Mss Sp-55 Standard Pdf New! -

The is a critical quality guideline for the visual inspection of steel and iron castings used in industrial piping components like valves, flanges, and fittings. Formally titled the "Quality Standard for Steel Castings for Valves, Flanges, Fittings, and Other Piping Components – Visual Method for Evaluation of Surface Irregularities," it provides a uniform basis for identifying and accepting surface defects. Overview of MSS SP-55

: The standard is intended for use on any 4 in. x 5 in. (100mm x 125mm) area of a casting surface. mss sp-55 standard pdf

– Surface folds from incomplete metal fusing. The is a critical quality guideline for the

– Slightly raised sand-crusted metal blemishes. x 5 in

: Twelve types of irregularities are categorized, with five examples for each—two showing acceptable levels and three showing rejectable ones. Categories of Surface Irregularities