Description
DIN 2391 ST52 Seamless Pipe
Overview
DIN 2391 ST52 Seamless Pipes are high-quality steel tubes manufactured under the DIN 2391 specification, specifically designed for precision applications. The ST52 grade is known for its superior mechanical properties, making it ideal for various industrial applications. These pipes are widely used in construction, manufacturing, and engineering due to their strength, durability, and resistance to wear.
Table of Contents
- Introduction
- Specifications and Dimensions
- Mechanical Properties
- Material Composition
- Manufacturing Process
- Applications
- Grades and Equivalents
- Conclusion
1. Introduction
DIN 2391 ST52 pipes are seamless, precision-engineered tubes designed for high-performance applications. They are manufactured from carbon steel and are suitable for high-pressure and high-temperature environments.
2. Specifications and Dimensions
- Outer Diameter: Ranges from 4mm to 200mm.
- Wall Thickness: Available from 0.5mm to 15mm.
- Length Options: Standard lengths range from 6000mm to 12000mm, with custom lengths available upon request.
3. Mechanical Properties
| Property | Value |
|---|---|
| Minimum Yield Strength | 350 MPa |
| Minimum Tensile Strength | 500 MPa |
| Elongation | ≥ 22% |
4. Material Composition
The typical composition of DIN 2391 ST52 includes:
- Carbon (C): 0.22% max
- Silicon (Si): 0.55% max
- Manganese (Mn): 1.60% max
- Phosphorus (P): 0.035% max
- Sulfur (S): 0.025% max
5. Manufacturing Process
DIN 2391 ST52 pipes are manufactured using the seamless method, which involves hot working the steel at high temperatures, followed by cold finishing. This process ensures the pipes achieve tight tolerances and a smooth surface finish, which is critical for their performance in high-stress applications.
6. Applications
DIN 2391 ST52 Seamless Pipes are used in various industries due to their excellent mechanical properties. Common applications include:
- Construction: Used in structural applications, scaffolding, and framework.
- Automotive: Employed in manufacturing components that require high strength and durability.
- Hydraulic Systems: Ideal for hydraulic cylinders and pipes that operate under high pressure.
- Machinery Manufacturing: Utilized in producing various machine components that demand precision and reliability.
7. Grades and Equivalents
DIN 2391 ST52 is equivalent to several international standards, making it a versatile choice for global applications. Some equivalents include:
- EN 10305-1 E355: European standard for seamless tubes.
- ASTM A106 Gr B: American standard for seamless carbon steel pipes.
- SAE 1026: Commonly used in the USA for similar applications.
