Chemical Cheebtsam
| Chemical Cheebtsam | ||||||
| Hom | Chemical Cheebtsam | |||||
| C | Mn | Si | Cr | S | P | |
| 45 # | 0.42-0.48 Nws | 0.50-0.80 Nws | 0.17-0.37 Nws | ≤ 0.25 | ≤ 0.035 | ≤ 0.035 |
| 50 Mn | 0.48-0.56 Nws | 0.70-1.00 Nws | 0.17-0.37 Nws | ≤ 0.25 | ≤ 0.035 | ≤ 0.035 |
| 60 Mn | 0.57-0.65 Nws | 0.70-1.00 Nws | 0.17-0.37 Nws | ≤ 0.25 | ≤ 0.035 | ≤ 0.035 |
| 65mn ua | 0.62-0.70 Nws | 0.90-1.20 Nws | 0.17-0.37 Nws | ≤ 0.25 | ≤ 0.035 | ≤ 0.035 |
| B2 | 0.75-0.85 Nws | 0.70-0.90 Nws | 0.17-0.37 Nws | 0.40-0.60 Nws | ≤ 0.030 | ≤ 0.030 |
| B3 | 0.55-0.65 Nws | 0.75-0.90 Nws | 0.20-0.37 Nws | 0.85-1.20 Nws | ≤ 0.030 | ≤ 0.030 |
| B4 | 0.58-0.66 Nws | 0.65-0.80 Nws | 1.60-1.90 Nws | 0.70-0.90 Nws | ≤ 0.030 | ≤ 0.030 |
| B6 | 0.97-1.03 Nws | 1.00-1.10 Nws | 0.20-0.30 Nws | 0.50-0.60 Nws | ≤ 0.025 | ≤ 0.025 |
| Mechanical Properties | ||||||||
| Khoom siv | Hardness (HRC) | Kev cuam tshuam | Caij nplooj zeeg | |||||
| Φ20-Φ50 | Φ60-Φ90 | Φ100-Φ150 | ||||||
| Nto | Core | Nto | Core | Nto | Core | |||
| 45 # | ≥54 | ≥36 | ≥54 | ≥34 | ≥52 | ≥30 | ≥15 | ≥22000 |
| 50 Mn | ≥58 | ≥38 | ≥58 | ≥36 | ≥55 | ≥32 | ≥15 | ≥22000 |
| 60 Mn | ≥60 | ≥42 | ≥60 | ≥40 | ≥58 | ≥36 | ≥15 | ≥22000 |
| 65mn ua | ≥60 | ≥42 | ≥60 | ≥40 | ≥58 | ≥36 | ≥15 | ≥22000 |
| B2 | ≥60 | ≥60 | ≥60 | ≥50 | ≥60 | ≥46 | ≥15 | ≥22000 |
| B3 | ≥60 | ≥60 | ≥60 | ≥50 | ≥60 | ≥48 | ≥15 | ≥22000 |
| B4 | ≥60 | ≥60 | ≥60 | ≥55 | ≥60 | ≥52 | ≥15 | ≥22000 |
| B6 | ≥60 | ≥60 | ≥60 | ≥59 | ≥60 | ≥55 | ≥15 | ≥22000 |














