description | size range | specification | grades |
s. S. Seamless pipes | 1/4" nb to 16" nb sch 5, sch 10, sch 20, sch 40, sch 80, sch 160, sch xxs. | astm a-312, a-213, a-269, a-268 | tp-304, 309, 310, 304l 316, 316l, 316h, 316ti, 321, 310, 304h, 347, 347h, 904l |