Test Items | Test Method and Standard | Sample Requirements |
Fracture analysis | Internal standards | The fracture cannot be abraded |
Average grain size of metal | Internal standards | / |
Micrograph evaluation of non-metal inclusion | Internal standards | / |
Metallographic analysis | Internal standards | / |
Composition analysis | Direct-reading spectrometer, ICP, etc. | 100g |
Tensile property | ASTME8/E8M-13 ISO 6892-1998 GB/T 228.1-2010 |
1. Generally, the sample length shall be ≥ 200mm; ; 2. If the sample length is < 200mm, the samples of a smaller proportion can be adopted to test, which shall require the customer to confirm first; |
Bending property | ASTM E290-2009 GB/T 232-2010 ISO 7438:2005 |
The width is ≥20mm, The length is related to the thickness and shall be greater than 200mm |
Hardness | Brinell hardness, Rockwell hardness, Vickers hardness | Different hardnesses require different sizes, it should confirm specifically |
Analysis of corrosion products and trace foreign matters on the surface | Adopt internal method | / |
Failure recurrence/verification | Adopt internal method | Depend on the specific test items |