Seamless stainless steel pipe Stainless steel pipe/tube specification: Type: round pipe Diameter: 6 - 159mm Thickness: 0.5 - 20mm Length: 10 - 13000mm Material: 304, 304l, 316, 316l, 321, and 310s and etc. Standards: astm a213/312/269, din 17457/17458, jis g3429, Gb/t 14975/14976/13296