ISO 16172:2018

This document is applicable to the minimum requirements for steel sheet used in the manufacture of corrugated steel pipe, in coils, flat cut lengths and corrugated cut lengths metallic-coated by the continuous hot-dip process.
This product is intended for storm sewers, culverts, drains and similar uses.
Several metallic-coated materials are covered, which relies on users to determine which product best serves their needs. Four different metallic coatings are included:
-  zinc coated;
-  zinc-5 % aluminium-mischmetal alloy coated;
-  55 % aluminium-zinc alloy coated;
-  aluminium-silicon alloy coated.