NM400 Abrasion Resistant Steel Plate And NM500
NM400 abrasion resistant steel plate and NM500
一, the main difference between 400 wear-resistant plates and 500 wear-resistant plates is that their hardness is not the same, if you choose 400, its hardness requirements are between 350 and 450. If you choose a wear-resistant plate 500, its hardness requirements are between 480 and 560. Material also has a lot of division, such as some choice is Q355gnh or Q275nh, generally used in outdoor, can also be used for indoor decoration. It can also be made for railway vehicles or platforms for oil production, including manufacturing containers and so on. Specifications can be divided according to hardness, for example, the main grades are nm400, nm500, and the hardness increases. Different materials, their thickness, width and length are different, but basically the width is 2200 mm, the length is 8000 mm, and some can reach 12000 mm.
二 there is a difference, that is, the processing technology is not the same, and the welding performance is also different. Because the production process is different, so their cost is not the same, the market price is different, under normal circumstances 500 is more expensive than 400.
Chemical Composition
| Grade | C | Si | Mn | P | S | Cr | Mo | Ni | Bt |
| NM400 | ≤0.30 | ≤0.70 | ≤1.60 | ≤0.025 | ≤0.010 | ≤1.00 | ≤0.50 | ≤0.70 | 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 |
Mechanical Properties
| Grade | Tensile Strength | Elongation | Impact test(-20°) | HBW |
| NM400 | ≥1200 | ≥10 | ≥24 | 370-430 |
| NM500 | / | / | / | ≥470 |
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