Comprensione delle piastre d'acciaio resistenti all'usura: Hardox400 vs. NM400
Overview of HARDOX Piastra in acciaio resistente all'usura
HARDOX is a piastra in acciaio resistente all'usura produced by SSAB OXELOSUND, a key division of the SSAB Swedish Steel Group. As the world’s largest manufacturer of piastre d'acciaio resistenti all'usura, SSAB supplies products to over 100 Paesi. In 1999, the company established a representative office in Beijing, Cina, to serve industries such as cement and mining. IL HARDOX series is widely recognized for its durability and performance.
HARDOX400 and NM400: Naming and Hardness
The naming conventions of HARDOX400 E HARDOX500 are similar to domestic NM400 E NM500 steel plates. The numbers (400–500) indicate the Brinell hardness of the steel. Al contrario, “NM” in NM400 and NM500 stands for “wear resistance.”
Comparison of Mechanical Properties
Hardox400 vs. NM400
- HARDOX400 offers superior hardness and toughness.
- NM400 lacks yield strength and impact resistance in comparison.
| Composizione chimica (pre-furnace analysis) | |||||||||
| Grado | C % (Massimo) |
E % (Massimo) |
Mn % (Massimo) |
P % (Massimo) |
S % (Massimo) |
Cr % (Massimo) |
In % (Massimo) |
Mo % (Massimo) |
B % (Massimo) |
| HardoxHiTuf | 0.20 | 0.60 | 1.60 | 0.020 | 0.020 | 0.70 | 2.0 | 0.70 | 0.005 |
| Hardox 400 | 0.15 | 0.70 | 1.60 | 0.025 | 0.010 | 0.50 | 0.25 | 0.25 | 0.004 |
| Hardox450 | 0.26 | 0.70 | 1.60 | 0.025 | 0.010 | 1.40 | 1.50 | 0.60 | 0.005 |
| Hardox500 | 0.30 | 0.70 | 1.60 | 0.020 | 0.010 | 1.50 | 1.50 | 0.60 | 0.005 |
| Hardox550 | 0.37 | 0.50 | 1.30 | 0.020 | 0.010 | 1.40 | 1.40 | 0.60 | 0.004 |
| Hardox600 | 0.47 | 0.70 | 1.00 | 0.015 | 0.010 | 1.20 | 2.50 | 0.70 | 0.005 |
| Composizione chimica (pre-furnace analysis) | |||||||||
| Grado | C % (Massimo) |
E % (Massimo) |
Mn % (Massimo) |
P % (Massimo) |
S % (Massimo) |
Cr % (Massimo) |
In % (Massimo) |
Mo % (Massimo) |
B % (Massimo) |
| HardoxHiTuf | 0.20 | 0.60 | 1.60 | 0.020 | 0.020 | 0.70 | 2.0 | 0.70 | 0.005 |
| Hardox 400 | 0.15 | 0.70 | 1.60 | 0.025 | 0.010 | 0.50 | 0.25 | 0.25 | 0.004 |
| Hardox450 | 0.26 | 0.70 | 1.60 | 0.025 | 0.010 | 1.40 | 1.50 | 0.60 | 0.005 |
| Hardox500 | 0.30 | 0.70 | 1.60 | 0.020 | 0.010 | 1.50 | 1.50 | 0.60 | 0.005 |
| Hardox550 | 0.37 | 0.50 | 1.30 | 0.020 | 0.010 | 1.40 | 1.40 | 0.60 | 0.004 |
| Hardox600 | 0.47 | 0.70 | 1.00 | 0.015 | 0.010 | 1.20 | 2.50 | 0.70 | 0.005 |
HARDOX500 vs. NM500
- HARDOX500 provides better wear resistance under extreme conditions.
- NM500 has lower overall durability.
Why Choose HARDOX?
Compared to NM series plates, HARDOX400 E HARDOX500 offer enhanced resistenza all'usura, making them ideal for demanding applications. Their superior toughness ensures longer service life and better performance in heavy industries.
