Sp 55 Pdf - Mss

MSS SP-55 includes a comparison table (Table 1) that correlates its acceptance criteria with other industry comparators, such as those from Castings Technology International (CTI) or the SCRATA standard. This helps manufacturers who may use plastic replicas (comparators) instead of photos to ensure they meet the minimum requirements of SP-55. Where to Find the Official PDF

: It relies on a set of 60 reference photographs to help inspectors distinguish between acceptable and unacceptable irregularities. The 12 Types of Surface Irregularities mss sp 55 pdf

The primary goal of the MSS SP-55 standard is to ensure that steel castings are free from surface irregularities that could compromise their structural integrity or performance. It is intended to supplement ASTM specifications like A216, A217, and A351 by providing a more detailed visual guide for quality control. MSS SP-55 includes a comparison table (Table 1)