– Improper surface prep after a weld repair.
– Shallow depressions from mold surface faulting. mss sp-55 standard pdf
– Ridges on the surface from mold sand cracking. – Improper surface prep after a weld repair
: Twelve types of irregularities are categorized, with five examples for each—two showing acceptable levels and three showing rejectable ones. Categories of Surface Irregularities mss sp-55 standard pdf
: Specifically covers steel and (in the 2025 edition) iron castings for valves, flanges, and fittings.
– Surface folds from incomplete metal fusing.
