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ASTM E2142

Standard Test Methods for Rating and Classifying Inclusions in Steel Using the Scanning Electron Microscope

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Organization: ASTM
Publication Date: 10 April 2001
Status: inactive
Page Count: 15
ICS Code (Iron and steel products in general): 77.140.01
scope:

Scope

This test method covers procedures to obtain particle size distribution, chemical classification, and E 45 ratings of inclusions in steels using an automated scanning electron microscope (SEM) with X-ray analysis and automatic image analysis capabilities.

There are three discrete methods described. Method 1 is the SEM analog of E 1122, which uses image analysis and light microscopy to produce automated E 45 ratings. Method 2 produces similar ratings based predominantly on sorting inclusions by chemistry into the traditional classes defined in E 45. Method 3 is recommended when explicit detail is needed on particular inclusion types, not necessarily defined in E 45, such as to verify the composition of inclusions in inclusion-engineered steel. Method 3 reports stereological parameters such as volume or number fraction, rather than E 45 type ratings.

This test method deals only with the recommended test methods and nothing in it should be construed as defining or establishing limits of acceptability for any grade of steel or other alloy where the method is appropriate.

The values stated in SI units are to be regarded as the standard. Values in parentheses are conversions and are approximate, and for information only.

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.

Document History

October 1, 2008
Standard Test Methods for Rating and Classifying Inclusions in Steel Using the Scanning Electron Microscope
This test method covers procedures to obtain particle size distribution, chemical classification, and Test Methods E45 ratings of inclusions in steels using an automated scanning electron microscope...
October 1, 2008
Standard Test Methods for Rating and Classifying Inclusions in Steel Using the Scanning Electron Microscope
This test method covers procedures to obtain particle size distribution, chemical classification, and Test Methods E 45 ratings of inclusions in steels using an automated scanning electron microscope...
ASTM E2142
April 10, 2001
Standard Test Methods for Rating and Classifying Inclusions in Steel Using the Scanning Electron Microscope
Scope This test method covers procedures to obtain particle size distribution, chemical classification, and E 45 ratings of inclusions in steels using an automated scanning electron microscope (SEM)...
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