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EN 10217 LSAW STEEL PIPE
- Commodity name: EN 10217 LSAW STEEL PIPE
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Details
- 产品描述
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EN 10217 LSAW STEEL PIPE
Standard: EN 10217
Steel Grade: P195GH, P235GH, P265GH
Outside Diameter: 406.4mm - 1422.4mm(16inch-56inch)
Wall Thicknss: 10 - 50mmLength: 5.8m / 6m / 12m, also depend on requirements
Pipe End: flat end/ chamfer end/ groove/ thread
Coating: Black / varnish / 3PE / galvanized / fused epoxy coating
Chemical composition
Chemical composition(cast analysis)% Steel Grade C Si
max.Mn P
max.S
max.P195GH ≤0.13 0.35 ≤0.70 0.025 0.020 P235GH ≤0.16 0.35 ≤1.20 0.025 0.020 P265GH ≤0.20 0.40 ≤1.40 0.025 0.020 Mechanical properties
Mechanical properties for wall thickness T≤16 Steel Grade Tensile properties at room temperature Upper yield strength MPa Tensile strength Mpa Elongation % longitudinal transverse P195GH 195 320-440 27 25 P235GH 235 360-500 25 23 P265GH 265 410-570 23 21 Detailed Information
Features:- Large diameter and thick wall: EN 10217 LSAW steel pipes are capable of producing large diameter and thick wall steel pipes, suitable for long distance pipes requiring high strength and large size.
- High pressure and low temperature resistance: These steel pipes have good high pressure and low temperature resistance, suitable for use in a variety of environmental conditions.
- Dimensional accuracy and uniformity: LSAW steel pipes have high dimensional accuracy, uniform wall thickness and good surface quality, helping to improve the overall performance and reliability of the pipe.
- Welding quality: The use of pre-welding and final welding process, stable welding process, high welding quality, easy to carry out non-destructive testing in the production process and on-site non-destructive testing during use.
Production procedure
1. Prepare raw materials
- Steel plate inspection: Full plate ultrasonic inspection is carried out on the steel plate on the production line to ensure that the raw material is free of defects.
- Steel plate edge milling: Both sides of the steel plate are milling with an edge milling machine to meet the width and edge shape requirements.
2. Forming process
- Prebending: The edge of the steel plate is prebent using a prebending machine to meet the curvature required for forming.
- Forming: Using JCOE or UOE forming technology:
- JCOE forming: After many stamping, the steel plate first forms a "J" shape, then a "C" shape, and finally an open "O" shaped tube blank.
- UOE forming: The steel plate is prebent and then deformed into a round tube blank by U and O forming machines.
3. Welding process
- Pre-welding: Spot welding is performed on the tube blank after forming to maintain its shape.
- Internal welding: multi-wire submerged arc welding technology is used to weld the inside of the steel pipe.
- External welding: multi-wire submerged arc welding technology is also used to weld the outside of the steel pipe.
4. Quality inspection
- Ultrasonic inspection: 100% ultrasonic inspection of the welded steel pipe to ensure that the weld is free of defects.
- X-ray inspection: X-ray industrial television inspection system is used for further inspection of the weld.
5. Post-processing
- Expanding: Through the expanding treatment to improve the dimensional accuracy of the steel pipe and improve the stress distribution.
- End processing: The two ends of the steel pipe are processed to achieve the required specifications.
6. Final inspection and coating
- Water pressure test: water pressure test is carried out on the finished steel pipe to test its ability to withstand pressure.
- Final inspection: Conduct final quality inspection to ensure that the product meets the standard.
- Coating treatment: The steel pipe is treated with anti-corrosion coating as required.
Core Advantage
Brisk Steel Group is rooted in a culture of "technology as the backbone, quality as the soul, and customers as the heart." Through relentless innovation, global expansion, and a commitment to responsibility, we strive to become a trusted global partner and a technological benchmark in the steel manufacturing industry.
Craftsmanship with Precision
We adhere to a rigorous quality control system that spans the entire production process—from raw material procurement and manufacturing to product delivery—ensuring the highest standards of excellence.
Innovation-Driven Technological Leadership
We prioritize R&D and technological advancement, integrating cutting-edge production lines (e.g., JCOE large-diameter LSAW pipe production) and expert teams from countries like Germany and the Netherlands to maintain our position at the forefront of the industry.
Globalization and Open Collaboration
Actively engaging in the global supply chain, we have obtained international certifications such as CE marking, enabling our products and services to reach worldwide markets.
Professional Team and Talent Empowerment
We value the recruitment and development of technical talent, building an international and professional team that drives continuous growth.
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