BS EN ISO 3651-2 PDF

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ISO 3651-2-1998(E)-Character PDF Document

Accept and continue Learn more about the cookies we use and how to change your settings. The retained surface shall form the convex side of the test piece after bending.

Your basket is empty. Each member bodyinterested in a subject for which a technical committee has beenestablished has the right to be represented on that committee.

Corrosion test in media containing sulfuric acid Status: Thetest pieces shall be in metallic contact with the copper but not with each other. Ferritic, austenitic and ferritic-austenitic duplex stainless steels.

The test piece shall be bent to at least 90 over a mandrel with a radius not exceeding ba thickness ofthe test piece.

BS EN ISO 3651-2:1998

The test solution shall not be used more than once. If it is questionnable whether intergranular corrosion is the cause of the cracking, a 90 bend test or aflattening test shall be carried out on a second test piece prepared in a similar way but without havingbeen lso to the corrosion test. Tubes with up to 60 mm outside diameter shall be subject to a flattening test.


It also specifies the purposes which may be assigned to the test. Dstu en iso 2 Business. The test methods included are: ISO consists of the following parts, under the general titleDetermination of resistance to intergranular corrosion of stainlesssteels: The appearance ofdeformation lines, wrinkles, or “orange peel” on the surface, without accompanying cracks or fissures,should also be disregarded.

Over-heating of the test piece shall be avoided.

The methods are enn to stainless steels supplied in the form of cast, rolled or forged productsand tubes and intended for use in a mildly oxidizing acid medium for example, sulfuric acid, phosphoricacid. The test pieces are firstlyimmersed in the cold test solution following which the solution is brought hs the boil, from which pointonwards the test duration commences. In the case of the chemical preparation, it shall be necessary to ensure in advance that intergranularcorrosion does not occur due to the preparation.

Austenitic and ferritic-austenitic duplex stainless steels Corrosion test in nitric acid medium by measurement of lossin mass Huey test Part 2: In case ofdispute, the duration of the test shall be 20 h.

You may experience issues viewing this site in Internet Explorer 9, 10 or Thefollowing examples are given as information. It is to be noted, however, that the weight loss will not measure 361-2 corrosion only but also any general corrosion occuring. The 3561-2 shall be used only once. Note that more than one method may be applicable for aspecific steel grade. It is necessary for the user to adapt the specifiedcorrosion test to the use which will be made of the alloy. Ferritic, austenitic and ferritic-austenitic duplex stainless steels Jso testin media containing sulfuric acidDtermination de la rsistance la corrosion intergranulaire des aciersinoxydables Partie 2: Search all products by.


It constitutes a basis for estimating the resistance to intergranular corrosion but may not be used to check resistance toother forms of corrosion general corrosion, pitting, stress corrosion, etc. NOTE When an evaluation is questionable a metallographic examination of a longitudinal cross section of the test piecemay be used to detect the presence of intergranular corrosion and to measure the depth of penetration. For welded tubes with outer diameter over be mm, the test pieces with length of bw least 50 mm andwidth of at least 20 mm are prepared as shown in figure 4.

ISO (E)-Character PDF Document

The test pieces are embedded in electrical gradecopper filings on the bottom of the flask. NOTE A determination of the weight loss may be used as a complement to 3651–2 bend test or the flattening test for tubeswith up to 60 mm outside diameter according izo 5.

This heat cycle,which may provoke sensitization to intergranular corrosion, mayoccur during hot-forming forging, rolling as the result of incorrectsolution treatment or during a welding operation. Take the smart route to manage medical device compliance.

Unless otherwise stated on the order,the method of preparation shall be left to the manufacturer and shall be recorded in the test report.