The Applied Technical Services Family of Companies (FoC) determines the average grain size of metals in accordance with the procedures outlined in the ASTM E112 standard. Grain size has an immense impact on a material’s performance, so manufacturers analyze the microstructure of materials to ensure that their material selection processes are effective. Our engineers determine the microstructures of materials so that our clients can evaluate the quality of materials and make informed decisions about their materials’ end-use.
What is ASTM E112?
The American Society for Testing and Materials developed ASTM E112 as a series of standards that accurately determine the average size of the grains within a material. A material’s grain size is an important factor to consider because it impacts the ductility, fatigue resistance, and strength of materials. The ASTM E112 standard consists of the following test methods:
The Comparison Method
During this method, technicians analyze a material’s microstructure and compare it with images in preexisting comparison charts.
Planimetric (Jefferies) Method
This Jefferies method involves technicians measuring the individual grains within a micrograph which allows them to calculate the average grain size.
The Intercept Method
During this method, experts superimpose lines on a micrograph and count the number of times the lines intersect with grain boundaries. Experts determine the number of intercepts and the total length of the lines to calculate the average grain size.
More About Our Grain Size Testing Services
Our A2LA-accredited metallurgy laboratory provides comprehensive grain size analysis services for a multitude of metals. We offer an expansive list of grain size testing services that adhere to ASTM and ISO standards, ensuring that procedures are consistent with the standards recognized by various industries and sectors. In addition to our ASTM E112 services, we offer the following services:
Upon completion of our services, we provide detailed, clear, and concise reports that supply our clients with the information needed to strengthen their quality control and material selection processes.
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Please submit a web inquiry form or call +1 (888) 287-5227 to speak with an ATS representative to learn more about how we can help your business maximize its potential.
