45N Stainless Steel Pipe Composition, Properties, Applications

45N stainless steel pipe is a common stainless steel pipe material, the following is a detailed introduction about its composition, properties, applications and production process characteristics.

First, the composition:

The main chemical composition of 45N stainless steel pipe includes: carbon (C), silicon (Si), manganese (Mn), phosphorus (P), sulfur (S), chromium (Cr), nickel (Ni) and molybdenum (Mo). The specific composition content is as follows:

- Carbon (C): ≤ 0.08%

- Silicon (Si): ≤ 0.75%

- Manganese (Mn): ≤ 1.00%

- Phosphorus (P): ≤ 0.040%

- Sulfur (S): ≤ 0.030%

- Chromium (Cr): 16.00-18.00%

- Nickel (Ni): 10.00-14.00%

- Molybdenum (Mo): 2.00-3.00%

II. Properties:

1. Density: The density of 45N stainless steel pipe is about 7.8 g/cm³.

2. Hardness: The hardness of 45N stainless steel pipe is about HB ≤ 187.

3. Tensile Strength: The tensile strength of 45N stainless steel pipe ranges from ≥ 520 MPa.

4. Yield strength: The yield strength of 45N stainless steel pipe ranges from ≥ 205 MPa. 5.

5. elongation: the elongation range of 45N stainless steel pipe is ≥40%.

III. Applications:

Due to its good corrosion resistance and mechanical properties, 45N stainless steel pipe is widely used in many fields, including but not limited to the following:

1. the manufacture of pressure vessels and boilers.

2. piping systems in petroleum, chemical and pharmaceutical industries.

3. Food processing equipment and utensils.

4. Medical devices.

5. firearms manufacturing.

6. ship construction.

7. Building structure.

Fourth, the production process characteristics:

The production process characteristics of 45N stainless steel pipe mainly include the following points:

1. Refining process: through fine regulation of raw materials and smelting process, to ensure the precise control of stainless steel pipe composition.

2. heat treatment: adjust the structure and properties of stainless steel pipe by controlling the heating temperature and cooling speed.

3. steel wire drawing: through steel wire drawing process, improve the mechanical properties of the material, improve strength and toughness.

4. Cold rolling: Adopt cold rolling process to adjust the dimensional accuracy and surface quality of stainless steel pipe.

5. passivation treatment: through the treatment of passivation agent, a dense passivation film is formed to improve the corrosion resistance of stainless steel pipe.

The above is a detailed introduction about the composition, performance, application and production process characteristics of 45N stainless steel pipe. Hope it will be helpful to you!