astm a269 tp304 seamless stainless steel tube Tolerance: OD: +- 0.2mm, WT: +-0.05mm, Length: +-5mm Stainless Steel Tubes/Pipes (304H 304N 304LN) 1. OD: 10-800mm ... .05mm, Length: +-5mm. 5. Material: 904L, 317L, 316TI, 316H, 316L, 316, 310S, 310H, 309S, 309H, 347, 347H, 321, 321H, 304H, 304L ... house, building, shopping mall, inside or outside projects. 10. Standard: ASTM AISI GB DIN JIN JIS.