... and piling Standard: API 5L, API 5CT, ASTM A252, ASTM 53, EN10217, EN10219, BS, JIS, IS,Out Diameter:219.1 mm ... , X42,X46, X56, X60,X65,X70ASTM A252 GR 1, GR 2, GR 3ASTM A53: GR A, GR B, GR CBS 4360: Grade 43, Grade 50EN: S275 ... 10204/3.1B Carbon steel LSAW steel pipe API 5L Gr.B/X42/X52/X60/X70