... 0.24" -0.86" Steel Grade: Gr. A/B/C, X42-X80, Q235 Standard: ASTM, API, BS, JIS, GB, DIN ... Brand Name: YF SSAW STEEL PIPE SpecificationsChina StandardSteel GradeStandardseamless steel tubesand pipesfor structural ... GB3087-199910, 20ASTM A179, ASTM A192ASTM SA179,SA192,BS3059Seamless Steel Tubes for high pressure --Chemical fertilizer equipmentGB6479-8610, 20G ...