| Method | Specimen | at 20 mm | at 500 mm | ||||
| X-ray | Specimen #1 | 439 | 409 | ||||
| Specimen #2 | 595 | 510 | |||||
| Specimen #3 | 615 | 533 | |||||
| Average | 549 | 484 | |||||
| Max-min. | 176 | 124 | |||||
| 10 × 10 mm | 15 × 15 mm | ||||||
| sx | sy | Mises | sx | sy | Mises | ||
| Sectioning | Specimen #4 | 105 | 476 | 433 | 143 | 444 | 393 |
| Specimen #5 | 111 | 734 | 685 | 132 | 710 | 654 | |
| Specimen #6 | 116 | 639 | 590 | 148 | 612 | 553 | |
| Average | 111 | 616 | 569 | 141 | 589 | 533 | |
| Max-min. | 11 | 258 | 252 | 16 | 266 | 262 | |
| σx | σy | Mises | |||||
| Center hole drilling methods (at 500 mm) | Specimen #7 | 423 | 790 | 685 | |||
| Specimen #8 | 290 | 575 | 501 | ||||
| Specimen #9 | 281 | 513 | 448 | ||||
| Average | 331 | 626 | 545 | ||||
| Max-min. | 143 | 277 | 237 | ||||