What is NM 400 abrasion resistant steel?
NM400 wear-resistant steel plate is a high-strength wear-resistant steel plate. “NM” is the first letter of the Chinese pinyin for “wear-resistant”, and “400” represents that the average Brinell hardness of this steel plate is about 400, but the hardness range of domestic NM400 is usually between 360 and 420HB.
Implementation standard: GB/T 24186-2022 “High-strength wear-resistant steel plate”.
Delivery status: Usually delivered in the quenched and tempered (quenched + tempered) state, and can also be delivered in the quenched, TMCP + tempered or hot-rolled state according to demand.
Smelting method: Use converter or electric furnace smelting, and perform refining outside the furnace to ensure the purity and uniformity of the molten steel.
NM 400 Wear Resistant Plate Parameter:
Chemical Properties Of NM400 Wear Resistant Steel Plates:
| Grade | C | Si | Mn | P | S | Cr | Ni | Mo | Ti | B | Als |
| NM400 | ≤0.30 | ≤0.70 | ≤1.60 | ≤0.025 | ≤0.010 | ≤1.20 | ≤0.70 | ≤0.50 | ≤0.50 | 0.0005-0.006 | ≥0.01 |
Mechanical Properties Of NM 400 Wear Resistant Plates:
| Grade | Mechanical Property | ||
| NM 400 | Yield | Tensile | Elongation |
| Min Mpa | Mpa | Min % | |
| 1000 | 1200 | 10 | |
| NM400 | Thickness | Hardness (HB) |
| ≤80mm | 370~430 | |
| ＞80~120mm | 360~440 |
Relevant NM400 Specification and NM400 Steel Equivalent Steel Grades
| GBT 24186 | JFE | SUMITOMO | DILLIDUR | SSAB |
| NM400 | JFE-EH400 | K400 | 400V | Hardox400 |
Where is NM400 wear steel plate used?
- Wear-resistant spare parts, such as high-efficiency powder selecting wear-resistant parts in cement machinery, mill steel plates, mixer blades, fan blades, mill rollers and so on.
- Various wear-resistant conveying pipes, such as powder air conveying system, blast furnace slag system, propeller blades, etc.
- Customized welding solutions for completing on-site construction projects, such as silos, chutes, large buckets, etc.
- Providing fabrication devices for on-site customized welding repairs to reduce on-site welding workload, such as buckets for work machines and dredging buckets for dredgers.
