| 1 | Metal, alloys and products | 11 | Pledge load | Mechanical properties of fasteners―Stainless steel nuts GB/T 3098.15-2014 |
| Mechanical properties of corrosion-resistant stainless steel fasteners -- Part 2: Nuts ISO 3506-2:2009 |
| Standard Test Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners, Washers, Direct Tension Indicators, and Rivets ASTM F606/F606M-19 |
| 12 | Brinell hardness | Metallic materials-Brinell hardness test- Part 1: Test method GB/T 231.1-2018 |
| Metallic materials-Brinell hardness test- Part 1: Test method ISO 6506-1:2014 |
| Standard Test Method for Brinell Hardness of Metallic Materials HB 5168-1996 |
| Standard Test Method for Brinell Hardness of Metallic Materials ASTM E10-2018 |
| Standard Test Methods and Definitions for Mechanical Testing of Steel Products ASTM A370-19e1 |
| 13 | Pendulum impact test-instrumented test | Steel－Charpy V-notch pendulum impact test-Instrumented test method GB/T 19748-2005 |
| Metallic materials－Charpy V-notch pendulum impcat test－Instrumented test method ISO 14556:2015 |
| Standard Test Method for Instrumented Impact Testing of Metallic Materials ASTM E2298-2018 |
| 14 | Vickers hardness | Metallic materials - Vickers hardness test - Part 1: Test method GB/T 4340.1-2009 |
| Metallic materials - Vickers hardness test - Part 1: Test method ISO 6507-1:2018 |
| Hardness test methods on welded joints GB/T 2654-2008 |
| Destructive tests on welds in metallic materials-Hardness testing-Part 1:Hardness test on arc welded joints ISO 9015-1:2001 |
| 15 | microstructure | Inspection methods of microstructure for metals GB/T 13298-2015 |
| Destructive tests on welds in metallic materials — Macroscopic and microscopic examination of welds ISO 17639:2003 |
| Standard Guide for Preparation of Metallographic Specimens ASTM E3-2011(2017) |
| Steel-Determination of microstructure GB/T 13299-1991 |
| Metellographic grading atlas and assessing method for steel die forgings GB/T 13320-2007 |
