RANGE 15 NB UP TO 1200 NB IN SCH 5S , 10S ,10, 20 , 40S , 40 , STD , 60 , 80S , 80 , XS , 100 , 120 , 140 , 160 & XXS FORM SEAMLESS / ERW / WELDED IN ROUND & SQUARE . Stainless Steel ASTM / ASME SA 312 GR. TP 304 , 304L , 304H, 309S ,309H , 310S, 310H , 316 , 316TI , 316H , 316 LN , 317 , 317L , 321 , 321H , 347 , 347 H , 904L . ASTM / ASME SA 358 CL 1 & CL 3 GR . 304 , 304L , 304H, 309S ,309H , 310S, 310H , 316 , 316H , 321 , 321H , 347 . DUPLEX STEEL ASTM / ASME SA 790 UNS NO S 31803 , S 32205 , S 32550 , S 32750 , S 32760 Carbon Steel ASTM / ASME A 53 GR. A & B , ASTM A 106 GR. A , B & C . API 5L GR. B , API 5L X 42 , X 46 , X 52 , X 60 ,X 65 & X 70 . ASTM / ASME A 691 GRA , B & C Alloy Steel ASTM / ASME A 335 GRP 1 , P 5 , P 9 , P 11 , P 12 , P 22 , P 23 , P 91 ASTM / ASME A 691 GR 1 CR , 1 1/4 CR , 2 1/4 CR , 5 CR , 9CR , 91 Nickel Alloy ASTM / ASME SB 163 UNS 2200 ( NICKEL 200 ) ASTM / ASME SB 163 UNS 2201 (NICKEL 201 ), ASTM / ASME SB 163 / 165 UNS 4400 (MONEL 400 ) ASTM / ASME SB 464 UNS 8020 ( ALLOY 20 / 20 CB 3 ), ASTM / ASME SB 704/705 UNS 8825 INCONEL (825) ASTM / ASME SB 167 / 517 UNS 6600 (INCONEL 600 ) ASTM / ASME SB 167 UNS 6601 ( INCONEL 601 ), ASTM / ASME SB 704 /705 UNS 6625 (INCONEL 625) ASTM / ASME SB 619/622/626 UNS 10276 ( HASTELLOY C 276 ) Copper Alloy ASTM / ASME SB 111 UNS NO. C 10100 , 10200 , 10300 , 10800 , 12000,12200, 70600 , 71500 . ASTM / ASME SB 466 UNS NO. C 70600 ( CU -NI- 90/10) , C 71500 ( CU -NI- 70/30)