Application
It is widely used in mining machinery, environmental protection machinery, cement machinery, engineering machinery etc due to it is high wear resistance.
| Steel/Grade | C | Si | Mn | P | S | AL | Cr+Ni+Mo | Nb+V+Ti |
| NM360/AR360 | 0.10-0.30 | 0.20-0.40 | 1.00-2.00 | ≤0.015 | ≤0.003 | ≥0.20 | <0.6 | |
| NM400/AR400 | 0.10-0.40 | 0.20-0.40 | 1.00-2.00 | ≤0.015 | ≤0.0003 | ≥00.20 | <0.9 | |
| NM450/AR450 | 0.10-0.40 | 0.20-0.40 | 1.00-2.00 | ≤0.015 | ≤0.003 | ≥0.20 | <1.2 | |
| NM500/AR500 | 0.10-0.40 | 0.20-0.45 | 1.00-2.00 | ≤0.015 | ≤0.003 | ≥0.20 | <1.5 | Trace Amount |
| NM550/AR550 | 0.10-0.50 | 0.20-0.45 | 1.00-1.50 | ≤0.015 | ≤0.003 | ≥0.20 | <2.0 | |
| NM600/AR600 | 0.10-0.50 | 0.20-0.45 | 1.00-1.50 | ≤0.015 | ≤0.003 | ≥0.20 | <2.5 |
| Mechanical property | ||||
| Grade | Tensile strength | Elongation | Hardness | -20ºC Impact energy |
| (Mpa) | (%)(min) | (HBW) | AKv/J (min) | |
| NM360 | ≥1100 | 12 | 330-390 | 24 |
| NM400 | ≥1200 | 10 | 370-430 | 24 |
| NM450 | ≥1250 | 7 | 420-480 | 24 |
| NM500 | 470(min) | |||
| NM550 | 530(min) | |||
| NM600 | 570(min) | |||