ASTM A604-93(1998) PDF

1.1 This test method for testing and inspection is applicable to bars, billets, and blooms of carbon, alloy, and stainless steel which have been consumable electrode remelted.

1.2 For the purpose of this test method, 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 Appendixes X1 and X2 for descriptions of applicable remelting processes.

1.3 This test method and the accompanying comparison macrographs are generally applicable to steel bar and billet sizes up to 225 in. in transverse cross section.