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GB/T 230.3-2022 Active
GB/T 230.3-2022 Metallic materials—Rockwell hardness test—Part 3:Calibration of reference blocks
Abstract
This document specifies the calibration method for standard hardness blocks (hereinafter referred to as "standard blocks") used in indirect and routine inspections of Rockwell hardness testers according to GB/T 230.2-2022. It is worth noting that tungsten carbide alloy ball indenter is regarded as a standard Rockwell hardness indenter. Steel ball indenter can only be used when it meets the requirements of Appendix A of GB/T 230.1-2018. This document is applicable to the calibration of standard hardness blocks for Rockwell hardness testing.
General Product Information
| Document Type | National standards |
|---|---|
| Standard Status | Active |
| Standard Code | GB/T 230.3-2022 |
| CCS | Metallic material testing machine |
| ICS | Mechanical testing |
| Implement Date | 2023-02-01 |
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