| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| what is the hardness of 4140 | 0.33 | 1 | 844 | 57 |
| what is the hardness of 4140 pre hard steel | 0.26 | 0.3 | 8208 | 25 |
| what is the hardness of 4140 annealed | 1.21 | 0.1 | 1643 | 54 |
| what is the hardness of 4140 steel | 1.83 | 0.5 | 7863 | 69 |
| what is the hardness of 4140 annealed steel | 1.28 | 0.8 | 9910 | 71 |
| 4140 steel hardness | 1.61 | 0.5 | 2364 | 80 |
| 4140 annealed hardness | 1.57 | 0.5 | 9893 | 24 |
| 4140 ht hardness | 1.94 | 0.3 | 9031 | 88 |
| 4140 rockwell hardness | 0.35 | 0.9 | 3272 | 44 |
| 4140 hardness chart | 1.36 | 1 | 8758 | 96 |
| 4140 prehard hardness | 1.73 | 1 | 3095 | 60 |
| 4140 pht hardness | 2 | 0.6 | 1036 | 80 |
| hardness 4140 | 1.71 | 0.1 | 8156 | 76 |
