... Material: X42-X60 ST44 ST4carbon steel pipe price per ton specifications StandardAPI 5CT, 5L; ASTM, BS, JIS, DINSteel GradeAPI 5L ... Grade B/ASTM A106/A53B, BS 1387O.D. ... capacity, 400,000tons per yearDelivery time20 daysQualificationindependent import and export qualificationsMain marketAsia, India, Middle East, America, Europe ...