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ASTM E930-99(2007)

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Standard Test Methods for Estimating the Largest Grain Observed in a Metallographic Section (ALA Grain Size)
standard by ASTM International, 10/01/2007

Category: ASTM

Description

Description

The presence of large grains has been correlated with anomalous mechanical behavior in, for example, crack initiation, crack propagation, and fatigue. Thus there is engineering justification for reporting the ALA grain size.