BS EN ISO 3651-2 PDF

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Ferritic, austenitic and ferritic-austenitic duplex stainless steels Corrosion testin media containing sulfuric acidDtermination de la rsistance la corrosion intergranulaire des aciersinoxydables Partie 2: Annex A gives examples of application of the three methods on stainless steels. For welded tubes up to 60 mm outside diameter, the test piece shall be a full cross section of the tubeand will be subject to a flattening test see 6. Note that more than one method may be applicable for aspecific steel grade.

For cast products, the radius of the mandrel shall be no more than twice the thickness ofthe test piece. For welded tubes with outer diameter over 60 mm, the test pieces with length of at least 50 mm andwidth of at least 20 mm are prepared as shown in figure 4.

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

The distance between theplatens after flattening, measured under load, shall be no greater than the following value, H, inmillimetres: Thefollowing examples are given as information. You may experience issues viewing this site in Internet Explorer 9, 10 or The test piece shall be bent to at least 90 over a mandrel with bss radius not exceeding the thickness ofthe test piece.

The solution shall be maintained at boiling during 20 h 5 h. The test pieces are firstlyimmersed in the cold test solution following which the solution is brought to the boil, from which pointonwards the test duration commences. The faster, easier way to work with standards. 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.

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Determination of resistance to intergranular corrosion of stainless steels. It also specifies the purposes which may be assigned to the test. You may find similar items within these categories by selecting from the choices below:.

Incase of dispute, the duration of the test shall be 20 h.

ISO (E)-Character PDF Document

We use cookies to make our website easier to use and to better understand your needs. Search all products by. The appearance ofdeformation lines, wrinkles, or “orange peel” on the surface, without accompanying cracks or fissures,should also be disregarded.

In the case of the chemical preparation, it shall be necessary to ensure in advance that intergranularcorrosion does not occur due to the preparation. The test pieces are firstly immersed in the coldtest solution following which the solution is brought to the boil, from which point onwards the testduration commences.

The solution shall be maintained at boiling 20 h 5 h. The test solution shall not be used more than once. 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.

Ferritic, austenitic and ferritic-austenitic duplex stainlesssteels Corrosion test in media containing sulfuric acidAnnexes A and B of this part of ISO are for information only. The test methods included are: NOTE In the field of application of this test, intergranular corrosion may beconnected with the presence along the grain boundaries of a chromium-depletedregion due to precipitation of chromium carbides, sigma phase or otherintermetallic phases.

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Essais de corrosion en milieux contenant de l’acide sulfurique. Ferritic, austenitic and ferritic-austenitic duplex stainless steelsmay be subject to such an attack when they are held at atemperature between about C and 1 C. Nichtrostende ferritische, austenitische und ferritisch-austenitische Duplex- Staehle Korrosionsversuch in schwefelsaeurehaltigen Ne.

This second edition cancels and replaces the first edition ISO The corrosivesolution isk be used only once. The retained surface shall form the convex side of the test piece after bending. St rk iso Education. Unless specified in the product standard, the method to be used, A, B or C, shall form the subject of anagreement between the interested parties.

The test pieces are embedded in electrical gradecopper filings on the bottom of the flask. Tubes with up to 60 mm outside diameter shall be subject to a flattening test.

Dstu en iso 2 Business. The corrosivesolution may be used more than once 36551-2 it is not fn and that its density has not changed.

Aciers inoxydables ferritiques, austnitiques et austno-ferritiques duplex Essais de corrosion en milieux contenant de l’acide sulfurique JSA Web Store order No.

Dstu iso 1 Business.

NOTE It is important to note that the result of the corrosion test is only strictly valid for the corrosive medium used in thetest. Over-heating of the test piece shall be avoided. In case of dispute,the duration of the test shall be 20 h.

Ermittlung der Bestaendigkeit nichtrostender Ios gegen interkristalline Korrosion. Worldwide Standards We can source any standard from anywhere in the world. This should be achieved by micro examination ofsamples of each steel grade tested.