Astm E125 Reference Photographs Pdf -

ASTM E125 provides a critical set of 31 reference photographs for classifying discontinuities in ferrous castings via the dry powder magnetic particle method. The standard serves as a essential benchmark for quality control, covering eight discontinuity types with varying severity levels for precise inspection, often utilized for contractual acceptance criteria. Review the standard and its accompanying visual aids on the ASTM International website.

Q4: What is the difference between "hot tear" and "shrinkage" in Plate I vs. Plate II?

A: Hot tears (Plate I) are jagged, branching, and follow grain boundaries. Shrinkage (Plate II) appears as wider, spongy, or cavernous indications. The PDF photos make this distinction very clear. Astm E125 Reference Photographs Pdf

Q3: Is there an app that contains the ASTM E125 reference photographs?

A: As of 2025, ASTM does not have an official "app," but the PDF is fully viewable on tablets. Many NDT software platforms allow you to upload your licensed PDF for field viewing. ASTM E125 provides a critical set of 31

The standard categorizes indications into eight types (designated by Roman numerals I–VIII) and assigns a severity level (1–5) to most. Discontinuity Type Severity Levels Type I Linear Discontinuities (Cracks, Hot Tears) Type II Type III Inclusions Type IV Internal Chills and Chaplets Type V 1 and 2 only Types VI-VIII Welds, False Indications, etc. Aerospace : For evaluating the quality of aircraft

  1. Aerospace: For evaluating the quality of aircraft components.
  2. Automotive: For evaluating the quality of vehicle components.
  3. Oil and gas: For evaluating the quality of pipeline components.

Small gas bubbles or voids distributed throughout the metal. Chills and Chaplets: Indications related to internal casting supports.

How to Read the Grades

The photographs are graded on a severity scale, typically Class 1 (Lightest) to Class 6 (Most Severe).