Astm E155 Porosity Levels Pdf Repack Link

Use a light box (brightness > 3000 cd/m²). Place your radiograph next to the printed reference from the PDF (printed at true scale). Move through Levels 1 to 5 until the density and distribution match.

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Massive, equiaxed voids with a sponge-like appearance. The Eight Levels of Severity Use a light box (brightness > 3000 cd/m²)

This summary document condenses the visual data you actually need for porosity grading. It breaks down the two main types of gas porosity you encounter in light alloy castings: astm e155 porosity levels pdf repack, ASTM E155

The ASTM E155 standard also provides guidelines for repacking and radiography of steel castings. Repacking involves filling the pores with a material that allows for better radiographic interpretation. The standard recommends the following:

: For aluminum alloys, these levels are defined for two standard thicknesses: 1/4 inch (6.35 mm) and 3/4 inch (19.1 mm) .