Welded pipes are tubular products manufactured by rolling metal sheets or strips and then welding the seam to form a pipe. These pipes are widely used in various industries due to their cost-effectiveness and versatility. They come in different types, including Electric Resistance Welded (ERW), High-Frequency Induction Welded (HFIW), and Longitudinal Submerged Arc Welded (LSAW) pipes, each offering specific advantages depending on the application. Welded pipes are available in various materials such as carbon steel, stainless steel, alloy steel, and specialty metals, catering to a broad range of pressure and temperature requirements.
They are commonly used for transporting fluids and gases, structural applications, mechanical uses, and in industries such as oil and gas, construction, automotive, and water treatment. Welded pipes provide consistent quality, uniform dimensions, and can be produced in large volumes, making them an economical choice for many engineering and industrial projects.
| Specification | Description |
| Manufacturing Process | ERW (Electric Resistance Welded), HFIW (High-Frequency Induction Welded), LSAW (Longitudinal Submerged Arc Welded) |
| Size Range | Outer Diameter: 10 mm to 2500 mm (varies by process) |
| Wall Thickness | 1 mm to 50 mm (depending on size and manufacturing process) |
| Length | Standard lengths: 6 m, 12 m, or custom cut to customer specifications |
| Surface Finish | Mill finish, galvanized, painted, or polished as per requirements |
| Applicable Standards | ASTM A53, ASTM A106, API 5L, EN 10217, EN 10210, ISO 3183 |
| Applications | Oil & Gas pipelines, Water Transmission, Structural Applications, Mechanical Systems, Automotive, Hydraulic Systems |
| Material | Grades |
| Stainless Steel | 304, 304L, 304H, 310S, 310H, 316, 316L, 316H, 316Ti, 317, 317L, 321, 321H, 347, 347H, 904L |
| Carbon Steel | ASTM A53 GR A, ASTM A53 GR B, ASTM A53 GR C, ASTM A333 GR 1 & 6, ASTM A106 GR B, ASTM A106 GR C, API 5L GR B, API 5L X42 / X46 / X52 / X56 / X60 / X65 / X70 |
| Alloy Steel | P1, P5, P9, P11, P12, P22, P91, P92 |
| Duplex Steel | Duplex 2205, Duplex 2507 |
| Super Duplex Steel | Super Duplex 2507, Super Duplex 4501 |
| Monel | Monel 400, Monel K500 |
| Inconel | Inconel 600, Inconel 625, Inconel 718, Inconel X-750 |
| Hastelloy | Hastelloy C22, Hastelloy C276, Hastelloy B2 |
| Alloy 20 | Alloy 20 |
| Titanium | Titanium Grade 2, Grade 5, Grade 7, Grade 12 |
| Cupro Nickel | Cupro Nickel 70/30, Cupro Nickel 90/10 |
