ASTM E290 - 22
Standard Test Methods for Bend Testing of Material for Ductility
| Aviso: | Las normas ASTM en lectura se visualizan a través del área decliente. Los archivos no se pueden descargar |
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| Fecha edición: |
2022-06-15
En Vigor
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| Idiomas disponibles: | Inglés |
| Resumen: | |
| Keywords: | bend-and-flatten test; bend; crack; ductility; flattened bend; forming limit; fracture; free bend; guided bend; mandrel; pin; plunger; roller; semi-guided bend; |
| Scope: | 1.1 These test methods cover bend testing for ductility of materials. Included in the procedures are four conditions of constraint on the bent portion of the specimen; a guided-bend test using a mandrel or plunger of defined dimensions to force the mid-length of the specimen between two supports separated by a defined space; a semi-guided bend test in which the specimen is bent, while in contact with a mandrel, through a specified angle of bend or to a specified inside radius of bend (r) measured while under the bending force; a free-bend test in which the ends of the specimen are brought toward each other, but in which no transverse force is applied to the bend itself and there is no contact of the concave inside surface of the bend with other material; a bend-and-flatten test, in which a transverse force is applied to the bend such that the legs make contact with each other over the length of the specimen. 1.2 After bending, the convex surface of the bend is examined for evidence of a crack or surface irregularities. If the specimen fractures, the material has failed the test. When complete fracture does not occur, the criterion for failure is the number and size of cracks or surface irregularities visible to the unaided eye occurring on the convex surface of the specimen after bending, as specified by the product specification. Any cracks within one thickness of the edge of the specimen are not considered a bend test failure. Cracks occurring in the corners of the bent portion shall not be considered significant unless they exceed the size specified for corner cracks in the product specification. 1.3 The values stated in SI units are to be regarded as standard. Inch-pound values given in parentheses were used in establishing test parameters and are for information only. 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. |
| ICS: | 77.040.10 - Ensayos mecánicos de metales |
| CTN: | E28.02 - E28.02 |
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Otras Relaciones |
Es referenciada por A0721_A0721M-02R21 Es referenciada por B0272-12R19 Es referenciada por B0169_B0169M-20 Es referenciada por A675/A675M - 14(2025) Es referenciada por A0955_A0955M-20C Es referenciada por A0749_A0749M-14R21 Es referenciada por B1015-20 Es referenciada por F1295 - 24 Es referenciada por C1187-20A Es referenciada por B0209_B0209M-21A Es referenciada por B0265-20A Es referenciada por A0720_A0720M-02R21 Es referenciada por F3273-17R21E01 Es referenciada por A1058-19 Es referenciada por F0136-13R21E01 Es referenciada por F3046-21 Es referenciada por B0551_B0551M-12R21 Es referenciada por F3160-21 Es referenciada por F1472-23 Es referenciada por F2066-23 |
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