Skip to Main Content
ASM Handbook

Corrosion: Environments and Industries

Edited by
Stephen D. Cramer
Stephen D. Cramer
Search for other works by this author on:
Bernard S. Covino, Jr.
Bernard S. Covino, Jr.
Search for other works by this author on:
ASM International
Volume
13C
ISBN electronic:
978-1-62708-184-9
Publication date:
2006
Book Chapter

Rouging of Stainless Steel in High-Purity Water

By
John C. Tverberg
John C. Tverberg
Metals and Materials Consulting Engineers
Search for other works by this author on:
Published:
2006
Page range:
15 - 22
Publication history
September 14, 2006

Abstract

Materials of construction for equipment and piping in pharmaceutical processing plants must be resistant to corrosion from the high-purity water, the buffer solutions used in preparation of the products, and the cleaning solutions used to maintain the purity of the product. The primary water used in pharmaceutical production is water for injection (WFI). This article presents the steps for preparing WFI and discusses the effect of chlorides on stainless steel. It provides information on passive layer of stainless steels and chromium-containing nickel alloys. The article illustrates the surface finish of pharmaceutical equipment. Rouge is iron oxide, and its different colors result from different valences and degrees of hydration. The article discusses the classification of rouge and the characteristics of cast type 316L stainless steel. It explains how and when to perform cleaning and repassivation process on classes of rouge.

You do not currently have access to this content.
Don't already have an account? Register

John C. Tverberg, 2006. "Rouging of Stainless Steel in High-Purity Water", Corrosion: Environments and Industries, Stephen D. Cramer, Bernard S. Covino, Jr.

Download citation file:


×
Close Modal
This Feature Is Available To Subscribers Only

Sign In or Create an Account

Close Modal
Close Modal