Large-scale fittings for water distribution. 6. How to Use MSS SP-55 for Inspection
“Any crack or hot tear, regardless of size or location, shall be cause for rejection.” This is absolute. No crack is acceptable.
Do you need help integrating MSS SP-55 with other standards like or ASTM A802 ? mss sp55 standard pdf work
. Established in 1961, it provides a uniform method for inspectors to distinguish between acceptable surface conditions and rejectable defects using a set of 60 reference photographs. The Story of the Steel Inspector’s "Bible"
To make your efficient, embed the standard into your QMS procedures. Here is a template for your internal Work Instruction . Large-scale fittings for water distribution
Various defects resulting from the mold surface or pouring process. 4. The "MSS SP-55 Standard PDF Work" Explained
If you require the official PDF for contractual or inspection work, you must purchase it from an authorized distributor to ensure you have the legal and latest version. No crack is acceptable
– Linear fractures caused by stress during cooling.
Includes a set of photographic reference guides illustrating acceptable and unacceptable surface conditions.
The photographs are used to compare an actual casting surface with the reference pictures to determine if the irregularity is acceptable or unacceptable based on the project specifications. Surface Quality Evaluation
If a defect exceeds the allowable threshold, it must be marked for remediation. This usually involves grinding out the defect to sound metal and performing a code-compliant repair weld, followed by re-inspection. MSS SP-55 vs. Other Inspection Standards