Understanding ASTM E155 Porosity Levels in Castings In the world of precision manufacturing, especially for automotive and aerospace components, ensuring structural integrity is critical. One of the most vital standards for this is
Gas porosity appears as round, dark spots on a radiograph. The ASTM E155 reference radiographs for gas porosity are graded by: astm e155 porosity levels pdf repack
Level III NDT Consultant specializing in digital radiography and castings for aerospace & defense. Understanding ASTM E155 Porosity Levels in Castings In
Designers often apply different levels to the same part; critical thin "arms" may require Level 1, while thicker "truck" areas might allow Level 3. Portability – on your laptop or tablet in
: Discontinuities are categorized into 8 levels , where Level 1 represents the highest quality (smallest/fewest defects) and Level 8 represents the lowest quality (largest/most defects).
By organizing the severity levels (1 through 5), differentiating gas from shrinkage porosity, and creating a searchable, high-contrast reference, you reduce interpretation errors, speed up inspection times, and ensure consistent acceptance decisions.