info@gescosteel.com
NM400 is a kind of wear-resistant steel. NM - the "resistance" and "grinding", the first letter of the Chinese phonetic alphabet, 400 is the Brinell hardness value of HB. (400 the hardness value is generalized, the domestic NM400 hardness range is 360-420.)
NM400 wear-resistant steel plate is widely used in engineering machinery, mining machinery, coal mining machinery, environmental protection machinery, metallurgical machinery and other products. Excavator, loader, bulldozer bucket board, blade plate, side blade plate, blade. The lining plate and blade of the crusher.
The delivery state of the wear-resistant steel plate is divided into: quenching and tempering.
Mechnical property for NM400 Abrasion resistance steel
Tensile strength (≥Mpa) | -20℃ impacting test absorbed energy (Longi.J) | Elongation in ≥,% | HBW |
1200 | ≥24 | 50mm | 370-430 |
| 10 |
NM 400 Chemical Compositiom | |||||||||||
Plate | C | Si | Mn | P | S | Cr | Ni | Mo | B | CEV | CET |
thickness mm | max % | max % | max % | max % | max % | max % | max % | max % | max % | typv | typv |
3-（8） | 0.15 | 0.7 | 1.6 | 0.025 | 0.01 | 0.3 | 0.25 | 0.25 | 0.004 | 0.33 | 0.23 |
8-20 | 0.15 | 0.7 | 1.6 | 0.025 | 0.01 | 0.5 | 0.25 | 0.25 | 0.004 | 0.37 | 0.27 |
（20）-32 | 0.18 | 0.7 | 1.6 | 0.025 | 0.01 | 1 | 0.25 | 0.25 | 0.004 | 0.48 | 0.29 |
（32）-45 | 0.22 | 0.7 | 1.6 | 0.025 | 0.01 | 1.4 | 0.5 | 0.6 | 0.004 | 0.57 | 0.31 |
（45）-51 | 0.22 | 0.7 | 1.6 | 0.025 | 0.01 | 1.4 | 0.5 | 0.6 | 0.004 | 0.57 | 0.38 |
（51）-80 | 0.27 | 0.7 | 1.6 | 0.025 | 0.01 | 1.4 | 1 | 0.6 | 0.004 | 0.65 | 0.41 |
（80）-130 | 0.32 | 0.7 | 1.6 | 0.025 | 0.01 | 1.4 | 1.5 | 0.6 | 0.004 | 0.73 | 0.48 |