Standard Specification for Pipe, Steel, Hot-Dipped Zinc-Coated (Galvanized) Welded, for Fence Structures
This specification covers hot-dipped zinc-coated (galvanized) welded steel pipe in NPS 1, NPS 1 ¼, NPS 1 ½, NPS 2, NPS 2 ½, NPS 3, NPS3 ½, NPS 4, NPS 5, NPS 6, NPS 7, and NPS 8, with the specified nominal wall thickness, intended for fence structures such as structural support. Pipe having other dimensions may be furnished provided such pipe complies with all other requirements of this specification. The steel for welded pipe shall be be of soft weldable quality and shall be made by one or more of the following processes: electric-furnace, open hearth, or basic oxygen. Welded pipe NPS 4 and under may be butt-welded. Welded pipe over NPS 4 shall be electric welded. Pipe shall be coated with zinc inside and outside by hot-dip process. The steel pipe shall meet the tensile requirements for tensile strength and yield strength specified for regular, intermediate strength, and high strength grades. The weight of zinc coating shall be determined by strip test. The dimensional (diameter and thickness) and weight requirements for the steel pipe are specified and the test requirements for welded pipes are detailed. Lengths of toprail may be of random lengths, unless otherwise specified.
1.1 This specification covers hot-dipped galvanized welded steel pipe in sizes ranging from 1.315–8.625 in. (33.4 –219.1 mm) outside diameter (OD) inclusive, with nominal (average) wall thickness as given in Table 1 and Table 2. Pipe having other dimensions (Note 2) may be furnished provided such pipe complies with all other requirements of this specification. Pipe ordered under this specification is intended for use as a structural support for fencing in accordance with Specification F1043, Group 1A.
Note 1: Outside diameter size is designated in that fence fittings are designed to securely fit on the outside of the pipe framework.
Note 2: A comprehensive listing of standardized pipe dimensions is contained in ANSI B 36.10.
1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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