure vessel steels for resistance to hydrogen-induced cracking*, 2015-12-10 Update
GB/T 9253.2 Petroleum and natural gas industries—Threading,gauging and thread inspection of casing,tubing,and line pipe threads*, 2017-11-01 Update
SY/T 5539 Quality assessment method for oil country tubular goods*, 2013-11-28 Update
SY/T 6857.1-2012 history
2012SY/T 6857.1-2012 Petroleum and natural gas industries.OCTG used for special environment.Part 1:Recommended proctice on selection of casing and tubing of carbon and low steels for use in sour service