ASTM E1181-02 - 10.4.2002
 
1. Scope

1.1 These test methods provide simple guidelines for deciding whether a duplex grain size exists. The test methods separate duplex grain sizes into one of two distinct classes, then into specific types within those classes, and provide systems for grain size characterization of each type.

1.2 This standard may involve hazardous materials, operations, and equipment. This standard does not purport to address all of the safety concerns associated with its use. It is the responsibility of the user of this standard to consult appropriate safety and health practices and determine the applicability of regulatory limitations prior to its use.

 
2. Referenced Documents

E112-13(2021)

Standard Test Methods for Determining Average Grain Size

E407-23

Standard Practice for Microetching Metals and Alloys

E7-22

Standard Terminology Relating to Metallography

E3-11(2017)

Standard Guide for Preparation of Metallographic Specimens

E883-11(2017)

Standard Guide for Reflected-Light Photomicrography

E930-18

Standard Test Methods for Estimating the Largest Grain Observed in a Metallographic Section (ALA Grain Size)

Comparison Chart for Estimation of Area Fractions This comparison chart shows different area percentages of light grains among dark grains. Available from ASTM Headquarters. Order Adjunct: .

E562-19e1

Standard Test Method for Determining Volume Fraction by Systematic Manual Point Count (Includes all amendments and changes 8/24/2020).