| «~µP¡G°ê²£/¶i¤f | §÷½è¡G¤£ù׿û | ²£¦a¡G¶i¤f/°ê²£ |
| ¤¸¯À | C | Si | Ni | Mn | Mo | Cu | AI | Cr |
| §t¶q | 0.15 | 0.3 | 3.0 | 1.5 | 0.3 | 1.0 | 1.0 | 0.3 |
| µw«× | 41HRC |
| 0.2%°¥ñ±j«× | 103kgf/¥¤èmm¡]147Ksi¡^ |
| §Ü©Ô±j«× | 128kgf/¥¤èmm¡]147Ksi¡^ |
| Â_±ÁY²v | 38.0% |
| ¦ùªø²v | 15.6% |
| ½ÄÀ»È¡]U-notch,20¢J¡^ | 2.0Kgf-m/¥¤ècm(151bf-ft)Áa¦V |
| ¾÷±ñ©Ê¯à | ´ú¸Õ·Å«×¡]¢J | ||
| 100 | 200 | 300 | |
| §Ü©Ô±j«×¡]Ksi¡^ | - | 145 | 143 |
| Â_±ÁY²v¡]%¡^ | - | 38.5 | 40.1 |
| ¦ùªø²v | - | 15.9 | 16.0 |
| ½ÄÀ»È | 1.8 | 3.6 | 3.5 |
| µw«×¡]HV¡^ | 395 | 375 | 360 |