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| Estimated Mechanical Properties and Machinability Ratings of Selected Cold Drawn Alloy Steels | |||||||
| AISI SAE No. | Treatment | Tensile Strength (psi) | Yield Strength (psi) | Elong. (%) in 2" | Reduction of Area (%) | Brinell Hardness | Relative Machinability Rating (%), Based on SAE 1212 as 100% |
| 1340 | As-Rolled | ||||||
| Normalized | 121,360 | 81,000 | 22.0 | 62.9 | 248 | ||
| Annealed | 102,000 | 63,300 | 25.5 | 57.3 | 207 | ||
| Cold Drawn | 50 | ||||||
| 4130 | As-Rolled | ||||||
| Normalized | 97,000 | 63,300 | 25.5 | 59.5 | 197 | ||
| Annealed | 81,300 | 52,300 | 28.2 | 55.6 | 156 | ||
| Cold Drawn | 70 | ||||||
| 4140 | As-Rolled | ||||||
| Normalized | 148,000 | 95,000 | 17.7 | 46.8 | 302 | ||
| Annealed | 95,000 | 60,500 | 25.7 | 56.9 | 197 | ||
| Cold Drawn | 65 | ||||||
| 4150 | As-Rolled | ||||||
| Normalized | 167,500 | 106,500 | 11.7 | 30.8 | 321 | ||
| Annealed | 105,800 | 55,000 | 20.2 | 40.2 | 197 | ||
| Cold Drawn | 55 | ||||||
| 4320 | As-Rolled | ||||||
| Normalized | 115,000 | 67,300 | 20.8 | 50.7 | 235 | ||
| Annealed | 84,000 | 61,600 | 29.0 | 58.4 | 163 | ||
| Cold Drawn | 60 | ||||||
| 4340 | As-Rolled | ||||||
| Normalized | 185,500 | 125,000 | 12.2 | 36.3 | 363 | ||
| Annealed | 108,000 | 68,500 | 22.0 | 49.9 | 217 | ||
| Cold Drawn | 50 | ||||||
| 4620 | As-Rolled | ||||||
| Normalized | 83,300 | 53,100 | 29.0 | 66.7 | 174 | ||
| Annealed | 74,300 | 54,000 | 31.3 | 60.3 | 149 | ||
| Cold Drawn | 65 | ||||||
| 5140 | As-Rolled | ||||||
| Normalized | 115,000 | 68,500 | 22.7 | 59.2 | 229 | ||
| Annealed | 83,000 | 42,500 | 28.6 | 57.3 | 167 | ||
| Cold Drawn | 65 | ||||||
| 5160 | As-Rolled | ||||||
| Normalized | 138,800 | 77,000 | 17.5 | 44.8 | 269 | ||
| Annealed | 104,800 | 40,000 | 17.2 | 30.6 | 197 | ||
| Cold Drawn | 55 | ||||||
| 8620 | As-Rolled | ||||||
| Normalized | 91,800 | 51,800 | 26.3 | 59.7 | 183 | ||
| Annealed | 77,800 | 55,900 | 31.3 | 62.1 | 149 | ||
| Cold Drawn | 65 | ||||||
| 8630 | As-Rolled | ||||||
| Normalized | 94,300 | 62,300 | 23.5 | 53.5 | 187 | ||
| Annealed | 81,800 | 54,000 | 29.0 | 58.9 | 156 | ||
| Cold Drawn | 70 | ||||||
| 8740 | As-Rolled | ||||||
| Normalized | 134,800 | 88,000 | 16.0 | 47.9 | 269 | ||
| Annealed | 100,800 | 60,300 | 22.2 | 46.4 | 201 | ||
| Cold Drawn | 65 | ||||||
