NM450 Wear Abrasion Resistant Steel
effect：Provide protection where wear resistance is required
Chemical composition：C Si Mn P S Mo Cr Ni B
nature：High strength wear-resistant steel plate
NM450 Wear Abrasion Resistant Steel
NM450 is a high strength wear-resistant steel plate. It is mainly to provide protection in the occasions or parts of the coarse need to wear, so that the equipment life is longer, reduce the maintenance and shutdown caused by less maintenance, and correspondingly reduce the investment of funds.
N is the first pinyin letter for "resistant" in "wear resistant". know
M is the first pinyin letter for "wear" in "wear".
450 is the Brinell Hardness number HB value
1、NM450Delivery standard
| mark | standard | Close product（JFE） | Close product（SSAB） |
|---|---|---|---|
| NM450 | GB/T 24186-2009 | EH450 | HARDOX450 |
2、NM450Availability range
| mark | drawing direction | strength of extensionMpa | rate elongationA50% | Brinell HardnessHBW | Offer Specificationmm |
|---|---|---|---|---|---|
| NM450 | crosswise | ≥1250(1550) | ≥8 | ≥470 | 2.0～25.4 × 1000～2000 |
3、NM450wear-resisting property
Wear-resistant steel has excellent wear resistance. The following is the wear resistance comparison between wear-resistant steel and wear-resistant steel from well-known foreign manufacturers:
Table 1 Abrasive wear test results with impact
| mark | impact energy /J |
Pre-wear mass /g | Post-wear quality /g | Loss of wear /g | relative wear resistance |
|---|---|---|---|---|---|
| NM450 | 2 | 14.80762 | 14.7071 | 0.10052 | 1.0625 |
| HARDOX450 | 2 | 15.00051 | 14.89371 | 0.10680 | 1 |
| NM450 | 4 | 15.67336 | 15.50789 | 0.16547 | 1.03197 |
| HARDOX450 | 4 | 14.36629 | 14.19553 | 0.17076 | 1 |
Table 2 Abrasive wear test results without impact
| mark | wearing- in period /h | Pre-wear mass /g | Post-wear quality /g | Loss of wear /g | relative wear resistance |
|---|---|---|---|---|---|
| NM450 | 36 | 16.62430 | 16.60013 | 0.02417 | 1.093 |
| HARDOX450 | 36 | 15.74163 | 15.71521 | 0.02642 | 1 |
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