ASTM E110-14
Standard Test Method for Rockwell and Brinell Hardness of Metallic Materials by Portable Hardness Testers

Standard No.

ASTM E110-14

Release Date

2014

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM E110-14(2023)

Latest

ASTM E110-14(2023)

Scope

3.1 Portable hardness testers are used for testing materials that because of their size, location or other requirements such as test point are unable to be tested using traditional fixed instruments.

3.2 Portable hardness testers, by their nature, induce variation that could influence the test results; therefore, hardness measurements made in accordance with this test method are not considered to meet the requirements of E10 or E18. The user should compare the results of the precision and bias studies in E110, E10 and E18 to understand the differences in results expected between portable and fixed instruments.

3.3 Two test parameters that can significantly influence the measurement accuracy when using portable hardness testers are the alignment of the indenter to the test surface and the timing of the test forces. The user is cautioned to do everything possible to keep the centerline of the indenter perpendicular to the test surface and to apply the test forces using the same time cycle as defined in Test Method E10 or Test Methods E18.

3.4 Portable hardness testers are delicate instruments that are subject to damage when they are moved from one test site to another. Therefore, repeating the daily verification process during the testing sequence is recommended to insure that they are working properly.

3.5 Hardness testing at a specific location on a part may not represent the physical characteristics of the whole part or end product.

1.1 This test method defines the requirements for portable instruments that are intended to be used to measure the Rockwell or Brinell hardness of metallic materials by performing indentation tests on the surface of materials in the field or outside of a test lab, or in cases where the size or weight of the test piece prevents it from being tested on a standard E10 or E18 hardness tester.

1.2 The principles used to measure the Rockwell or Brinell hardness are the same as those defined in the E18 standard test method for Rockwell or E10 standard test method for Brinell.

Note 1: Standard test methods E10 and E18 will be referred to in this test method as the standard methods.

1.3 The portable hardness testers covered by this test method are verified only by the indirect verification method. Although the portable hardness testers are designed to employ the same test conditions as those defined in the standard test methods, the forces applied by the portable Rockwell and Brinell testers and the depth measuring systems of the portable Rockwell testers may......

ASTM E110-14 Referenced Document

• ASTM A1038 Standard Test Method for Portable Hardness Testing by the Ultrasonic Contact Impedance Method
• ASTM A833 Standard Practice for Indentation Hardness of Metallic Materials by Comparison Hardness Testers
• ASTM A956 Standard Test Method for Leeb Hardness Testing of Steel Products
• ASTM B647 Standard Test Method for Indentation Hardness of Aluminum Alloys by Means of a Webster Hardness Gage
• ASTM E10 Standard Test Method for Brinell Hardness of Metallic Materials
• ASTM E140 Standard Hardness Conversion Tables for Metals Relationship Among Brinell Hardness, Vickers Hardness, Rockwell Hardness, Superficial Hardness, Knoop Hardness, and Scleroscope Hardness
• ASTM E18 Standard Test Methods for Rockwell Hardness of Metallic Materials
• ASTM E691 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
• ISO/IEC 17011 Conformity assessment — Requirements for accreditation bodies accrediting conformity assessment bodies*， 2024-04-20 Update
• ISO/IEC 17025 General requirements for the competence of testing and calibration laboratories [Standard in French]

ASTM E110-14 history

• 2023 ASTM E110-14(2023) Standard Test Method for Rockwell and Brinell Hardness of Metallic Materials by Portable Hardness Testers
• 2014 ASTM E110-14 Standard Test Method for Rockwell and Brinell Hardness of Metallic Materials by Portable Hardness Testers
• 2010 ASTM E110-10 Standard Test Method for Indentation Hardness of Metallic Materials by Portable Hardness Testers
• 2002 ASTM E110-82(2002) Standard Test Method for Indentation Hardness of Metallic Materials by Portable Hardness Testers
• 1999 ASTM E110-82(1997)e2 Standard Test Method for Indentation Hardness of Metallic Materials by Portable Hardness Testers