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Wear-Resistant Alloy Steel Plate NM500/AR500/NM400/AR400/NM450/AR450 with Industrial Manufacturing/Mining/Construction/Material Handling
In construction and fabrication, the grade and composition of the steel plate materials used make a huge impact on the final product. Abrasion resistant steel plate is a common steel plate that boasts a harder, tougher quality that lasts about four times longer than ordinary high-strength structural steel plate.
Abrasion resistant (AR) steel plate is a high-carbon alloy steel plate. This means that AR is harder due to the addition of carbon, and formable and weather resistant due to added alloys.
AR material is produced by quenching and tempering forged steel blocks, or ingots.
Main Grade
Germany:XAR400,XAR450,XAR500,XAR600,Dillidur400,Dillidur500
Belgium:QUARD400,QUARD450,QUARD500
France:FORA400,FORA500,Creusabro4800,Creusabro8000
HBIS:NM360,NM400,NM450,NM500
Finland:RAEX400,RAEX450,RAEX500
Japan:JFE-EH360,JFE-EH400,JFE-EH500,WEL-HARD400,WEL-HARD500
Production Process
1.Steelmaking process Flow Chart
Blast Furance+Hot Metal Ladle Truck+KR Hot Metal Treatment+Converter+LF Refining Furnace+RH Vacuum Degassing Furance+Con-cast
2.Rolling Process Flow Chart
Reheating Furance+High-pressure Water Descaling+Edger Mill+Roughing Mill+Finishing Mill+Accelerated cooling+Hot Leveler+Marking and Spray Printing+Cooling Bed+On-line UT+Crop Shear+Double-side Trimming Shear+Cut-to-length Shear+Measurement+Marking and Spray Printing+Cold Leveler/Heat treatment
3.Heat-Treatment Flow Chart
Plate+Shot Blasting+Quenching Furance+Quenching Machine+Tempering Furance+Warm Leveler+Cooling Bed+Cutting+Cold Leveler+Finishing&Packaging
Chemical Composition (%)
| Steel Grade | C | Si | Mn | P | S | Al | Cr+Ni+Mo |
| NM400 | 0.10-0.40 | 0.20-0.40 | 1.00-2.00 | Max 0.015 | Max 0.003 | Min 0.020 | Max 0.9 |
| NM450 | 0.10-0.40 | 0.20-0.40 | 1.00-2.00 | Max 0.015 | Max 0.003 | Min 0.020 | Max 1.2 |
| NM500 | 0.10-0.40 | 0.20-0.45 | 1.00-2.00 | Max 0.015 | Max 0.003 | Min 0.020 | Max 1.5 |
| NM550 | 0.10-0.50 | 0.20-0.45 | 1.00-1.50 | Max 0.015 | Max 0.003 | Min 0.020 | Max 2.0 |
| NM600 | 0.10-0.50 | 0.20-0.45 | 1.00-1.50 | Max 0.015 | Max 0.003 | Min 0.020 | Max 2.5 |
The technical difference between AR400, AR450 and AR500 is the Brinell Hardness Number (BHN), which indicates the material's level of hardness. Materials with higher BHNs have greater levels of hardness, while materials with lower BHNs have lower levels of hardness:
AR400: 360-440 BHN Typically
AR450: 430-480 BHN Typically
AR500: 460-544 BHN Typically
AR600: 570-625 BHN Typically
Applications
Carbon added during the formation of the steel plate substantially increases toughness and hardness, but reduces strength. Therefore, AR plate is used in applications where abrasions and wear and tear are the main causes of failure, such as industrial manufacturing, mining, construction and material handling.
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