Mn13

Product Features:

High carbon high manganese Mn13 wear-resistant steel is an austenitic work-hardening steel that exhibits significantly enhanced wear resistance after being subjected to vibrations or impact pressures. The main advantage of this steel is its exceptional wear resistance. Under impact load and wear conditions, its surface can induce martensitic phase transformation through the deformation of austenitic structure, thereby significantly increasing the hardness and strength of the surface layer. At the same time, because the base inner layer maintains the austenitic structure, it still has high ductility.

In practical applications, this steel shows obvious work hardening phenomena within the deformation layer, and the surface hardness is significantly increased. The high hardness hardened layer can effectively resist impact and abrasive wear. Under conditions of strong impact and abrasive wear, high manganese steel demonstrates excellent wear resistance, characterized by "the more impact, the more wear-resistant" property. At low impact loads, its surface hardness can reach 300-400 HB; and under high impact loads, it can be increased to 400-600 HB.

Application Fields of High Carbon High Manganese Mn13 Wear-Resistant Steel:

High carbon high manganese Mn13 wear-resistant steel is widely used in impact abrasive wear and high-stress crushing abrasive wear conditions, covering industries such as mining, cement, and coal mining. It is commonly used in the manufacture of mining equipment, such as loaders, mine cars, bulldozers, crushers, mixers, excavator buckets, grabs, loading car bodies, as well as coal mining machinery equipment, including blades in coal mining machines, shovels in tunneling machines, plates in scraper conveyors, scraper machines, and the baffles and chutes of crushers. In addition, it is also suitable for manufacturing mining dump truck bodies, shot peening machines, etc. High carbon high manganese Mn13 wear-resistant steel can also be used for manufacturing safes.

Standard Comparison

Chemical Composition

Mechanical Property

Processing performance

Thermal Cutting

Due to its low impurity content and uniform chemical composition, high carbon high manganese Mn13 steel exhibits excellent cutting properties. Plasma or laser cutting is recommended for thermal cutting. During the cutting process, it is advisable to increase the thermal capacity of the heat source and reduce the cutting speed, decreasing the flame nozzle travel speed by 30% compared to traditional low-alloy steel.

Mechanical Cutting

When cutting high carbon high manganese Mn13 steel plates with a shearing machine, a greater shearing force is necessary, and the blades must be sharp to ensure a smooth and even cut.

Machining

Owing to its pronounced work-hardening characteristics, high carbon high manganese Mn13 steel should be machined with a larger feed rate and at a reasonable cutting speed.

Drilling

For drilling, it is recommended to utilize cemented carbide drills or high-speed steel drills with cobalt for enhanced performance. Long twist drills with a 130° tip angle are preferred. Dry drilling is more effective, and the depth of the drill hole should not exceed three times the diameter. The drilling operation must be executed continuously without interruption.

Grinding

When grinding, it is advisable to use cemented carbide or high-speed steel with a carburized top surface. The recommended parameters include a grinding speed of 50 m/min and a feed rate of 0.2 mm per tooth.

Forming

High carbon high manganese Mn13 steel plates are very easy to form at room temperature without the need for preheating. Before forming, it is essential to grind off the hardened areas caused by mechanical edge cutting and to create a slight slope on the edge. The forming process should be conducted as slowly as possible.

Bending force formula: 𝑃=760×(𝑊×𝑡ℎ2/1000×𝐿)P=760×(W×th2/1000×L) where 𝑊W is the width, 𝑡ℎth is the thickness, and 𝐿L is the die opening.

Hot Forming

For hot forming of high carbon high manganese Mn13 steel, the minimum temperature must be above 850°C, followed by immediate water quenching. If the temperature is below 850°C before quenching, it is necessary to reheat to above 980°C.

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