AASHTO M 274-87 (2017)

AASHTO M 274-87 (2017) Standard Specification for Steel Sheet, Aluminum-Coated (Type 2), for Corrugated Steel Pipe

standard by American Association of State and Highway Transportation Officials, 1987

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This specification covers steel sheet used in the fabrication of corrugated steel pipe (CSP) used for drainage pipe and underdrains. The steel sheet is coated with commercially pure aluminum (referred to as Type 2) on continuous lines by the hot-dip process, and is produced in one coating mass only. The material is furnished flat in coils and cut lengths, and corrugated in cut lengths.