We are offering seamless pipes, seamless tubes. the following table represents size rang, product standards and materials grades of seamless ss pipes & tubes. stainless steel: astm a 312, a 213, a 249, a 269, a 358, a 240type: 202, 304, 304l, 304h, 316, 316l, 316ti, 321, 321h, 317, 317l, 310, 310s, 409, 410, 420, 430 etc. carbon steel: astm a 106, a 53, api a 5l gr a, b, c, astm a 333, gr 1 to 6 (ibr & non ibr) alloy steel: astm a 335, gr p1, p2, p5, p9, p11, p22, p91 nickel alloys: hastelloy, 904, titanium etc. copper alloys: aluminium, copper, brass & gunmetal types : round, square rectangular. size : seamless: upto 24" nbwelded: 1/2" nb to 60" nb