ASTM E381-84 Standard Method of Macroetch Testing Steel Bars, Billets, Blooms, and Forgings
- Abbreviation
- ASTM E381-84
- Valid from
- 1/02/1984
- Information provider
- IHS Markit,
- Author
- American Society of Testing and Materials
- Information type
- ASTM Standard,
- Format
- PDF, HARD COPY,
Description
Macroetching, which is the etching of specimens for macrostructural examination at low magnifications, is a frequently used technique for evaluating steel products such as bars, billets, blooms, and forgings.
Included in this method is a procedure for rating steel specimens by a graded series of photographs showing the incidence of certain conditions. The method is limited in application to bars, billets, blooms, and forgings of carbon and low alloy steels.
A number of different etching reagents may be used depending upon the type of examination to be made. Steels react differently to etching reagents because of variations in chemical composition, method of manufacture, heat treatment and many other variables. Establishment of general standards for acceptance or rejection for all conditions is impractical as some conditions must be considered relative to the part in which it occurs.
This resource is cited by:
ASTM E381-84 Standard Method of Macroetch Testing Steel Bars, Billets, Blooms, and Forgings
This document is CITED BY:
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ASTM A106-91
ASTM E381-84 is cited by ASTM A106-91 Specification for seamless carbon steel pipe for high temperature service