_STP_656-1978.pdf

INTERGRANULAR CORROSION OF STAINLESS ALLOYS A symposium sponsored by ASTM Committee A-l on Steel,Stainless Steel,and Related Alloys and Committee G-l on Corrosion of Metals AMERICAN SOCIETY FOR TESTING AND MATERIALS Toronto,Canada,2,3 May 1977 ASTM SPECIAL TECHNICAL PUBLICATION 656 R.F.Steigerwald Climax Molybdenum Co.editor List price$24.00 04-656000-27 AMERICAN SOCIETY FOR TESTING AND MATERIALS 1916 Race Street,Philadelphia,Pa.19103 Copyright by ASTM Intl(all rights reserved);Sun Dec 27 13:24:30 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Copyright by AMERICAN SOCIETY FOR TESTING AND MATERIALS 1978 Library of Congress Catalog Card Number:78-55317 NOTE The Society is not responsible,as a body,for the statements and opinions advanced in this pubHcation.Printed in Baltimore,Md.October 1978 Copyright by ASTM Intl(all rights reserved);Sun Dec 27 13:24:30 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Foreword This publication,Intergranular Corrosion of Stainless Alloys,contains papers presented at the Symposium on Evaluation Criteria for Determin-ing the Susceptibility of Stainless Steels to Intergranular Corrosion which was held in Toronto,Canada,2-3 May 1977.The symposium was sponsored by Committee A-1 on Steel,Stainless Steel,and Related Alloys and G-1 on Corrosion of Metals,American Society for Testing and Materials.R.F.Steigerwald,Climax Molybdenum Company,presided as symposium chair-man and editor of this publication.Copyright by ASTM Intl(all rights reserved);Sun Dec 27 13:24:30 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Related ASTM Publications Localized CorrosionCause of Metal Failure,STP 516(1972),$22.50,04-516000-27 Galvanic and Pitting CorrosionField and Laboratory Studies,STP 576(1976),$29.75,04-576000-27 Stress CorrosionNew Approaches,STP 610(1976),$43.00,04-610000-27 Structure,Constitution,and General Characteristics of Wrought Ferritic Stainless Steels,STP 619(1977),$7.50,04-619000-02 Copyright by ASTM Intl(all rights reserved);Sun Dec 27 13:24:30 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.A Note of Appreciation to Reviewers This publication is made possible by the authors and,also,the un-heralded efforts of the reviewers.This body of technical experts whose dedication,sacrifice of time and effort,and collective wisdom in reviewing the papers must be acknowledged.The quality level of ASTM publications is a direct function of their respected opinions.On behalf of ASTM we acknowledge with appreciation their contribution.ASTM Committee on Publications Copyright by ASTM Intl(all rights reserved);Sun Dec 27 13:24:30 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Editorial Staff Jane B.Wheeler,Managing Editor Helen M.Hoersch,Associate Editor Ellen J.McGlinchey,Senior Assistant Editor Helen Mahy,Assistant Editor Copyright by ASTM Intl(all rights reserved);Sun Dec 27 13:24:30 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Contents Introduction 1 Theory and Application of Evaluation Tests for Detecting Susceptibility to Intergranular Attack in Stainless Steels and Related Alloys Problems and OpportunitiesM.A.STREICHER 3 Intergranular Corrosion in Nuclear SystemsA.TOBOADA AND L.FRANK 85 Comparative Methods for Measuring Degree of Sensitization in Stainless Steelw.L.CLARKE,R.L.COWAN,AND W.L.WALKER 99 Detecting Susceptibility to Intergranular Corrosion of Stainless Steel Weld Heat-Affected ZonesB.VYAS AND H.S.ISAACS 133 Variations in the Evaluation of ASTM A 262,Practice E,Results(ASTM Subcommittee A01.14 Round Robin)w.L.WALKER 146 Niobium and Titanium Requirements for Stabilization of Ferritic Stainless SteelsH.J.DUNDAS AND A.P.BOND 154 Intergranular Corrosion Testing and Sensitization of Two High-Chromium Ferritic Stainless SteelsT.J.NICHOL AND I.A.DAVIS 179 Detection of Susceptibility of Alloy 26-lS to Intergranular Attack A.J.SWEET 197 Intergranular Corrosion in 12 Percent Chromium Ferritic Stainless SteelsR.A.LULA AND J.A.DAVIS 233 Summary 248 Index 255 Copyright by ASTM Intl(all rights reserved);Sun Dec 27 13:24:30 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.STP656-EB/Oct.1978 Introduction In June 1949,ASTM Committee A-10(now Committee A-1 on Steel,Stainless Steel and Related Alloys)sponsored a Symposium on Evaluation Tests for Stainless Steels ASTM STP 93).At that time,only one test,the boiling 65 percent nitric