: Because MSS SP-55 is a visual-based standard, a low-quality scan or a highly compressed PDF can make it difficult to distinguish between subtle surface textures. It is highly recommended to use an official digital version or the physical handbook to ensure the reference photos are accurate.
: Three photos for each type depict conditions that require rejection or further remedial action. mss sp55 standard pdf work
Clean the casting. Remove rust, paint, or scale. The surface must be dry and free of loose debris. : Because MSS SP-55 is a visual-based standard,
Type I: Hot Tears and CracksThese are linear fractures caused by internal stresses during cooling. Cracks are generally never acceptable and require immediate rejection or documented weld repair. mss sp55 standard pdf work