
Hardness
| HRB HRC | Rm N/mm2 | Fe Ni | Cr | Co Mo | W Si | Mn | Li Ti Al C P | S | Others Cu Zn Mg | ||
| HB | |||||||||||
| Stainless Steels | |||||||||||
| HRB86 | 560 | 58.9/65.3 | 14/15.5 | 17/18.5 | 2 | 3.7/4.3 | 2 | 0.018 | 0.02 | 0.02 | 0.5 |
| HRB91 | 620 | 58/60 | 17/18 | 17/18.5 | 0.2 | 5.0/5.6 | 0.5/0.8 | 0.015 | 0.03 | 0.013 | 0.35 |
| 9.00 | 19.00 | ||||||||||
| 3.00 | 12.00 | 2.00 | |||||||||
| 217-241HB | 840 | 67.7 | 5.5 | 18 | 1 | 7.5 | 0.15 | 0.06 | 0.03 | ||
| 460-680 | 10.00 | 19.00 | 0.50 | 1.00 | 0.02 | 0.02 | 0.02 | ||||
| 550-760 | 10.00 | 18.00 | 1.00 | 2.00 | 0.03 | 0.05 | 0.03 | ||||
| 490-690 | 12.00 | 17.00 | 2.50 | 0.50 | 1.00 | 0.02 | 0.02 | 0.02 | |||
| 490-600 | 12.00 | 17.00 | 2.50 | 0.50 | 1.00 | 0.02 | 0.02 | 0.02 | Nitrogene 0.14 | ||
| 580-800 | 13.00 | 17.50 | 2.75 | 1.00 | 2.00 | 0.03 | 0.05 | 0.03 | |||
| 500-730 | 12.00 | 17.50 | 2.25 | 1.00 | 2.00 | 0.08 | 5.00 0.05 | 0.03 | |||
| 600-980 | |||||||||||
| 600-980 | |||||||||||
| HB217 | 900 | 63 | 11.0/15.0 18.0/20.0 | 3.0/4.0 | 0.75 | 2.00 | 0.03 | 0.04 | 0.03 | ||
| 9.0/12.0 | 17.0/19.0 | - | 1 | 2 | 0.04/0.10 | 5C/0.80 0.04 | 0.03 | ||||
| 800-950 | 0.50 | 12.00 | 0.35 | 0.50 | 0.14 | Nb 0.18 | |||||
| 930-1080 | 0.55 | 11.10 | 0.60 | 0.35 | 0.70 | 0.17 | V 0.3 Nb 0.28 | ||||
| 84-97HRB | 700 | 86 | 0.25 | 12.3 | 0.04 | 0.35 | 0.35 | 0.15 | 0.005 0.1 0.025 | 0.005 | Nb 0.45 |
| 71HRB | 430 | ||||||||||
| 75HRB | 450 | 87 | 0.60 | 12.00 | 1.00 | 1.00 | 0.08 | 0.04 | 0.03 | ||
| 300-500HB | 1050-1300 | 12/14 | 0.60 | 1.00 | 1.25 | 0.15 | 0.06 | 0.15 | |||
| 640-840 | 1.00 | 17.00 | 0.50 | 1.00 | 1.25 | 0.12 | 0.06 | 0.15 | |||
| 45/56HRc | 1270-1650 | ||||||||||
| - | 16.0/18.0 | 0.75/1.25 | 1 | 1 | 0.12 | 0.04 | 0.03 | ||||
| 568-818 | 81 | 0.23 | 17.0/19.0 | 0.55 | 0.45 | 0.012 | 0.4 0.02 | 0.001 | |||
| 31-54HRC | 1000-1800 | 81 | 0.5 | 16.0/18.0 | 0.75 | 1 | 1 | 0.07 | 0.04 | 0.03 | |
| 82 | 16.5 | 1 | |||||||||
| HRB82 | 520 | 79 | 0.3 | 18 | 0.34 | 0.35 | 0.009 | 0.29 0.05 0.023 | 0.002 | Nb 0.71 | |
| 620 | 24.50 | 20.50 | 4.50 | 0.50 | 1.60 | 0.02 | 0.04 | Cu 1.5 | |||
| 620 | 25.00 | 14.50 | 1.25 | 0.20 | 0.20 | 0.04 | 2.10 0.02 | 0.00 | |||
| 90HRB | 610 | 65 | 0.3 | 29 | 4 | 0.35 | 0.5 | 0.02 | 0.03 | 0.01 | Nb 0.6 |
| 183HB | 600 | 48 | 24 | 20.5 | 6.3 | 0.4 | 0.4 | 0.02 | 0.2 N 0.22 | ||
| 183HB | 600 | 45 | 25.3 | 21.8 | 6.7 | 0.3 | 0.3 | 0.02 | 0.02 | 0.2 N 0.24 | |
| 1175 | 4.30 | 16.50 | 2.80 | 0.30 | 0.80 | 0.09 | 0.02 | ||||
| 350-575HV | 1130-1860 | 82.4 | < 0.8 | 13 | 1.2 | 0.6 | 1.6 | 0.22 | 0.03 | 0.18 | |
| 440-640 | |||||||||||
| 440-640 | |||||||||||
| 1300-1700 | 10.8/11.3 11/12 | 0.8/1.2 | 1.5/1.8 | ||||||||
| 300-350HB | 1100 | 2.30 | 15.30 | 2.10 | 0.30 | 15.10 | 0.03 | N 0.4 | |||
| 31HRC | 1000 | 73.8 | 3.5 | 21 | 1.7 | ||||||
| 246HB | 800 | 1.5 | 22 | 0.55 | 0.75 | 2.5 | 0.03 | 0.04 | 0.02 | 0.4 |
| Material Gu | ide –Keyto Recommended Inserts Material Designation | ||
| P Unalloyed Steels | P Alloyed Steels | M Stainless Steels | M K N S H PH Stainless Aluminum & Alloys High Temp. Alloys Hard Materials Cast Irons |