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The difference between manganese steel and stainless steel:

  1. Manganese steel is characterized by high strength and excellent wear resistance, while stainless steel is known for its corrosion resistance and good oxidation resistance.

 

2. The main corrosion-resistant element in stainless steel is chromium, along with nickel, molybdenum, copper, titanium, niobium, and others. The addition of manganese in stainless steel primarily enhances its strength and wear resistance.

 

3. Specific introduction:

(1) Manganese steel is a high-strength, wear-resistant steel primarily used in harsh operating conditions that involve impact, compression, and material abrasion. Its failure modes are mainly wear consumption, with some instances of fracture and deformation. Wear can be categorized into three types: frictional wear, which occurs when metal components surface contact and interact with each other during motion; abrasive wear, which results from the impact of other metallic or non-metallic materials on the metal surface; and erosive wear, caused by the contact of flowing gas or liquid with the metal surface. The wear resistance of wear-resistant steel depends on the material itself, while its performance as an anti-wear steel varies under different operating conditions. Both the material itself and the operating conditions determine its wear resistance.

(2) Stainless steel is the abbreviation for stainless acid-resistant steel. Steel grades that are resistant to weak corrosive media such as air, steam, water, or possess stainless properties are referred to as stainless steel. Steel grades that are resistant to corrosion by chemical media (acids, alkalis, salts, etc.) are referred to as acid-resistant steel. The difference in chemical composition between the two results in different corrosion resistance properties. Ordinary stainless steel is generally not resistant to corrosion by chemical media, while acid-resistant steel generally possesses stainless properties.

 

Expansion of application introduction for manganese steel and stainless steel:

Manganese Steel: Manganese steel is extensively used in the manufacturing of components subjected to frequent wear, such as steel grinding balls, roller bearings, bulldozer and excavator buckets, as well as railway tracks and bridges. The roof of the audience hall in a newly constructed cultural plaza in Shanghai features an innovative lattice structure constructed by welding thousands of manganese steel tubes. This fan-shaped hall spans 76 meters in length and 138 meters in width, without any supporting columns in the center. The use of manganese steel as the structural material provides exceptional strength while minimizing the quantity of steel required. On average, only 45 kilograms of manganese steel is used per square meter of the roof. The Shanghai Gymnasium, completed in 1973 and capable of accommodating 18,000 people, also utilizes manganese steel as the structural material for the lattice roof.

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