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Seamless steel pipe knowledge: Steel pipe network introduced 27simn seamless steel pipe
27SiMn seamless steel tubes are a type of high-quality seamless steel pipe commonly used in various industrial applications. The material contains approximately 0.24% to 0.32% carbon, with silicon and manganese being the main alloying elements. The term "27SiMn" refers to the composition, where "27" indicates the carbon content (in hundredths of a percent), while "SiMn" stands for silicon and manganese. Typically, the silicon and manganese content ranges between 1.10% and 1.40%. These tubes are known for their excellent strength, toughness, and resistance to wear, making them ideal for use in power plants, boiler systems, chemical industries, automotive components, and shipbuilding.
The theoretical weight of a 27SiMn seamless steel tube per meter can be calculated using the formula:
**W = 0.02466 × S × (D - S)**
Where:
- **W** is the weight in kilograms per meter
- **D** is the outer diameter in millimeters
- **S** is the wall thickness in millimeters
For example, if a seamless steel tube has an outer diameter of 60 mm and a wall thickness of 4 mm, the weight per meter would be:
**Weight per meter = 0.02466 × 4 × (60 - 4) = 5.52 kg**
In terms of mechanical properties, 27SiMn seamless steel pipes exhibit strong performance characteristics:
- **Tensile strength (σb):** ≥980 MPa
- **Yield strength (σs):** ≥835 MPa
- **Elongation (δ5):** ≥12%
- **Section reduction (ψ):** ≥40%
- **Impact energy (Aku2):** ≥39 J
These properties make 27SiMn an ideal choice for high-stress and high-temperature environments. Whether it's for structural support, fluid transportation, or mechanical systems, this material provides reliable performance and durability. Its widespread use across multiple industries highlights its versatility and importance in modern engineering applications.