ASTM E407

This practice lists recommended methods and solutions for the etching of specimens for metallographic examination. Solutions are listed to highlight phases present in most major alloy systems.

1. Scope

1.1 This practice covers chemical solutions and procedures to be used in etching metals and alloys for microscopic examination. Safety precautions and miscellaneous information are also included.

1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specific cautionary statements, see 6.1 and Table 2.

2. Referenced Documents

D1193 Specification for Reagent Water
E2014 Guide on Metallographic Laboratory Safety
E7 Terminology Relating to Metallography

Index Terms

etch; etchant; interference method; metallography; metals; microetch; microscope; microstructure; Pepperhoff method; tint etch; ICS Number Code 77.040.99 (Other methods of testing metals)

Citing ASTM Standards

[Back to Top]