ASTM A409/A409M-19 pdf free.Standard Specification for Welded L arge Diameter Austenitic Steel Pipe for Corrosive or High-Temperature Service.
1.1 At the request of the purchaser a product analysis of one coupon representing finished sheet or plate from each heat shall be made by the pipe manufacturer. The drillings for product analysis may be taken from shear crop or test specimens. The results of product analysis shall conform to the
requirements in Table 1 and shall be reported to the purchaser.
1.1 Weld soundness shall be determined through radiographic examination made in accordance with requirements as agreed upon between the pipe manufacturer and purchaser.
1.2 Boiling Nitric Acid Test- Except for Grade TP321,coupons representing finished pipe made of nonmolybdenumbearing material (0.50 % and less molybdenum) shall meet the requirement of the boiling nitric acid test conducted according to Practice C of Practices A262. The condition of the test
specimens and the corrosion rates are as follows: Type 347 and Type 348 shall be tested in the sensitized condition (heated for1 h at 1240 °F [675 °C]) and the rate of penetration shall not exceed 0.0020 in. [0.05 mm]/month. All other nonmolybdenum-bearing types, except for Grade TP321, shown in Table 1 shall be tested in the annealed and unsensitized condition and the rate of penetration shall not exceed 0.0015 in. [0.04 mm]/month.
2.1 All products furnished under this SA specification are intended for application under the rules of Section II or for application under the rules of Section VIII-1. Furnishing of such products is limited to manufacturers who hold the appropriate ASME Certification Mark. Weld procedures,welders, and welding machine operators shall be qualified in accordance with ASME Boiler and Pressure Vessel Code,Section IX.
2.2 The product shall meet all applicable requirements of Section Il or Section VIII, Division 1, if applicable, including those requirements pertaining to heat treatment and butt welds.Authorized inspection at the point of manufacture and application of the appropriate Certification Mark is required.
2.3 The applicable ASME partial data report form, signed by an authorized inspector, and a certified mill test report shall be furnished for each lot of pipe. The term“lot” applies to all pipe of the same mill heat of material and wall thickness which is heat treated in one furnace charge. For pipe which is not heat treated or which is heat treated in a continuous furnace, a lot shall consist of each 200 ft [61 m] or fraction thereof of all pipe of the same mill heat of material and wall thickness, subjected to the same heat treatment. For pipe which is heat treated in a batch-type furmace which is automatically controlled within a  range and is equipped with recording pyrometer so that the heating records are available, a lot may be defined the same as for continuous furnaces.
2.4 Each length of pipe shall be marked in such a manner as to identify each such piece with the“Iot” and the representative certified mill test report.ASTM A409 pdf download.