Hot Rolled Nm 400 Nm450 Nm500 High Strength Wear Resistance Steel Sheet Customized Used for Cutting Tools
steel name | wear resistant steel plate | |||||
steel grade | NM360 | NM400 | NM450 | NM500 | NM550 | NM600 |
thickness | 6-120mm | 6-120mm | 6-120mm | 6-70mm | 6-70mm | 6-60mm |
tensile strength/Mpa | ≥1100 | ≥1200 | ≥1250 | |||
enlongation/% | ≥12 | ≥10 | ≥7 | |||
-20ºC longitudinal impact value/J | ≥24 | ≥24 | ≥24 | ≥24 | ||
hardness/HB | 330-390 | 370-430 | 420-480 | ≥470 | ≥530 | ≥570 |
Chemical Composition
Name | C | Si | Mn | P | S | Cr | Ni | Mo | Ti | B | Als | CEV |
less | more | less | ||||||||||
NM360 | 0.25 | 0.70 | 1.60 | 0.025 | 0.015 | 0.80 | 0.50 | 0.50 | 0.050 | 0.0005-0.006 | 0.010 | 0.48 |
NM400 | 0.30 | 0.70 | 1.60 | 0.025 | 0.010 | 1.00 | 0.70 | 0.50 | 0.050 | 0.0005-0.006 | 0.010 | 0.57 |
NM450 | 0.35 | 0.70 | 1.70 | 0.025 | 0.010 | 1.10 | 0.80 | 0.55 | 0.050 | 0.0005-0.006 | 0.010 | 0.59 |
NM500 | 0.38 | 0.70 | 1.70 | 0.020 | 0.010 | 1.20 | 1.00 | 0.65 | 0.050 | 0.0005-0.006 | 0.010 | 0.64 |
NM360 and NM400, Si and Mn composition can be enhance to 2.00% and 2.20%. |
Advantages of wear plates
1. Good impact resistance
The wear-resistant composite steel plate is made of low-carbon steel or low-alloy, stainless steel and other tough materials as the base material. The metal material not only has good wear resistance, but also can withstand impact and wear such as falling from a height during the transportation process.
2. Good heat resistance
The alloy wear-resistant layer is made of vanadium, molybdenum and other alloy materials in the production process, so it can be used and worn at a high temperature of ≤800 °C. Compared with ordinary carbon steel substrates, it can only be used below 380°C, and low-alloy heat-resistant steel sheets work below 540°C. This shows how high the heat resistance coefficient of the wear plate is.
3. Good corrosion resistance
The wear-resistant plate contains a large amount of metallic chromium, so it has good anti-rust and anti-corrosion properties. It is especially suitable for the use of coal drop drums and funnels. Not only solid and firm, but also to prevent coal sticking.
FAQ
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SHANDONG TONGMAO SPECIAL STEEL CO.,LTD