ASTM A632 - 04(2014)

    Standard Specification for Seamless and Welded Austenitic Stainless Steel Tubing (Small-Diameter) for General Service

    Active Standard ASTM A632 | Developed by Subcommittee: A01.10

    Book of Standards Volume: 01.01


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    Abstract

    The specification covers grades of stainless steel tubing for general corrosion-resisting and low or high-temperature service. The tubes shall be cold finished and shall be made by the seamless or welded process. All material shall be furnished in the heat-treated condition. The heat-treatment procedure shall consist of heating the material and quenching in water or rapidly cooling by other means. Tension tests, flaring tests, hydrostatic tests, air underwater pressure tests, and nondestructive electric tests shall be performed in accordance to the specified requirements.

    This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

    1. Scope

    1.1 This specification covers grades of stainless steel tubing in sizes under 1/2 down to 0.050 in. (12.7 to 1.27 mm) in outside diameter and wall thicknesses less than 0.065 in. down to 0.005 in. (1.65 to 0.13 mm) for general corrosion-resisting and low- or high-temperature service, as designated in Table 1.

    Note 1: The grades of austenitic stainless steel tubing furnished in accordance with this specification have been found suitable for low-temperature service down to −325°F (−200°C) in which Charpy notched-bar impact values of 15 ft·lbf (20 J), minimum, are required and these grades need not be impact tested.

    (A) New designation established in accordance with Practice E527 and SAE J 1086, Practice for Numbering Metals and Alloys (UNS).
    (B) For seamless TP316L tubes, the silicon maximum shall be 1.00 %.
    (C) For welded TP 316 tubes, the nickel range shall be 10.0–14.0 %.
    (D) Grade TP 321 shall have a titanium content of not less than five times the carbon content and not more than 0.60 %.
    (E) Grades TP 347 and TP 348 shall have a columbium plus tantalum content of not less than ten times the carbon content and not more than 1.0 %.

    1.2 Optional supplementary requirements are provided and, when desired, shall be so stated in the order.

    1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    A262 Practices for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels

    A380 Practice for Cleaning, Descaling, and Passivation of Stainless Steel Parts, Equipment, and Systems

    E165 Practice for Liquid Penetrant Examination for General Industry

    E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)

    SAE Standard

    SAEJ1086 Practice for Numbering Metals and Alloys (UNS) Available from SAE International (SAE), 400 Commonwealth Dr., Warrendale, PA 15096-0001, http://www.sae.org.


    ICS Code

    ICS Number Code 23.040.10 (Iron and steel pipes); 23.040.40 (Metal fittings)

    UNSPSC Code

    UNSPSC Code 40181900(Welded stainless steel tubes); 31351209(Welded stainless steel tubes); 40182400(Seamless stainless steel tubesĀ )


    Referencing This Standard

    DOI: 10.1520/A0632-04R14

    ASTM International is a member of CrossRef.

    Citation Format

    ASTM A632-04(2014), Standard Specification for Seamless and Welded Austenitic Stainless Steel Tubing (Small-Diameter) for General Service, ASTM International, West Conshohocken, PA, 2014, www.astm.org

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