1.1 These reference radiographs illustrate various categories, types and severity levels of discontinuities occurring in steel castings that have section thicknesses of 2 to less than 4½ in. (50.8 to 114
ASTM
Standard Reference Radiographs for Heavy-Walled (2 to 4½-in. (50.8 to 114-mm)) Steel Castings
STD-79900
2010
2010-01-01
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