Corrugated Steel Pipe, Metallic-Coated for Sewers and Drains

A760/A760M-15: Standard Specification for Corrugated Steel Pipe, Metallic-Coated for Sewers and Drains

When designing and specifying essential infrastructure for storm water management, civil engineers and project managers rely on authoritative standards to ensure material performance and longevity. ASTM A760/A760M-15 provides the industry-leading benchmark for metallic-coated corrugated steel pipe, a proven and cost-effective solution for a wide range of drainage applications. Understanding this comprehensive standard is crucial for delivering robust and reliable underground drainage systems.

What is A760/A760M-15?

ASTM A760/A760M-15 is an established engineering standard that defines the requirements for corrugated steel pipe designed for storm water drainage, agricultural underdrains, and culvert construction. Originating from ASTM International, this specification ensures that the steel pipe, protected by various metallic coatings, meets stringent performance criteria for its intended use in buried applications.

Scope & Purpose

This industry-leading standard governs the fabrication and material properties of corrugated steel pipe intended for non-pressure applications like storm sewers and culverts. It specifically covers pipe manufactured from steel sheet with metallic coatings such as zinc, aluminum, 55% aluminum-zinc, or zinc-5% aluminum-mischmetal alloy. The standard does not cover pipe for sanitary or industrial waste conveyance, nor does it address installation specifics like bedding, backfill, or the direct relationship between earth cover load and sheet thickness, which are detailed in other practices.

Who Must Comply?

• • Primary audience: Civil Engineers, Structural Engineers, Project Managers, Quality Control Inspectors, and Procurement Specialists involved in public works and infrastructure projects.
• • Industries affected: Construction, Civil Engineering, Municipalities, Transportation, and Agriculture.
• • Compliance nature: Typically voluntary, but becomes mandatory when specified in project bid documents or contractual agreements.
• • Enforcement: Compliance is usually verified by project owners, engineers of record, or third-party inspection agencies during material procurement and installation.

Key Requirements Overview

The standard requires manufacturers to adhere to specific criteria for the metallic coatings applied to the steel sheet used in pipe fabrication. Professionals must ensure that the selected pipe type, whether circular, pipe-arch, smooth-lined, or perforated, aligns with the project's functional requirements. Key provisions include specifying the type and weight of metallic coating to meet anticipated service conditions, defining acceptable corrugation patterns and dimensions, and outlining requirements for pipe joints to ensure structural integrity. The standard also addresses material traceability and testing to confirm compliance with specified coating properties and base metal characteristics.

Related Standards & References

ASTM A760/A760M-15 is often used in conjunction with ASTM A796/A796M, "Practice for Structural Design of Corrugated Steel Pipe, Pipe-Arches, and Arches for Storm and Sanitary Sewers and Other Buried Applications," which provides guidance on structural design considerations. For installation, ASTM A798/A798M, "Practice for Installing Factory-Made Corrugated Steel Pipe for Sewers and Other Applications," is essential. Additionally, standards like ASTM A90/A90M and ASTM A428/A428M may be