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ASTM API 5L X52/X56/60 LSAW Steel Pipe Submerged Arc Welded Steel Pipe
Description
The production process of double-sided submerged arc welded (SAW) steel pipes involves several key steps to ensure high-quality and efficient manufacturing:
Material Preparation: The process begins with the selection of high-quality steel coils or plates. These materials are inspected for defects and then sheared or leveled to the required dimensions.
Edge Milling: The edges of the steel plates or coils are milled to achieve a precise angle and smooth surface finish, ensuring proper alignment during welding.
Edge Preparing: Prior to welding, the edges of the steel plates or coils are beveled to the required angle and shape. This beveling process ensures proper penetration and fusion of the weld seam.
Alignment and Clamping: The prepared edges are then aligned and securely clamped together in preparation for welding. Precise alignment is essential to maintain uniformity and integrity of the weld.
Double-Sided Submerged Arc Welding (DSAW): The clamped steel plates or coils are subjected to double-sided submerged arc welding. In this process, welding arcs are simultaneously applied from both the inside and outside of the pipe, while a granular flux layer blankets the weld zone, protecting it from atmospheric contamination. This simultaneous welding ensures complete penetration and fusion of the weld seam.
Post-Weld Treatment: After welding, the welded pipe undergoes post-weld treatment, which may include trimming excess weld metal, removing slag and spatter, and inspecting the weld for defects.
Ultrasonic Testing: DSAW pipes typically undergo ultrasonic testing to ensure the integrity of the weld and detect any potential defects, such as cracks or lack of fusion.
Hydrostatic Testing: Following ultrasonic testing, SAW pipes are subjected to hydrostatic testing to verify their structural integrity and leak-tightness under pressure.
Final Inspection and Coating: The pipes undergo final inspection to ensure compliance with specifications and standards. They may then be coated with corrosion-resistant materials to enhance durability and longevity.
Packaging and Shipping: Finally, the finished DSAW pipes are packaged according to customer requirements and shipped to their destination for use in various applications, including oil and gas pipelines, structural supports, and industrial piping systems.
In conclusion, the production process of double-sided submerged arc welded steel pipes involves meticulous preparation, precise welding techniques, and stringent quality control measures to produce high-quality, reliable pipes for a wide range of industrial applications.
Industry-Specific Attributes
| Section Shape | Round |
| Surface Treatment | Hot Rolled |
| Tolerance | ±15%, ±5%, ±1%, ±20%, ±10% |
| Oiled or Non-oiled | Non-oiled |
| Invoicing | by theoretical weight |
Other Attributes
| Place of Origin | Shanxi, China |
| Alloy Or Not | Non-Alloy |
| Standard | API ASTM GB EN |
| Technique | SAW |
| Grade | GR.B X50 X60 X65 |
| Delivery Time | 31-45 days |
| Brand Name | XINBAODA |
| Application | Fluid Pipe, Boiler Pipe, Drill Pipe, Hydraulic Pipe, Gas Pipe, OIL PIPE, Chemical Fertilizer Pipe, Structure Pipe |
| Special Pipe | API Pipe, EMT Pipe, Thick Wall Pipe |
| Thickness | 3-50 |
| Length | 2M, 6m, 6.4M |
| Certificate | API, CE, ISO9001 |
| Processing Service | Welding, Punching, Cutting, Bending, Decoiling |
| Certificate | ISO9001 |
| Length | 5.8-12m |
| Technique | SAW |
| End protector | Plastic Pipe Cap |
| Surface | Black Painting |
| Material | ASTM A106/A53 Gr.B |
Packaging and Delivery
| Selling Units: | Single item |
| Single package size: | 1200X40.6X40.6 cm |
| Single gross weight: | kg |
Lead Time
| Quantity (tons) | 1 - 100 > 100 |
| Lead time (days) | 40 To be negotiated |
Product Display
