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Seamless steel pipe knowledge: Steel pipe network introduced 27simn seamless steel pipe
27SiMn seamless steel tubes, also known as 27SiMn seamless steel pipes, are a type of high-quality alloy steel used in the production of seamless steel tubes. This material has a carbon content ranging from 0.24% to 0.32%. The name "SiMn" comes from the presence of silicon (Si) and manganese (Mn), two key alloying elements in the steel. Along with carbon (C), phosphorus (P), and sulfur (S), the SiMn content typically falls between 1.10% and 1.40%, contributing to its enhanced mechanical properties and strength.
These seamless steel pipes are widely used in various industries, including power plants, boiler systems, chemical processing, automotive components, and shipbuilding. Their durability and resistance to high temperatures make them ideal for demanding applications where structural integrity is crucial.
The theoretical weight of a 27SiMn seamless steel tube can be calculated using the formula:
**W = 0.02466 × S × (D - S)**
Where:
- **W** is the weight per meter (in kg),
- **D** is the outer diameter (in mm),
- **S** is the wall thickness (in mm).
For example, if a seamless steel pipe has an outer diameter of 60 mm and a wall thickness of 4 mm, the weight per meter would be:
**Weight per m = 0.02466 × 4 × (60 - 4) = 5.52 kg**
In terms of mechanical properties, 27SiMn seamless steel pipes exhibit excellent performance. They have a tensile strength of at least 980 MPa, a yield strength of no less than 835 MPa, and an elongation of at least 12%. Additionally, they show a section shrinkage of 40% or more, indicating good ductility. The impact absorption work (shock value) is also impressive, reaching a minimum of 39 J. These properties make 27SiMn a preferred choice for applications requiring both strength and toughness.