NM450 is a high-strength wear-resistant steel plate that is mainly used to provide protection in occasions or parts that require wear resistance, so that the equipment has a longer life, reduces maintenance and downtime caused by less maintenance, and correspondingly reduces capital investment.
N is the first pinyin letter of "resistant" in "wear-resistant".
M is the first pinyin letter of "wear" in "wear-resistant".
450 is the Brinell hardness value HB. (The hardness value of 450 is a broad sense, and the domestic NM450 hardness value is around 450.)
Chemical Composition(%):
| Steel Grade | C | Si | Mn | P | S | Cr | Ni | Mo | B |
| NM450 | 0.26 max | 0.70 max | 1.60 max | 0.025 max | 0.015 max | 1.50 max | 1.00 max | 0.50 max | 0.004 max |
Mechanical Properties:
| Steel Grade | Y.S (MPa) | T.S (MPa) | Elongation A5(%) | Impact Test | Hardness | |
| min | min | min | (°C) | AKV J(min) | HBW | |
| NM450 | 1250 | 1500 | 10 | -20 | 30 | 410-490 |
