Longitudinal arc welded pipe: a cost-effective choice

specification

Product Display

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Production process

Strip preparation: First, select steel strips or steel plates of appropriate specifications. The material should be determined according to the final use of the steel pipe. For example, ordinary carbon steel may be used for ordinary building structures, and alloy steel or stainless steel may be used for specific industrial fields. The selected strips should be cleaned on the surface to remove impurities such as oil and rust to ensure the welding quality.
Rolling: The treated strips are rolled into the shape of tube billets through equipment such as plate rolling machines, so that the two sides of the strips are butted to form a straight seam. In this process, attention should be paid to the control of the dimensional accuracy of the tube billet, such as roundness and diameter, to ensure that the subsequent welding process can proceed smoothly.
Welding: Use arc welding equipment to weld the straight seam of the tube billet. When welding, the welding parameters such as the model of the electrode (or welding wire), welding current, voltage, and welding speed should be reasonably selected according to factors such as the material and wall thickness of the steel pipe. Common arc welding methods include manual arc welding and submerged arc welding. Manual arc welding is highly flexible and suitable for welding some small batches and irregular welds; submerged arc welding has the characteristics of high welding quality and high production efficiency, and is suitable for welding large batches and regular welds.
Weld processing: After welding is completed, the weld must be processed. This may include removing impurities such as welding slag and spatter on the surface of the weld, and performing non-destructive testing (such as ultrasonic testing, X-ray testing, etc.) on the weld to check whether there are defects inside the weld, such as pores, cracks, etc. If defects are found, they must be repaired in time.
Subsequent processing: Depending on the specific use of the steel pipe, some subsequent processing may be required, such as cutting into a suitable length, surface treatment (such as galvanizing, painting, etc.) to improve the corrosion resistance or aesthetics of the steel pipe, etc.

Why choose us, our advantages

1.Procurement of high-quality raw materials: Our company always insists on purchasing high-quality raw materials from reliable suppliers and strictly controls the quality of raw materials. We have established long-term and stable cooperative relationships with many well-known suppliers of raw materials such as iron ore and coke, ensuring that each batch of raw materials used meets or even exceeds industry standards, laying a solid foundation for the production of high-quality steel.
2.Advanced production technology and equipment: We have a set of advanced production processes and modern production equipment, which enables us to accurately control key indicators such as the chemical composition, mechanical properties and dimensional accuracy of steel. For example, we use advanced steelmaking technology, such as converter steelmaking combined with refining technology, to effectively remove impurities and improve the purity of steel; equipped with high-precision rolling equipment to ensure that the thickness of steel is uniform and the shape is regular, meeting the strict requirements of different customers for steel quality.
3.Strict quality inspection system: We have established a complete and strict quality inspection system, and every link is carefully inspected from the entry of raw materials to the delivery of finished products. We have a professional quality inspection laboratory equipped with advanced testing instruments, such as spectrometers, universal testing machines, ultrasonic flaw detectors, etc., which can comprehensively test the chemical composition, tensile strength, yield strength, elongation, weld quality (if any) and other indicators of steel. Only steel products that have undergone strict testing and are all qualified will flow into the market, ensuring that every piece of steel that customers get is a fine product.
4.Multi-material coverage: Our product line is rich and diverse, covering a variety of common steel materials, including carbon steel, alloy steel, stainless steel, etc. Whether it is ordinary carbon steel needed for building structures, high-strength alloy steel used in machinery manufacturing, automotive industry and other fields, or stainless steel with extremely high corrosion resistance requirements, customers can find suitable products in our company to meet the diverse needs of different industries and different application scenarios.
5.Outstanding cost-effectiveness: Although we have made great efforts in cost control, we have never sacrificed product quality in exchange for low prices. On the contrary, we provide customers with cost-effective steel products based on high-quality product quality and reasonable pricing strategies. When customers buy our steel, they can enjoy high-quality product guarantees and relatively affordable prices, which truly achieves value for money.
6.Professional sales team: We have a professional sales team that not only knows the various performance and characteristics of steel products, but also has rich industry experience and good communication skills. We can accurately understand customer needs, provide customers with professional product consultation and purchase suggestions, and help customers quickly and accurately select the most suitable steel products for themselves.
7.Perfect after-sales service: We are well aware of the importance of after-sales service to customer satisfaction, so we have established a perfect after-sales service system. We provide product quality assurance and return and exchange services. During the quality assurance period, if there are quality problems with the product, we will promptly handle the return and exchange procedures for customers; provide technical support and consulting services, and provide timely and accurate answers to various problems encountered by customers in the process of using steel, such as application guidance, processing technology suggestions, etc.; at the same time, we provide good logistics and delivery services, track logistics transportation and assist customers in delivery acceptance; we also actively collect customer feedback and handle it in a timely manner, and continuously improve service quality.