Description
Wear Resistant Steel Plate NM400, NM450, NM500
Wear resistant steel plate NM400, NM450, NM500 etc. is from Chinese main factory XINGCHENG SPECIAL STEEL with prime quality, and the plate is widely used in mining machinery, cement industries, quarry, construction machinery, environmental protection machinery, metallurgical machinery, loader, blade plate, side blade plate.
| Grade | C | Si | Mn | P | S | Cr | Mo | Ni | Bt |
| NM360 | ≤0.25 | ≤0.70 | ≤1.60 | ≤0.025 | ≤0.015 | ≤0.80 | ≤0.50 | ≤0.50 | 0.0005-0.006 |
| NM400 | ≤0.30 | ≤0.70 | ≤1.60 | ≤0.025 | ≤0.010 | ≤1.00 | ≤0.50 | ≤0.70 | 0.0005-0.006 |
| NM450 | ≤0.35 | ≤0.70 | ≤1.70 | ≤0.025 | ≤0.010 | ≤1.10 | ≤0.55 | ≤0.80 | 0.0005-0.006 |
| NM500 | ≤0.38 | ≤0.70 | ≤1.70 | ≤0.020 | ≤0.010 | ≤1.20 | ≤0.65 | ≤1.00 | 0.0005-0.006 |
| NM550 | ≤0.38 | ≤0.70 | ≤1.70 | ≤0.020 | ≤0.010 | ≤1.20 | ≤0.70 | ≤1.00 | 0.0005-0.006 |
| NM600 | ≤0.45 | ≤0.70 | ≤1.90 | ≤0.020 | ≤0.010 | ≤1.50 | ≤0.80 | ≤1.00 | 0.0005-0.006 |
GB Specification Abrasion Resistant Steel Chemical Composition
| Grade | Tensile Strength | Elongation | Impact test（-20°） | HBW |
| NM360 | ≥1100 | ≥12 | ≥24 | 330-390 |
| NM400 | ≥1200 | ≥10 | ≥24 | 370-430 |
| NM450 | ≥1250 | ≥7 | ≥24 | 420-480 |
| NM500 | / | / | / | ≥470 |
| NM550 | / | / | / | ≥530 |
| NM600 | / | / | / | ≥570 |
AR400 VS AR450 VS AR500
The technical difference between AR400, AR450 and AR500 is the Brinell Hardness Number (BHN), which indicates the material’s level of hardness:
AR400: 360-440 BHN Typically
AR450: 430-480 BHN Typically
AR500: 460-544 BHN Typically
Projects that require AR materials are typically those that need a specific balance between hardness and brittleness. As you increase hardness, you also increase brittleness, making the material difficult to form, shape and weld. For some projects, hardness is critical, so brittleness is sacrificed. But in other cases, the material must be formed and handled, so the level of hardness must be reduced.
