Steel Grades Structure Steel 45Mn

Steel Grades Structure Steel 45Mn

Structure steel 45Mn is a high-quality steel grade that is widely used in various industries. It is known for its excellent strength, durability, and resistance to wear and tear. This makes it an ideal choice for structural applications that require strong and sturdy materials.

One of the best things about 45Mn is that it is easy to work with. It can be easily machined, welded, and forged into a variety of shapes and sizes, making it a versatile choice for many different applications. Additionally, it has good heat resistance and can withstand high temperatures without losing its strength.

Another advantage of 45Mn is its excellent corrosion resistance. This means that it can withstand harsh environments and exposure to corrosive substances without deteriorating or degrading over time. This is essential for many applications, particularly in the construction and manufacturing industries.

GB/T 699-1999 is the standard for 45Mn structure steel. Its chemical composition (in weight %) is as follows:
- Carbon (C): 0.42-0.50%
- Silicon (Si): 0.17-0.37%
- Manganese (Mn): 0.50-0.80%
- Phosphorus (P): <0.035%
- Sulfur (S): <0.035%

The mechanical properties of 45Mn structure steel include:
- Tensile strength: 540-825 MPa
- Yield strength: 305-600 MPa
- Elongation: 16-22%
- Reduction of area: 40-55%
- Impact energy: 63-98 J

It is commonly used in machinery manufacturing for parts that require high strength, toughness, and wear resistance, such as gears, shafts, and axles.

GB 45Mn Knife Steel Factory show

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