ASTM A1038-05 - 1.1.2005
 
1. Scope

1.1 This practice covers the determination of comparative hardness values by applying the Ultrasonic Contact Impedance Method (UCI Method).

1.2 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.

 
2. Referenced Documents

E10-23

Standard Test Method for Brinell Hardness of Metallic Materials

E18-25

Standard Test Methods for Rockwell Hardness of Metallic Materials

E140-12B(2019)e1

Standard Hardness Conversion Tables for Metals Relationship Among Brinell Hardness, Vickers Hardness, Rockwell Hardness, Superficial Hardness, Knoop Hardness, Scleroscope Hardness, and Leeb Hardness (Includes all amendments and changes 5/7/2019).

E384-22

Standard Test Method for Microindentation Hardness of Materials

A370-26

Standard Test Methods and Definitions for Mechanical Testing of Steel Products

E691-23

Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method

E177-26a

Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods (Includes all amendments and changes 5/14/2026).