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Standard Practice for Macroetch Testing of Consumable Electrode Remelted Steel Bars and Billets
NORMA vydaná dňa 1.3.2022
Označenie normy: ASTM A604/A604M-07(2022)
Dátum vydania normy: 1.3.2022
Kód tovaru: NS-1050970
Počet strán: 14
Približná hmotnosť: 42 g (0.09 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Keywords:
consumable electrode remelting, electroslag remelting, freckles, macro etching, radial segregation, ring pattern, segregation, vacuum arc remelting, white spots,, ICS Number Code 77.140.60 (Steel bars and rods)
Adjunct to A604 Test Method for Macroetch Testing of Consumable Electrode Remelted Steel Bars and Billets
Vybraný formát:Significance and Use | ||||
4.1?Macroetch testing, as described herein, is a method for examining and rating transverse sections of bars and billets to describe certain conditions of macro segregation which are often characteristic of consumable electrode remelted materials. 4.2?This practice is not intended to define major defects such as those described by Method E381. |
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1. Scope | ||||
1.1?This practice1.2?For the purpose of this practice, the consumable electrode remelting process is defined as a steel refining method wherein single or multiple electrodes are remelted into a crucible producing an ingot which is superior to the original electrode by virtue of improved cleanliness or lower gas content or reduced chemical or nonmetallic segregation. See Appendix X1 and Appendix X2 for descriptions of applicable remelting processes. 1.3?This practice and the accompanying comparison macrographs3 are generally applicable to steel bar and billet sizes up to 225 in.2 [1450 cm2] in transverse cross section. 1.4?The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined. 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. 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. |
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2. Referenced Documents | ||||
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