ASTM G77-17(2022)
Standard Test Method for Ranking Resistance of Materials to Sliding Wear Using Block-on-Ring Wear Test

Standard No.

ASTM G77-17(2022)

Release Date

2022

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM G77-17(2022)

Scope

1.1 This test method covers laboratory procedures for determining the resistance of materials to sliding wear. The test utilizes a block-on-ring friction and wear testing machine to rank pairs of materials according to their sliding wear characteristics under various conditions. 1.2 An important attribute of this test is that it is very flexible. Any material that can be fabricated into, or applied to, blocks and rings can be tested. Thus, the potential materials combinations are endless. However, the interlaboratory testing has been limited to metals. In addition, the test can be run with various lubricants, liquids, or gaseous atmospheres, as desired, to simulate service conditions. Rotational speed and load can also be varied to better correspond to service requirements. 1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only. Wear test results are reported as the volume loss in cubic millimetres for both the block and ring. Materials of higher wear resistance will have lower volume loss. 1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ASTM G77-17(2022) Referenced Document

• ASTM D2714 Standard Test Method for Calibration and Operation of the Falex Block-on-Ring Friction and Wear Testing Machine
• ASTM E122 Standard Practice for Calculating Sample Size to Estimate, With a Specified Tolerable Error, the Average for Characteristic of a Lot or Process
• ASTM E177 Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods
• ASTM E691 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
• ASTM G40 Standard Terminology Relating to Wear and Erosion

ASTM G77-17(2022) history

• 2022 ASTM G77-17(2022) Standard Test Method for Ranking Resistance of Materials to Sliding Wear Using Block-on-Ring Wear Test
• 2017 ASTM G77-17 Standard Test Method for Ranking Resistance of Materials to Sliding Wear Using Block-on-Ring Wear Test
• 2005 ASTM G77-05(2010) Standard Test Method for Ranking Resistance of Materials to Sliding Wear Using Block-on-Ring Wear Test
• 2005 ASTM G77-05e1 Standard Test Method for Ranking Resistance of Materials to Sliding Wear Using Block-on-Ring Wear Test
• 2005 ASTM G77-05 Standard Test Method for Ranking Resistance of Materials to Sliding Wear Using Block-on-Ring Wear Test
• 1998 ASTM G77-98 Standard Test Method for Ranking Resistance of Materials to Sliding Wear Using Block-on-Ring Wear Test