ASTM E155 provides standard reference radiographs classifying aluminum and magnesium casting discontinuities into eight severity levels, where Level 1 denotes minimum, and Level 8 maximum, porosity. These levels are utilized for grading castings in acceptance standards such as ASTM B686, which requires specific ratings for Grades B, C, and D. For official standards and technical documents, visit ASTM International www.qgdigitalpublishing.com
The Technical Significance of ASTM E155
ASTM E155 Discontinuity Levels Guide | PDF | Materials - Scribd astm e155 porosity levels pdf repack
, which provides standard reference radiographs for inspecting aluminum and magnesium castings. ASTM International What is ASTM E155?
Gas Holes: Similar to gas porosity but generally larger; these appear as smooth-edged dark spots. ASTM International What is ASTM E155
The ASTM E155 standard defines four levels of porosity in steel castings, ranging from Level I (no porosity) to Level IV (severe porosity). The levels are based on the size and distribution of pores within the casting.
Understanding ASTM E155 Porosity Levels for Aluminum and Magnesium Castings The levels are based on the size and
Note: For Grade AA, typically no discontinuities are permitted. Guide to Using ASTM E155 Radiographs