Standard Test Methods for Rating and Classifying Inclusions in Steel Using the Scanning Electron Microscope
|Publication Date:||10 April 2001|
|ICS Code (Iron and steel products in general):||77.140.01|
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
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.