Standard API | ASTM | BS | DIN | DNV | GB | ISO | JIS | KS | LR | NF | Others
Standard Number
65 (Carbon Steel Tubes Suitable for Screwing in Accordance with ISO 7/1)
559 (Welded or Seamless Steel Tubes for Water Sewage and Gas)
2604-2 (Steel Products for Pressure Purposes PART2 Wrought Seamless Tubes)
2604-3 (Steel Products for Pressure Purpose Parts Electric Resistance and Induction Welded Tubes)
2604-5 (Steel Products for Pressure Purposes PART5 Longitudinally Welded Austenitic stainless Steel Tubes)
2937 (Plain End Seamless Steel Tubes for Mechanical Application)
2938 (Hollow Steel Bars for Machining)
3183 (Oil and Natural Fas Industries Steel Line Pipe)
3304 (Plain end Seamless Precision Steel Tubes)
3305 (Plain end Welded Precision Steel Tuves)
3306 (Plain end as Welded and Sized Precision steel Tubes)