Every industry, application, and product has unique specification requirements including specialty testing and nde. The astm a262 specification covers the standard practices for detecting susceptibility to intergranular attack in austenitic stainless steels. Note that practices a262 requires the test to be performed on sensitized specimens in the low. A26214 standard practices for detecting susceptibility to intergranular attack in austenitic stainless steels, 2014 you currently cannot view this content.
Manufacturer of andstainless ornamental structural tubing. For annual book of astm standards volume information, refer to the standards document summary page on the astm website. Active standard astm a262 developed by subcommittee. This test is particularly useful in production control of exfoliation resistant heat treatments for the 2000, 5000, and 7000 series aluminum alloys. Astm a262 standard practices for detecting susceptibility to intergranular attack in austenitic stainless steels. A detailed study of aisi and stainless steels sss has been conducted to correlate the degree of sensitization dos measured by the. The samemeasurements can be achieved using image analysis per practice e1245. As soon as the transaction is completed, your astm standards subscription will be ready for access. Once the specimen has been subjected to the solution boil, it is bent through 180. Astm a 262 test, intergranular corrosion, igc, astm a262 practice. Intergranular corrosion testing of austenitic stainless steels in.
A26214 standard practices for detecting susceptibility to. The weld zone of both the stainless steels suffered from cracking during astm a262 practice e, while the parent metals and hazs did not show such fissures. Standard practices for detecting susceptibility to intergranular attack. If two samples are polished for testing using one as a control sample. Corrosion performance and fabricability of the new gen. Purchase your copy of astm a262 15 as a pdf download or hard copy directly from the official bsi shop. G2mt labs metallurgy, corrosion, and failure analysis experts. Strauss test specimens are boiled in a copper sulfate sulfuric acid mixture for 15 hours. Determination of susceptibility to intergranular corrosion.
Intergranular corrosion behavior of 304ln stainless steel. Bend test was used as a criterion to categorise the dos, which was then correlated to values of epr parameters and ec amplitude. Corrosion testing techniques and evaluation practices used in industry. Use of eddy current testing method in detection and evaluation of sensitisation and intergranular corrosion in austenitic stainless steels. There is no pdf download available at this time, however you may purchase a copy. Unitsthe values stated in inchpound units are to be regarded as standard. Corrosion testing techniques and evaluation practices used. Plymouth offers our customers the industrys most current testing options and can even work with you on complex applications to determine exactly what testing should be required. Nautic steels uk kobe, nssmc, sanyo japan posco korea schoeller bleckmann austria.
For comparison, 304l ss, which is currently used in reprocessing plants, was also studied. The manufacturer is not required to run the test unless it is specified on the purchase order see supplementary requirement s7. Duplex stainless steel welds and their susceptibility to. A262 14 standard practices for detecting susceptibility to intergranular attack in austenitic stainless steels, austenitic stainless steel, copper sulfate, corrosion testing, etch structures, ferric sulfate, intergranular corrosion, nitric acid, oxalic acid. The al6xn alloy was designed to be a seawater resistant material and. Astm a262 01 standard practices for detecting susceptibility to. Astm international, formerly known as the american society for testing and materials astm, is a globally recognized leader in the development and delivery of international voluntary consensus standards. In hot strong nitric acid solutions, stainless steels exhibit intergranular corrosion.
These practices include five intergranular corrosion tests, namely. Astm a262 practice a, b, c, e and f intergranular corrosion testing. All bsi british standards available online in electronic and print formats. United states provided by ihs under license with astm 1 sold to. The use of astm a262 practice a and e tests indicated sensitisation in base metal aged for 20 h and above. Modified astm a262 standard practices ecoppercopper sulfate, sulfuric acid test for detecting susceptibility. The higher alloyed materials 22, c2000, 59 and 686 have sufficient.
Practice e exposure of aged stainless steel led to dissolution of the crdepleted regions. A262 98 standard practices for detecting susceptibility to intergranular attack in austenitic stainless steels, austenitic steelstainless steel, copper sulfate, corrosion testing, etch structures, ferric sulfate, intergranular corrosion, nitric acid, oxalic acid. Us steel usa tubos spain vallourec tubes germany, france, brazil. This means that there is very little risk of carbide precipitation during heating, for example when welding. Strauss test astm a262 practice e this test is used exclusively to determine corrosion in areas high in chromium carbide formations, and is not as effective for intergranular attack caused by other means. Exceeding your expectations with quality, service and delivery. This practice covers the examination of tubular products ranging in diameter from 0.
