The technician analyzes the shape, direction, and pattern of the indication to match it with one of the ASTM E125 types (e.g., Type I for a crack, Type III for shrinkage).
The standard categorizes indications into (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.
Unfortunately, I couldn't find a direct link to a free PDF version of the ASTM E125 reference photographs. However, I can guide you on how to access them: Astm E125 Reference Photographs Pdf
The core value of ASTM E125 lies in its collection of reference photographs. These images document varying degrees of severity for different types of discontinuities. The standard categorizes these indications into five primary types, along with two additional distinct categories: Type I: Cracks
The technician compares the size, density, and length of the indication against the graded reference photographs within that specific category. The technician analyzes the shape, direction, and pattern
It is common for professionals to search for a online. While digital versions are convenient, there are critical factors to consider:
The for your project (e.g., ASME, military standards) Unfortunately, I couldn't find a direct link to
: Structural failures happening after the metal has completely solidified, often due to internal stresses. Type II: Shrinkage