样品号 | 抗拉强度Rm/MPa | 屈服强度Rp0.2/MPa | 断后伸长率A/% | k | 疲劳极限Sd/N (N = 2 × 106) | F/kN (N = 104) |
1# | 303.5 | 264 | 3.7 | 4.25 | 7409 | 21.899 |
2# | 316.7 | 256.7 | 4.5 | 4.07 | 723 0 | 22.415 |
3# | 306.6 | 236.8 | 5.8 | 3.8 | 7596 | 30.628 |
4# | 302 | 221.7 | 8 | 3.4 | 7411 | 35.208 |