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X120 MN12 steel plate is an austenitic manganese steel. It is an abrasion-resistant steel with high impact strength and hardness. The material is in the high-carbon, non-magnetic, and work-hardening category of stainless steels. Here are some common types of the steel plate:
When austenitic manganese is heated to a specific temperature, it normalizes. Afterward, it cools down slowly. The process enhances the steel plate's toughness and wear resistance. It provides better performance in heavy applications. It also improves the material's machinability and facilitates work-hardening upon impact.
Quenching and tempering involves heating the steel plate to a high temperature, followed by rapid cooling. The steel is then reheated to a lower temperature. This treatment increases the tensile strength and hardness, making the plate suitable for heavy-duty applications requiring high wear resistance and durability.
Ultra-high-strength steel plates maintain the basic properties of standard X120 MN12 steel. However, they undergo additional heat treatments to achieve extreme hardness levels. The plates are ideal for highly abrasive environments. Here, even minor impacts result in significant work-hardening.
The as-rolled plate is in the state it comes from the rolling process without any further heat treatments or processing. The property of the plate maximizes its flexibility in application and forms especially brittle surfaces. These surfaces are fitted in specific use cases where immediate hardening is not important.
The outstanding features of the abrasion plate make it ideal for various industrial applications. Here are some of them:
The mining industry employs X120 MN12 steel plates to manufacture wear-resistant components. These parts include chutes, hoppers, and liners, which experience high levels of abrasion and impact. The steel's work-hardening properties extend the lifespan of these parts. This improves efficiency and reduces the need for frequent replacements in severe mining conditions.
Farm equipment is usually modified to have longer-lasting parts by using X120 MN12 steel alloy. The plates resist wear from soil and crop interaction in tillage equipment, plows, and harrows. Other farming equipment includes mixers and augers that utilize the steel plates. The durability keeps essential farm machinery operational, minimizing costly downtime from equipment failures.
The construction industry forms applications like bucket liners, cutting edges, and wear plates for excavating equipment using X120 MN12 steel plates. These parts endure large amounts of stress and abrasion from earth-moving operations. X120's ability to work-harden provides long-lasting protection against wear, saving construction companies time and money.
In heavy industries, including cement and power plants, the steel plate is useful in high-wear areas like transfer points and chutes. The cement and power plants handle abrasive materials leading to rapid deterioration. They also experience severe impacts from material movement. The steel plate's hardness and toughness minimizes wear for these industries.
The steel plate is crucial to railway systems, particularly in areas of high-stress and abrasion, like tracks and switches. The demanding conditions of heavy freight trains cause significant wear to rail components. However, the unique properties of X120 steel plates ensure they withstand these forces with minimal degradation.
Here are some key features and specifications of X120 MN12:
Tensile strength
The abrasion steel plates have a tensile strength of 1000 MPa. The property allows it to withstand significant pulling forces without deforming. This makes it ideal for heavy-duty machinery, mining equipment, and structural components under extreme stress.
Yield strength
The yield strength of the manganese steel plate is 580 MPa. It ensures the material can bear substantial loads before permanent deformation. It retains its shape and functionality during regular operational conditions in high-impact environments.
Hardness
The Hardness Brinell number of the plate ranges from 250 to 300 HB. This is depending on the specific heat treatment undergone by the plate. The high hardness level grants exceptional wear resistance. It is particularly suited for mining, construction, and heavy industry applications.
Elongation
The elongation of X120 steel plates is about 20 percent. Though considerable bending and stretching before failure occur, the steel remains ductile. This allows complex shapes vital for components subjected to heavy dynamic loads in various industrial scenarios.
The chemical composition of X120 MN12 steel plates includes:
Manganese
Manganese makes up 11-14 percent of the steel's composition. It imparts toughness, hardness, and work-hardening ability to the steel. Manganese also improves the steel's resistance to wear and abrasion. This makes it ideal for heavy-duty applications.
Carbon
The carbon content of the steel plate is 0.9-1.3 percent. The carbon level enhances the steel's hardness through heat treatment. Carbon contributes to the material's ability to work-harden upon impact. This ensures the steel becomes tougher with usage.
