Mss Sp-55 Standard Pdf !!top!! (FREE)

The standard is periodically reviewed and updated. The latest edition, , represents a significant evolution. Its most important change is that its title and scope have been revised to officially include iron castings as well as steel castings. This change reflects industry confirmation that the quality criteria established for steel castings are equally applicable to iron castings, creating a unified set of expectations for all ferrous pressure castings used in the piping industry.

– Internal or surface cavities formed as the molten metal contracts during solidification. mss sp-55 standard pdf

Establishing acceptable vs. unacceptable surface irregularities. The standard is periodically reviewed and updated

Inspectors often use a fingernail or a reference comparator gauge to feel the depth of an irregularity if a visual check is inconclusive. mss sp-55 standard pdf