Procurement, supplier qualification and logistics · Lesson 4 of 4

Procurement, supplier qualification and logistics: defects, verification and case study

Storage stain, fretting marks and strap damage, what to do first with a wet bundle, the evidence packet, the notice and claim clocks, and a case study of a bundle that arrives wet.

You will be able to: Tell storage stain from fretting marks and strap damage, say what to do first with a wet bundle, assemble the evidence packet, and name the notice and claim clocks.

11 min · 11 slides · 8 questions

All lessons in this module

Slide 1 of 11

Three receiving defects

Three defects turn up at receiving: storage stain, black fretting marks, and strap or edge damage.

Storage stain is usually white and is often called white rust; it can also be grey or black.

Strap damage is a mark or cut where a tiedown pressed on an edge. Each one calls for a different record.

Sources

GalvInfoNote 3.2 Protecting Galvanized Steel Sheet Products from Storage Stain (Rev 2.1, Dec 2017) - GalvInfo Center, International Zinc Association
GalvInfoNote 6.1 Successfully Shipping and Storing Galvanized Steel Sheet (Rev 1.0, Dec 2017) - GalvInfo Center, International Zinc Association
49 CFR 393.104 Standards for cargo securement devices (Title 49 vol 5, Oct 1 2024) - U.S. Government Publishing Office (Code of Federal Regulations)

Glossary

Fretting corrosion: Black marks, lines or patches on galvanized sheet caused by vibration or repeated motion between surfaces under load. GalvInfo says it is never seen at the production line.
Freight claim: A written demand to a carrier that identifies the shipment, asserts liability and asks for a specified or determinable amount of money. A bad-order note alone is not a claim.
Rejection: A buyer refusing goods after delivery. Under the uniform text it must be within a reasonable time after delivery, with timely notice to the seller.
White rust: Another name for storage stain on galvanized sheet: a corrosion product, usually white, formed when sheets in close contact get wet and cannot dry. It means actual loss of zinc coating.