Chromium
Chromium is in the steel at approximately 0.2-1 percent. The element increases the corrosion resistance of the alloy. It also strengthens the steel and improves its wear resistance. The presence of chromium is crucial for applications in harsh environments.
Iindium
This element is present as 0.3 percent maximum. Although not typical in every batch, indium inclusion allows for finer grain structure when essential. It contributes to homogeneity and consistency in the steel's wear-resistant properties.
Silicon
Silicon is present at a maximum of 0.6 percent. It acts as a deoxidizer during steel production, improving overall steel quality. It contributes to the steel's strength and hardness, particularly after work-hardening has occurred in demanding conditions.
Pre-installation
Prior to installing the X120 MN12 steel plate, the users should conduct a proper surface preparation. It will ensure the area is free from debris and contaminants. User should inspect the mounting surfaces for evenness, as any irregularities may affect the stability. Further, the elements should be cut precisely to the required dimensions using appropriate tools like plasma cutters or diamond saw blades.
Installation
Users should ensure that users use heavy-duty equipment. Such types of equipment include cranes or fork lifts to handle the steel plates, as they are very dense and heavy. Use suitable fasteners or welding methods to securely mount the plate where required. Also, remember to wear safety gear during the handling as a precaution due to its heaviness.
Post-installation
After installing, the users should carry out periodic inspections. Go check whether there are signs of wear or loosening in the steel plates. Maintenance should also be done frequently. Users should keep the steel plate clean and free from abrasive materials. Further, lubricating the fasteners may prolong the life of the installation.
Pre-transportation
Prior to transportation, the user should conduct a proper risk assessment calculation. It will help the users determine what possible harsh impacts or weather conditions the steel plates will encounter during the travel period. Further, they should secure each plate individually with heavy-duty straps and binders. Further, cover the plates with weather-resistant tarps to protect them from adverse environmental conditions.
Transportation
Users should use an appropriate-sized vehicle. Due to these steel plates being very heavy and dense, they will need a vehicle with a strong payload capacity. Further, ensure that the centre of gravity is low and properly distributed for stability during the transportation process. Also, avoid making abrupt movements to minimize the risk of internal damage coming up.
Regular inspections
Users should routinely check the X120 MN12 steel plate for signs of wear, corrosion, or cracking. Early detection of minor damages will help prevent major failures. So, it's advisable to conduct frequent inspections.
Proper cleaning
To maintain the integrity of the plate, users should keep it clean from abrasive materials. Use a wire brush, pressure wash, or mild detergent to remove dirt, debris, and corrosive substances. It's advisable to avoid harsh chemicals that may damage the surface.
Lubrication
Users should apply anti-corrosion oils or coatings to areas prone to rust. It will be especially necessary in outdoor or humid environments. Regular lubrication will minimize corrosion and provide a protective barrier against moisture.
Surface monitoring
Users should pay close attention to any surface cracks or splaying. These are generally produced by welding heat. Further, they should inspect the surface regularly for small fissures or micro-cracks. If there is any existence of surface cracks, they should be immediately addressed.
Electrode-based welding is the most preferred procedure for joining manganese steels. Often, professionals use electrodes with high manganese content. It helps to restore the essential properties of the welded area. Thus, it adapts the heat, increasing the hardness of the weld zone to match the surrounding steel.
The steel plate is very difficult to cut due to its high abrasion resistance. Therefore, for a successful cutting operation, one should use a diamond blade with a minimum power of 3,5 kW per wheel. Use blades with teeth made of either tungsten carbide or diamond for more efficiency.
Work-hardening is beneficial when users use the abrasion plate in industrial applications. It gradually increases the plate's hardness and strength over time. Normally, it occurs when it undergoes repetitive impacts or abrasions. Further, it allows the material to deepen its wear resistance, extending the lifetime of critical components.
The steel's high-carbon content forms a unique microstructure upon hardening. It enhances wear resistance while maintaining ductility. Also, the significant manganese level contributes to exceptional toughness, impacts strength, and work-hardening ability. These properties also make the steel highly durable in abrasive conditions.
The steel plates are highly vulnerable to moisture and oxygen when users use them in outdoor applications. Therefore, implementing surface treatments like galvanizing or powder coating builds a protective barrier against corrosion. It prolongs the life of the steel plate allowing it to be more efficient in outdoor applications.
