Astm E155 Porosity Levels Pdf Repack | [2021]

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

Q3: What is the difference between E155 and E505?

  • E155 covers aluminum & magnesium.
  • E505 covers aluminum & magnesium die castings (different porosity morphology due to high-pressure injection).

Level 1 (Highest Quality): Minimal porosity, often barely detectable on X-ray images. astm e155 porosity levels pdf repack

The guide uses a set of physical reference plates (radiographs) that show varying degrees of severity for specific defects. In a typical inspection, a technician compares a live X-ray of a casting to these standard levels to determine if the part is "pass" or "fail" based on the project's engineering requirements. Understanding ASTM E155 Porosity Levels in Castings In

The Short Verdict If you have ever argued with a supplier over whether a porosity indication is “minor scattered” or “severe cluster,” you know the value of a standard. The ASTM E155 document is the Bible of casting discontinuities. This specific repack of the Porosity Levels section (Volume I) takes a clumsy, expensive, museum-piece bound set of plastic plates and transforms it into a usable, modern workflow tool. It is not perfect (digital will never fully replace film), but for 95% of QA/QC applications, this repack is a game-changer. E155 covers aluminum & magnesium

  • ASTM E155 is a standard reference radiograph for aluminum and magnesium castings, used to detect porosity and other discontinuities. The official document is copyrighted by ASTM International.
  • “Repack” typically means someone has recompressed, modified, or removed protection from a PDF — often illegally. Repacked PDFs may contain malware, altered reference images, or incorrect porosity level scales.
  • Using an unauthorized repack could lead to non‑conforming inspection results if the images or acceptance criteria differ from the official standard.

Mistake #2: Ignoring Wall Thickness Effects

A Level 3 porosity in a 0.5-inch section looks completely different than the same nominal level in a 1-inch section. Always reference the thickness-specific plate in ASTM E155.

Digital Standards: For digital radiography (CR/DR), the related ASTM E2422 (aluminum) or ASTM E2869 (magnesium) should be used instead of the film-based E155.