SEAMLESS ROUND TUBES Type Grade AISI UNS ASTM EN INCH 10S 40S XS/80S 160 mm Austenitics 304L “1.4307 1/4″ – 24″ 2,11mm – 6,35 mm 2,77 mm – 9,53 mm 3,73 mm – 12,70 mm 4,78 mm-59,54 mm 1,6-55 mm Austenitics 304H “1.4948 1/4″ – 24″ 2,11mm – 6,35 mm 2,77 mm – 9,53 mm 3,73 mm – 12,70 mm 4,78 mm-59,54 mm 1,6-55 mm Austenitics 321 “1.4541 1/4″ – 24″ 2,11mm – 6,35 mm 2,77 mm – 9,53 mm 3,73 mm – 12,70 mm 4,78 mm-59,54 mm 1,6-55 mm Austenitics 321H “1.4878 1/4″ – 24″ 2,11mm – 6,35 mm 2,77 mm – 9,53 mm 3,73 mm – 12,70 mm 4,78 mm-59,54 mm 1,6-55 mm Austenitics 316L “1.4404 1/4″ – 24″ 2,11mm – 6,35 mm 2,77 mm – 9,53 mm 3,73 mm – 12,70 mm 4,78 mm-59,54 mm 1,6-55 mm Austenitics 316Ti “1.4571 1/4″ – 24″ 2,11mm – 6,35 mm 2,77 mm – 9,53 mm 3,73 mm – 12,70 mm 4,78 mm-59,54 mm 1,6-55 mm Austenitics 317L “1.4438 1/4″ – 24″ 2,11mm – 6,35 mm 2,77 mm – 9,53 mm 3,73 mm – 12,70 mm 4,78 mm-59,54 mm 1,6-55 mm Austenitics 904L “1.4539 N08904 1/4″ – 24″ 2,11mm – 6,35 mm 2,77 mm – 9,53 mm 3,73 mm – 12,70 mm 4,78 mm-59,54 mm 1,6-55 mm Austenitics 254 SMO “1.4547 S31254 1/4″ – 24″ 2,11mm – 6,35 mm 2,77 mm – 9,53 mm 3,73 mm – 12,70 mm 4,78 mm-59,54 mm 1,6-55 mm Austenito-Ferritics Duplex “1.4462 S31803 1/4″ – 24″ 2,11mm – 6,35 mm 2,77 mm – 9,53 mm 3,73 mm – 12,70 mm 4,78 mm-59,54 mm 1,6-55 mm Austenito-Ferritics Super Duplex “1.4410 32750 1/4″ – 24″ 2,11mm – 6,35 mm 2,77 mm – 9,53 mm 3,73 mm – 12,70 mm 4,78 mm-59,54 mm 1,6-55 mm Austenito-Ferritics Super Duplex “1.4501 32760 1/4″ – 24″ 2,11mm – 6,35 mm 2,77 mm – 9,53 mm 3,73 mm – 12,70 mm 4,78 mm-59,54 mm 1,6-55 mm Refractories 310S “1.4845 S31008 1/4″ – 24″ 2,11mm – 6,35 mm 2,77 mm – 9,53 mm 3,73 mm – 12,70 mm 4,78 mm-59,54 mm 1,6-55 mm WELDED ROUND TUBES Type Grade AISI UNS ASTM EN INCH 10S 40S XS/80S 160 mm Austenitics 304L “1.4307 1/4″ – 24″ 2,11mm – 6,35 mm 2,77 mm – 9,53 mm 3,73 mm – 12,70 mm 4,78 mm-59,54 mm 1,6-55 mm Austenitics 304H “1.4948 1/4″ – 24″ 2,11mm – 6,35 mm 2,77 mm – 9,53 mm 3,73 mm – 12,70 mm 4,78 mm-59,54 mm 1,6-55 mm Austenitics 321 “1.4541 1/4″ – 24″ 2,11mm – 6,35 mm 2,77 mm – 9,53 mm 3,73 mm – 12,70 mm 4,78 mm-59,54 mm 1,6-55 mm Austenitics 321H “1.4878 1/4″ – 24″ 2,11mm – 6,35 mm 2,77 mm – 9,53 mm 3,73 mm – 12,70 mm 4,78 mm-59,54 mm 1,6-55 mm Austenitics 316L “1.4404 1/4″ – 24″ 2,11mm – 6,35 mm 2,77 mm – 9,53 mm 3,73 mm – 12,70 mm 4,78 mm-59,54 mm 1,6-55 mm Austenitics 316Ti “1.4571 1/4″ – 24″ 2,11mm – 6,35 mm 2,77 mm – 9,53 mm 3,73 mm – 12,70 mm 4,78 mm-59,54 mm 1,6-55 mm Austenitics 317L “1.4438 1/4″ – 24″ 2,11mm – 6,35 mm 2,77 mm – 9,53 mm 3,73 mm – 12,70 mm 4,78 mm-59,54 mm 1,6-55 mm Austenitics 904L “1.4539 N08904 1/4″ – 24″ 2,11mm – 6,35 mm 2,77 mm – 9,53 mm 3,73 mm – 12,70 mm 4,78 mm-59,54 mm 1,6-55 mm Austenitics 254 SMO “1.4547 S31254 1/4″ – 24″ 2,11mm – 6,35 mm 2,77 mm – 9,53 mm 3,73 mm – 12,70 mm 4,78 mm-59,54 mm 1,6-55 mm Austenito-Ferritics Duplex “1.4462 S31803 1/4″ – 24″ 2,11mm – 6,35 mm 2,77 mm – 9,53 mm 3,73 mm – 12,70 mm 4,78 mm-59,54 mm 1,6-55 mm Austenito-Ferritics Super Duplex “1.4410 32750 1/4″ – 24″ 2,11mm – 6,35 mm 2,77 mm – 9,53 mm 3,73 mm – 12,70 mm 4,78 mm-59,54 mm 1,6-55 mm Austenito-Ferritics Super Duplex “1.4501 32760 1/4″ – 24″ 2,11mm – 6,35 mm 2,77 mm – 9,53 mm 3,73 mm – 12,70 mm 4,78 mm-59,54 mm 1,6-55 mm Refractories 310S “1.4845 S31008 1/4″ – 24″ 2,11mm – 6,35 mm 2,77 mm – 9,53 mm 3,73 mm – 12,70 mm 4,78 mm-59,54 mm 1,6-55 mm SQUARE AND RECTANGULAR TUBES Type Grade AISI Height x width Thickness Austenitics 304 “1.4301 20×20 40 x 20 – 400×400 400×300 1-10mm Austenitics 316 “1.4404 20×20 40 x 20 – 400×400 400×300 1-10mm