CR800/1180MTR is a medium manganese steel, which is an important material for the manufacture of train wheelsets and bearings. This kind of manganese steel is usually called “Mn steel” or “manganese steel”. Its main components are carbon and manganese, and it is produced under specific process conditions. The manganese steel used in CR800/1180MTR usually has excellent mechanical properties such as high strength, wear resistance and toughness, so as to meet the requirements of special working conditions such as high load and high speed when high-speed trains are running.

How is CR800/1180MTR medium manganese steel manufactured?

The manganese steel used in CR800/1180MTR is manufactured through a special smelting process. Normally, manganese steel contains high carbon and manganese elements, which can significantly enhance the mechanical properties of steel such as hardness, wear resistance and toughness.

The manufacturing process of manganese steel usually includes the following steps:

  1. Material selection: Select iron sources and other alloying elements with higher purity and appropriate chemical composition to ensure the quality of the final product.
  2. Smelting: Put the raw materials into a specific furnace for heating and melting, and at the same time add appropriate amount of alloying elements and deoxidizers, etc. to control the chemical composition and reduce the content of oxides.
  3. Pouring: After the molten pool reaches a certain temperature and chemical composition, it is poured into a pre-prepared mold and pressure is applied to obtain the desired shape and size.
  4. Tempering and quenching: Temper or quench the formed manganese steel to further improve its mechanical properties and mechanical properties.
  5. Surface treatment: Manganese steel is surface treated by grinding, polishing, spraying, etc. to improve its corrosion resistance and aesthetics.

What is the chemical composition of CR800/1180MTR medium manganese steel?

Generally speaking, the chemical composition of CR800/1180MTR medium manganese steel is as follows:

Carbon: 0.8%-1.2%

Manganese (Manganese): 11%-14%

Silicon (Silicon): 0.15%-0.80%

Phosphorus: less than or equal to 0.030%

Sulfur: less than or equal to 0.030%

Iron (Iron): balance

What are the mechanical properties of CR800/1180MTR medium manganese steel?

Tensile strength (TS): usually above 1000MPa;

Yield strength (YS): usually between 600-800MPa;

Elongation (EL): usually between 15% and 25%;

Impact toughness (Toughness): usually higher, can reach more than 80-100J/cm²;

Hardness: usually between 200-300HB.

What is the strength of CR800/1180MTR medium manganese steel?

The strength of CR800/1180MTR medium manganese steel is very high, and its tensile strength is generally above 800MPa. Compared with ordinary low-carbon steel, medium-carbon steel and low-alloy steel, medium manganese steel has higher strength and is suitable for occasions that need to withstand high load and high stress.

In addition, the hardness of medium manganese steel is relatively high, and it is usually subjected to heat treatment processes such as quenching and tempering to further increase its strength and hardness. This makes CR800/1180MTR medium manganese steel have excellent mechanical properties and durability, and is suitable for the manufacture of various important structural components and high-load components.

What are the characteristics of CR800/1180MTR medium manganese steel?

CR800/1180MTR is a high-strength, high-hardness medium manganese steel with the following characteristics:

High strength: The tensile strength of CR800/1180MTR is more than 800MPa, which belongs to high-strength steel and can withstand large loads in use.

Good toughness: Due to its moderate content, medium manganese steel has good toughness, that is, it is not easy to break when subjected to external impact.

Excellent wear resistance: The hardness of medium manganese steel is higher than that of general structural steel, so it has excellent wear resistance and is suitable for occasions with high wear resistance requirements.

Ease of processing: Although CR800/1180MTR is a high-strength steel, it still has good plasticity and processability, and is relatively easy to operate during processing.

Strong corrosion resistance: Medium manganese steel has good corrosion resistance in natural environments such as the atmosphere and fresh water, and can withstand the corrosion of many chemical substances.

In what fields is CR800/1180MTR widely used?

CR800/1180MTR, a high-strength, high-hardness medium manganese steel, is widely used in the following fields:

Automobile industry: CR800/1180MTR is widely used in automotive structural parts, such as body frame, body panels, chassis, etc. In these applications, CR800/1180MTR can provide better crash safety performance and excellent wear resistance.

Construction machinery field: Construction machinery usually needs to use high-strength and lightweight materials to increase its load-bearing capacity and reduce its own weight. Therefore, CR800/1180MTR is also widely used in the field of construction machinery, such as excavator buckets, crawler chains, etc.

Aerospace field: Due to its high strength and toughness, CR800/1180MTR is also widely used in aerospace field. For example, it can be used to make major structural components of aircraft, such as wings, fuselage, etc.

Energy field: In the energy field, CR800/1180MTR can be used to manufacture oil and gas pipelines, generator casings and other equipment to improve their load-bearing capacity and durability.

Power equipment field: CR800/1180MTR can also be used to manufacture insulating covers, brackets and other components of large power equipment such as transformers and motors to improve its strength and durability.

What is the heat treatment of CR800/1180MTR medium manganese steel?

CR800/1180MTR medium manganese steel generally needs heat treatment processes such as quenching and tempering to improve its strength and hardness.

Specifically, its heat treatment process generally includes the following steps:

Preheating: Heat the CR800/1180MTR medium manganese steel to an appropriate temperature to reduce stress and deformation during cooling. The preheating temperature is usually around 500°C.

Quenching: The heated medium manganese steel is rapidly cooled to make its structure undergo phase transformation to achieve higher hardness and strength. The quenching medium in this step can be water, oil or gas.

Tempering: After quenching, in order to relieve stress and improve toughness, it is necessary to temper the medium manganese steel at a suitable temperature. The tempering temperature is usually between 300~600°C, and the time is also different, usually more than 1 hour. The tempered CR800/1180MTR medium manganese steel has certain toughness and impact resistance, while maintaining high hardness and strength.

Cooling: The tempered medium manganese steel needs to be properly cooled to ensure its mechanical properties and durability.

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We are very proud to introduce to you our company’s new product – CR800/1180MTR medium manganese steel. This steel has excellent strength and wear resistance, making it especially suitable for a variety of harsh industrial applications. We produce this steel using state-of-the-art technology and workmanship to ensure its high quality and reliability. If you are looking for a high quality medium manganese steel, then CR800/1180MTR medium manganese steel is your ideal choice. We sincerely recommend this product and believe it will bring great value and benefits to your business.