EN10305-2 Standard ST52 Precision Steel Tube with Cold Drawn Technique for Mechanical Welded Steel Tube
Precision steel tubes, specifically mechanical welded steel tubes, are engineered for high strength and durability. They feature seamless construction that ensures uniformity and dimensional accuracy, essential for various applications. These tubes exhibit excellent resistance to corrosion and wear, making them suitable for demanding environments. Their precision manufacturing process allows for lightweight yet robust designs, ideal for automotive, construction, and industrial uses. With superior weld integrity and consistent performance, these tubes provide reliability and efficiency in mechanical systems, enhancing overall operational effectiveness.
| Material | ST37.4, ST52.4, E235, E355 |
|---|---|
| Standard | DIN2391, EN10305 |
| Delivery Condition | +C, +LC, +SR, +N, +A |
| Size Range | Outer Diameter: φ6-φ120 mm Wall Thickness: 0.5-15 mm |
| Application | High Precision Steel Tube is widely used in automotive parts, hydraulic systems, and high-precision machining |
Cold rolling by Cold pilger machine and Cold rolling machine
- +C: No heat treatment after the final cold drawing process
- +LC: After the final heat treatment there is a suitable drawing pass
- +SR: After the final cold drawing process there is a stress relieve heat treatment in a controlled atmosphere
- +A: After the final cold drawing process the tubes are annealed in a controlled atmosphere
- +N: After the final cold drawing operation the tubes are normalized in a controlled atmosphere
The cold drawn welded tube is produced by drawing ERW (electric resistance welded tube). During this process the sizing (wall thickness, inside and outside diameter), as well as weld integrity and surface finish is closely controlled to produce tube of the required size and mechanical property characteristics.
- Better shape and dimensional accuracy
- Improved quality surface finish
- Tight eccentricity and wall thickness tolerances
- Enhanced tube safety
- Good toughness at low temperatures
- 90% of cylinders in the USA market are produced with welded tubes
- Cost-effective fixed lengths
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