ASTM-A760 › Standard Specification for Corrugated Steel Pipe, Metallic-Coated for Sewers and Drains
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This specification covers the standard requirements for corrugated, metallic-coated steel pipes intended for use in sewers, storm water drainage, underdrains, culverts construction, and similar other uses. These pipes are not normally used for the conveyance of sanitary or industrial wastes. This specification however does not include requirements for bedding, backfill, or the relationship between earth cover load and sheet thickness of the pipe. The steel sheet used for the pipes, coupling bands, and steel inserts shall be formed from zinc-coated sheet, aluminum-coated sheet, aluminum-zinc alloy-coated sheet, zinc-aluminum-mischmetal alloy-coated sheet, or zinc and aramid fiber composite coated sheet. The rivets used in riveted pipes shall be of the same material as the base metal specified for the corrugated sheets and shall be thoroughly galvanized or sherardized. Bolts, nuts, and other threaded items used with joining systems shall be zinc coated by hot dip processing, electroplating, or mechanical processing. The pipes shall be fabricated in full circular cross section with either annular or helical corrugations while the seams shall be spot welded in such a manner that they will develop the full strength of the pipe and not affect the shape or nominal diameter of the pipe. A rational analysis or a suitable physical test shall be performed to determine the specified structural properties of the joining systems such as shear, moment, and tensile strengths.
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1.1 This specification covers corrugated steel pipe intended for use for storm water drainage, underdrains, the construction of culverts, and similar uses. Pipe covered by this specification is not normally used for the conveyance of sanitary or industrial wastes. The steel sheet used in fabrication of the pipe has a protective metallic coating of zinc (galvanizing), aluminum, 55 % aluminum-zinc alloy, or zinc-5 % aluminum-mischmetal alloy.
1.2 The several different metallic coatings may not provide equal protection of the base metal against corrosion or abrasion in all environments, or both. Some environments may be so severe that none of the metallic coatings included in this specification will provide adequate protection. Additional protection for corrugated steel pipe can be provided by use of coatings applied after fabrication of the pipe as described in Specification , or by use of polymer precoated corrugated steel pipe as described in Specification .
1.3 Section is intended to be applied to corrugated steel pipe joints. The several different types of corrugated steel pipe joints provide various qualities. This specification is not intended for routine quality control testing or in-field acceptance testing, but is intended to establish performance limits of the pipe joints, as well as the test requirements and test methods for the joints as described herein.
1.4 This specification does not include requirements for bedding, backfill, or the relationship between earth cover load and sheet thickness of the pipe. Experience has shown that the successful performance of this product depends upon the proper selection of sheet thickness, type of bedding and backfill, controlled manufacture in the plant, and care in the installation. The installation procedure is described in Practice .
1.5 This specification is applicable to orders in either inch-pound units as or in SI units as . Inch-pound units and SI units are not necessarily equivalent. SI units are shown in brackets in the text for clarity, but they are the applicable values when the material is ordered to .
corrugated steel pipe; drainage pipe; hydrostatic testing; leak resistant joints; metallic coated pipe; qualification testing; sewer pipe; water tight joints;; ICS Number Code 23.040.10 (Iron and steel pipes)
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May 15, 2015