ASTM E381 - 22
Standard Method of Macroetch Testing Steel Bars, Billets, Blooms, and Forgings
| Aviso: | Las normas ASTM en lectura se visualizan a través del área decliente. Los archivos no se pueden descargar |
|---|---|
| Fecha edición: |
2022-06-01
En Vigor
|
| Idiomas disponibles: | Inglés |
| Resumen: | |
| Keywords: | bars; billets; blooms; bottom-poured ingots; continuous casting; forgings; homogeneity; ingots; macroetch; macrostructure; quality control; steel; sulfur printing ; |
| Scope: | 1.1 Macroetching, which is the etching of specimens for macrostructural examination at low magnifications, is a frequently used technique for evaluating steel products such as bars, billets, blooms, and forgings. 1.2 Included in this method is a procedure for rating steel specimens by a graded series of photographs showing the incidence of certain conditions. The method is limited in application to bars, billets, blooms, and forgings of carbon and low alloy steels. 1.3 A number of different etching reagents may be used depending upon the type of examination to be made. Steels react differently to etching reagents because of variations in chemical composition, method of manufacture, heat treatment and many other variables. Establishment of general standards for acceptance or rejection for all conditions is impractical as some conditions must be considered relative to the part in which it occurs. 1.4 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard. 1.5 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. See the specific precautionary statement in 5.3. 1.6 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: | 77.140.85 - Piezas forjadas |
| CTN: | E04.01 - E04.01 |
|
Otras Relaciones |
Es referenciada por E45 - 25 Es referenciada por A0604_A0604M-07R22 Es referenciada por A0295_A0295M-14R20 Es referenciada por A0660_A0660M-21 Es referenciada por E1180-08R21 Es referenciada por A1089_A1089M-14R20 Es referenciada por F2511-05R22 Es referenciada por A0106_A0106M-19A Es referenciada por A0534-17R22 Es referenciada por A0866-18 Es referenciada por A0485-17R22 Es referenciada por A0756-17R22 Es referenciada por A0711_A0711M-17R22 Es referenciada por A0729_A0729M-17R22 Es referenciada por A0376_A0376M-22 Es referenciada por A961/A961M - 25a Es referenciada por A322 - 24 Es referenciada por F2282 - 23 Es referenciada por A312/A312M - 25 Es referenciada por A1021/A1021M - 20(2025) |










