This standard is issued under the fixed designation A 53/A 53M; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon (e) indicates an editorial change since the last revision or reapproval. This standard has been approved for use by agencies of the Department of Defense. | Designation A 53 A 53M - 01 An American National Standard Standard Specification for Pipe Steel Black and Hot-Dipped Zinc-Coated Welded and seamless1 This standard is issued under the fixed designation. A 53 A 53M the number immediately f llc Wr ig the designation indicates the year of original adoption or in the case of revision the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon e indicates an editorial change since the last revision or reapproval. This standard has been approved for use by agencies of the Department of Defense. 1. Scope This specification2 covers seamless and welded black and hot-dipped galvanized steel pipe in NPS Vs to NPS 26 DN 6 to DN 650 Note 1 inclusive with nominal wall thickness Note 2 as given in Table and Table . It shall be permissible to furnish pipe having other dimensions Note 2 provided such pipe complies with all other requirements of this specification. Note 1 The dimensionless designaon s NTS iiwmiid pipe size DN diameter nominal have been substituted in this specd ieadon l o ss K li traditional terms as nominal diameter. siee. alld 01onlilla size. Note 2 The eerm nominal wall tliielmess has been assigned o r the purpose of convenient designation existing in name only and is used to distinguish it from the actual wall thickness which may vary over or under the nominal wall thickness. This speci n covers tin foHowing ttyocs and grades Type F Furnacc-buU welded conimuous welded Grade A Type E Elcctsic-scsistancc wedded. Grades A and B and Type S Seamtess Grades A and B. Note 3 See Appendix X1 o r definitions of types of pipe. Pipe ordered under this specification is imended for mechanical and pressure applications and is also acceptable for ordinary uses in steam water gas and air lines. It is suitable for welding and suitable for forming operations involving coiling bending and llanghig. subject to the foHowrng quaii- cations
