Designation: E – 04Standard Guide for Metals Identification, Grade For referenced ASTM standards, visit the ASTM website, , or. ASTM E Standard Guide for Metals Identification, Grade Verification, and Sorting. This guide is intended for tutorial purposes only. It describes the general requirements, methods, and procedures for the nondestructive identification and .

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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. Nondestructive means are available to supplement conventional metals grade verification techniques, and to monitor chemical and physical properties at selected production stages, in order to assist in maintaining the identities of metals and their consistency in mechanical properties.

ASTM E – 04() Standard Guide for Metals Identification, Grade Verification, and Sorting

For specific precautionary e1467, see Section The electromagnetic eddy current and thermoelectric methods, on the other hand, are among those that respond to properties in the sample that are affected by chemistry and processing, and they yield indirect information on composition and mechanical properties. In this guide, the spectrometric methods are classified as quantitative, whereas the methods that yield indirect readings are termed qualitative. This involves the use of standard quality assurance practices and procedures throughout the various stages of manufacturing and processing, at warehouses and materials receiving, and during fabrication and final installation of the product.


They are quite often used in the field for solving problems involving off-grade and mixed-grade materials. It summarizes the operating principles of each method, provides guidance on where and how each may be applied, gives when applicable the precision and bias that may be expected, and assists the investigator in selecting the best candidates for specific grade verification or sorting problems.

Historical Version s – view previous versions of standard. Referenced Documents purchase separately The documents listed below are aatm within the subject standard but are not provided as part of the standard. It describes the general requirements, methods, and procedures for the 1e476 identification and sorting of metals. Statistical quality assurance methods are usually effective; however, mixed grades, off-chemistry, and nonstandard physical properties remain the primary causes for claims in the metals industry.

ASTM E – 04 Standard Guide for Metals Identification, Grade Verification, and Sorting

Several pieces from a production run are usually destroyed or rendered unusable through mechanical and chemical testing, adtm the results are used to assess the entire lot using statistical methods.


A more comprehensive verification of product properties is necessary. Spectrometric analysis instruments respond to the presence and percents of alloying constituents.

Link to Active This link will always route to the current Active version of the standard. These practices typically involve standard chemical analyses and physical tests to meet product acceptance standards, which are slow.