Introduction of NM400 steel plate
The hardness of the surface of the wear-resistant plate is very high, and the service life is long, and its main components are low-carbon steel plate and alloy wear-resistant layer, of which the alloy wear-resistant layer occupies 1/2~1/3 of the thickness of the whole plate; Because the main chemical component in it is chromium, which can reach 20%~30% of the content of all materials, its wear resistance is very good.
Common grades of wear plates: NM360 / WNM360 / NM400 / WNM400 / NM450 / WNM450 / NM500 / WNM500 Brinell hardness of wear plates:
NM360 / WNM360: 320-400HB
NM 400 / WNM400: 360-440HB
NM450 / WNM450 : 410-490HB
NM500 / WNM500 : 460-540HB
| Chemical composition |
| Tabulation: Depu Steel Date: 2024-01-18 |
| C |
Si |
Mn |
P |
S |
N |
| ≤0.21 |
≤0.55 |
≤1.7 |
≤0.03 |
≤0.03 |
≤0.02 |
Note:
(1): In order to improve the properties of steel, the number of other trace alloying elements other than the above table can be added; It comes from the Internet and is for reference only.
(2): The allowable deviation of the chemical composition of the finished steel plate should be in line with the characteristics of the wear-resistant plate in accordance with the provisions of GB/T222: 1. Impact resistance:
The impact resistance of the wear-resistant plate is very good, and in the process of
conveying materials, even if there is a very high drop, it will not cause much damage to the wear-resistant plate.
2. Heat resistance: Under normal circumstances, wear-resistant plates below 600 degrees can be used normally, and if we add some vanadium and molybdenum when making wear-resistant plates, then there is no problem with high temperatures below 800 degrees.
3. Corrosion resistance: Because the wear-resistant plate contains a large amount of chromium, the corrosion resistance of the wear-resistant plate is excellent, and there is no need to worry about corrosion.
4. Cost-effective: The price of wear-resistant plate is 3~4 times that of ordinary steel plate, but the service life of wear-resistant plate is more than 10 times longer than that of ordinary steel plate, so its cost performance is relatively high.
5. Easy processing: The weldability of the wear-resistant plate is very strong, and it can also be very convenient to bend into various shapes, which is very convenient to process.