Astm a312 stainless steel tube shall be furnished in heat treatment condition comply to. Corrosion performance and fabricability of the new generation of highly corrosionresistant. The moneypennystrauss test is also known as the strauss test, and has classifications. To date research has been conducted primarily on the parent material and heat affected zones in. A26215 standard practices for detecting susceptibility to intergranular attack in austenitic stainless steels corrosion susceptibility copper sulfatesulfuric acid test nitric acid test oxalic acid etch test ferric sulfatesulfuric acid test. Modified astm a262 standard practices ecoppercopper sulfate sulfuric acid test for detecting susceptibility to intergranular attack was used. Sensitization and intergranular corrosion behavior of high. Astm a262 practice e and electrochemical reactivation test method was shown by novak et al. Intergranular corrosion and residual stress determination of a duplex stainless steel pipeline girth weld b gideon1. This test is used exclusively to determine corrosion in areas high in chromium carbide formations, and is. Astm a262, practice e is a common test for intergranular corrosion igc. The nitric acidhydrofluoric acid test of a262, practice d, the acidified copper sulfate test of a708, and the 24hour copper accelerated, acidified copper sulfate test in a262, practice e, are also applicable to ati 20 alloy in the annealed and annealed plus sensitized condition.
Standard practices for detecting susceptibility to. Pdf assessment of intergranular corrosion in aisi type 316l. One of the two samples is boiled in a copper copper sulfate sulfuric acid solution for a specified period of time while the other. Astma262 standard practices for detecting susceptibility to intergranular attack in austenitic stainless steels. Pdf assessment of intergranular corrosion in aisi type. The specimen was covered with copper shot and grindings and immersed in a solution of 16 wt% sulfuric acid with 6 wt% copper sulfate. Astm international, 100 barr harbor drive, po box c700, west conshohocken, pa, 194282959 usa.
Classification of the structure after a262 practice a analysis will determine if the material is acceptable or if additional testing is required. The first and fastest step is the astm a262 practice a, a rapid sameday screening method in oxalic acid to determine the susceptibility to intergranular corrosion. Astm a262 intergranular corrosion testing and analysis. Determination of susceptibility to intergranular corrosion and electrochemical reactivation behaviour of aisi 316l type stainless steel g. The first method devised by us exploits the large shortterm difference in weight loss. Alternate immersion corrosion testing per the astm g 44 standard practice. The results of astm a262 practice a and practice e bend tests on aged type 316 stainless steel are detailed in table 2. Astm a262 practice aoxalic acid etch test astm a262 practice bferric sulfatesulfuric acid test astm a262 practice cnitric acid test astm a262 practice ecoppercopper sulfatesulfuric acid test practical demonstration of testing of stainless steel material. Mechanical testing metallurgical testing chemical analysis. Access astm standards from any browser on your computer, tablet or smart phone. Astm a262 practice e strauss test this procedure is conducted to determine the susceptibility of austenitic stainless steel to inter granular attack associated with the precipitation of chromiumrich carbides.
Astm a test, intergranular corrosion, igc, astm a practice, copper copper sulfate 16% sulfuric acid, astm a practice e strauss test. Use of eddy current testing method in detection and. Assessment of intergranular corrosion in aisi type 316l stainless steel weldments. This specification covers the standard practices for detecting susceptibility to intergranular attack in austenitic stainless steels. The moneypennystrauss test heat treats the sample in the sensitizing temperature range in order to determine the materials resistance to intergranular corrosion. Today, some,000 astm standards are used around the world to improve product quality, enhance safety, facilitate market access and trade. Detecting susceptibility to intergranular attack in austenitic stainless steels sections 8 to 14, inclusive, 1. Astm e426 standard practice for electromagnetic eddy. Astm international by sections and volumes section 1. What is astm a262 intergranular corrosion test igc china.
Astm a262 practice a and practice e stainless steels. The use of astm a262 practice a and e tests indicated sensitisation in. The etch structure types used to classify the specimens are. A similar trend of degree of sensitization was observed in the haz where it was higher in the 304ln1 as compared to the 304ln2.