ASTM A 409/A 409M - 01 (Reapproved 2005) Standard Specification for Welded Large Diameter Austenitic Steel Pipe for Corrosive or High-Temperature Service

American Society for Testing and Materials (ASTM). Current edition approved Sept. 1, 2005. Published October 2005. Originally approved in 1957 . Last previous edition approved in 2001 as A 409/A 409M – 01. 6 p. This specification covers straight seam or spiral seam electric-fusion-welded, light-wall, austenitic chromium-nickel alloy steel pipe for corrosive or high-temperature service. The sizes covered are NPS 14 to 30 with extra light (Schedule 5S) and light (Schedule 10S) wall thicknesses. Table X1.1 shows the wall thickness of Schedule 5S and 10S pipe. Pipe having other dimensions may be furnished provided such pipe complies with all other requirements of this specification.