ASME SA335:2013 pdf free download

ASME SA335:2013 pdf free download.SPECIFICATION FOR SEAMLESS FERRIITIC ALLOY-STEEL PIPE FOR HIGH-TEMPERATURE SERVICE.
1.1 This specification covers nominal wall and minimum wall seamless ferritic alloy-steel pipe intended for high-temperature service. Pipe ordered to this specification shall he suitable for bending, flanging (vanstoning), and similar forming operations, and for fusion welding. Selection will depend upon design, service conditions, mechanical properties, and high-temperature characteristics.
1.2 Several grades of ferritic steels (see Note I) are covered. Their compositions are given in Table I.
NOTE I — Ferritic steels in this specification are defined as low- and intermediate-alloy steels containing up to and including 10% chromium.
1.3 Supplementary requirements (SI to S7) of an optional nature are provided. These supplementary requirements call for additional tests to be made, and when desired, shall he so stated in the order together with the number of such tests required.
1.4 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents: therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification. The inch-pound units shall apply unless the ‘M” designation of this specification is specified in the order.
NOTE 2 — The dimensionless designator NPS (nominal pipe size) has been substituted in this standard for such traditional terms as “nominal diameter,”“size,” and “nominal size.”
2. Referenced Documents
2.1 ASTM Standards:
A 999/A 999M Specification for General Requirements for Alloy and Stainless Steel Pipe
NOTE 7 — The term “lot” applies to all pipe of the same nominal size and wall thickness (or schedule) which is produced from the same heat of steel and subjected to the same finishing treatment in a continuous furnace: when final heat treatment is in a batch-type furnace, the lot shall include only that pipe which is heat treated in the same furnace charge.
14.2 Hardness Test:
14.2.1 For pipe of Grades P23. P91, P92, P122, P911, and P36, Brincll, Vickers, or Rockwell hardness tests shall be made on a specimen from each lot (see Note 7).
14.3 Bend Test:
14.3.1 For pipe whose diameter exceeds NPS 25 and whose diameter to wall thickness ratio is 7.0 or less shall he subjected to the bend test instead of the flattening test. Other pipe whose diameter equals or exceeds NPS 10 may be given the bend test in place of the flattening test subject to the approval of the purchaser.
14.3.2 The bend test specimens shall be bent at room temperature through 1800 without cracking on the outside of the bent portion. The inside diameter of the bend shall he 1 in. [25 mm].
14.3.3 Test specimens for the bend test specified in
14.3 shall be cut from one end of the pipe and, unless otherwise specified, shall he taken in a transverse direction. One test specimen shall be taken as close to the outer surface as possible and another from as close to the inner surface as possible. The specimens shall be either by in. [12.5 by 12.5 mm] in section or 1 by in. [25 by 12.5 mm] in section with the corners rounded to a radius not over !46 in. [1.6 mm] and need not exceed 6 in. [150 mm] in length. The side of the samples placed in tension during the bend shall be the side closest to the inner and outer surface of the pipe, respectively.
15. Certification
15.1 In addition to the information required by Specification A 999/A 999M. the certification shall state whether or not the pipe was hydrostatically tested. If the pipe was nondestructively examined, the certification shall so state and shall show which practice was followed and what reference discontinuities were used. In addition, the test method information as given in Table 8 shall he appended to the specification number and grade shown on the certification.
16. Product Marking
16.1 In addition to the marking prescribed in Specification A 999/A 999M, the marking shall include the length.