Tag: Standard Test Methods for Rockwell Hardness of Metallic Materials

ASTM E18, Standard Test Methods for Rockwell Hardness of Metallic Materials, has been revised again.  The new 2017 Edition is available from Document Center now.  It is a copyright document and can be purchased in paper format or for pdf download.  It can also be included in our Standards Online cloud access subscription service.

This is one of our best selling standards here at Document Center Inc.  I last blogged about it when the 2016 Edition was released (ASTM E18 2016 Update Available).  It provides you with the test methods to use to determine the Rockwell hardness and the Rockwell superficial hardness of metallic materials.

You will also find complementary information in the Appendices.  Appendix X1 is a list of ASTM standards that give approximate hardness values corresponding to tensile strength values.  Appendix X2 contains examples of procedures for determining Rockwell hardness uncertainty.

The changes in the new 2017 Edition of the ASTM E18 are not extensive.  They center on a new Note A1.4 and changes in Clauses A1.5.2.8, A1.5.3.9, A2.8.1.8 and A2.8.2.9.  However, you may have trouble spotting them.  Use the Redline edition to confirm all updates.  It costs a bit more, but you not only get the clean copy of the 2017 Edition but also the “marked-up” copy of the 2016 one as well.

Copyright standards should always be purchased from an authorized distributor like Document Center Inc.  Search for current and obsolete editions of ASTM Standards at our webstore, www.document-center.com.  It’s easy to order online.  Here is a direct link to the order page for ASTM E18 for your convenience.

Have other questions?  Just reach out to us by phone (650-591-7600) or email (info@document-center.com).  Document Center has been working with standards since 1982.  We have a wide range of products and services to support your document control function. You’ll quickly learn why so many companies make us their Standards Experts!

ASTM E18, “Standard Test Methods for Rockwell Hardness of Metallic Materials,” has just been revised.  The new 2016 Edition is available from Document Center Inc. in a variety of formats.  It is a regular entry in our “Top Selling Standards of …” Lists that we publish annually.   It covers the test methods you’ll use to determine the Rockwell hardness and Rockwell superficial hardness of metallic materials.  And it covers both the machines and the procedures for performing these tests.

The Rockwell hardness test is one of the three most commonly used tests of this kind (the others are the Brinell hardness test, and the Vickers hardness test).  This type of testing is used for quality assurance, to confirm that advanced materials will perform as expected.  Parts may be subject to high temperatures and under conditions involving loads and pressure.   Hardness testing is one way to predict the suitability of a material for the expected stress a given part may be expected to withstand.

These tests all measure the depth to which an indenter will sink into a given material.  They are performed at a defined load and within a specified period of time.  And specialized test eqipment is usually used in order to assure repeatability and control during testing.

Your authoring committee E28 has noted that changes have been made in paragraph A3.5.2.5.  I also note that Table A3.6 also appears to have a correction made as well.  A further editorial change has been made to Table 1.

The 38-page standard is available from Document Center Inc. in paper format or for pdf download.  Additionally you can purchase a redline edition that has the changes noted on a separate copy.  And of course, all ASTM standards can be included in our Standards Online company solution.  Just order at www.document-center.com (here’s the direct link to the order page for ASTM E18).  Or contact our staff by phone (650-591-7600) or email (info@document-center.com).  We’ve been working with standards since 1982 and can help you set up the system you need to best manage this type of compliance information.  Make us your Standards Experts!