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GB/T 18449.1-2009
GB/T 18449.1-2009 Metallic materials—Knoop hardness test—Part 1:Test method
Abstract
This part of GB/T 18449 specifies the principles, symbols, and explanations of the Nuh's hardness test for metal materials, as well as the hardness tester, samples, test methods, uncertainty of results, and test reports. The test force range specified in this part is 0.09807 N to 19.614 N. This method is only applicable to indentation diagonal lengths ≥ 0.02 mm.
General Product Information
| Document Type | National standards |
|---|---|
| Standard Status | Replaced |
| Standard Code | GB/T 18449.1-2009 |
| CCS | \n Test methods for the mechanical properties of metals |
| ICS | Mechanical testing of metal materials |
| Implement Date | 2010-04-01 |
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