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Welded Carbon Steel Pipes
Welded Carbon Steel Pipes
Welded Carbon Steel Pipe is made by rolling carbon steel plates or coils into a cylindrical shape and then welding the seam longitudinally or spirally. Compared to seamless pipes, welded pipes provide a cost-effective solution for many industrial uses where high-pressure resistance is not the main need.
Carbon welded pipes come in different welding types, such as Electric Resistance Welded (ERW), Longitudinal Submerged Arc Welded (LSAW), and Spiral Submerged Arc Welded (SSAW), each suited for specific pressure ratings and installation needs. Welded carbon steel pipes provide flexibility in size and thickness, quick production, and are often preferred for large-diameter pipelines, construction scaffolding, and low-to-medium pressure applications.
Products
Welded Carbon Steel Pipes Specification
| Specification | Details |
|---|---|
| Type & Welding Method | ERW (Electric Resistance Welded), HFW (High Frequency Welded), LSAW (Longitudinal Submerged Arc Welded), SSAW (Spiral Submerged Arc Welded) |
| Steel Grades | ASTM A53 Gr A/B, ASTM A252, API 5L Gr B/X42/X52/X60/X70, EN 10217, EN 10219, GB/T 9711, Q195, Q235, Q345 |
| Standards | ASTM A53/A252, API 5L, EN 10217/10219, ISO 3183, GB/T 9711 |
| OD Range | 21.3 mm – 3048 mm (1/2" – 120") |
| Wall Thickness | 1.8 mm – 50 mm (SCH10 to SCH160 or custom) |
| Length | 5.8 m, 6 m, 11.8 m, 12 m or customized (random/double random) |
| Surface Finish | Black painting, anti-corrosion oil, galvanized, 3LPE/3LPP/FBE coating |
| End Type | Plain End, Beveled End, Threaded End with Couplings |
Quality Certification
Welded Carbon Steel Pipe used
Municipal Water Supply and Drainage Systems: Commonly used in urban water supply networks, drainage, and wastewater treatment pipelines.
Low to Medium Pressure Gas Pipelines: Suitable for natural gas, liquefied petroleum gas (LPG), and other gas pipelines.
Structural Steel Pipes: Used in building frames, bridge supports, scaffolding, and mechanical supports.
Machinery Manufacturing and Equipment Piping: Used in hydraulic pipelines, framework structures, and process piping of machinery and equipment.
Heating, Ventilation, and Air Conditioning (HVAC) Systems: Used for air conditioning and ventilation piping systems.
Oil and Chemical Non-High-Pressure Pipelines: Used for transporting oil and chemicals in non-high-pressure environments.
More Details About Zhaojian Steel Products
Key Features
High-Quality Raw Materials
Selected premium steel for wear and pressure resistance, minimizing leakage risks.
Strict Dimension Control
Precision processing ensures uniform diameter and wall thickness.
Fine Processing
Clean cuts with no burrs for easier welding and installation.
Welded Carbon Steel Pipe Manufacturing Process
- Welding: Seam welded using ERW or SAW methods; weld quality is critical for performance.
- Heat Treatment: Pipes may be normalized, annealed, or quenched & tempered to improve strength and reduce stress.
- Shaping & Correction: Straightening ensures roundness and straightness meet dimensional standards.
- Surface Treatment: Includes pickling, sandblasting, oiling, or galvanizing to enhance corrosion resistance.
- Cutting: Pipes are cut to required lengths per order specifications.
- Inspection & Packing: Includes dimensional checks, mechanical and chemical testing, followed by anti-rust oiling and secure packing.
FAQ
Welded pipes feature a visible weld seam and are suitable for low to medium pressure uses because they are less expensive and come in a wider variety of sizes. Seamless pipes do not have welds and provide greater strength for more demanding environments.
Options include black oil coating, pickling, galvanizing, painting, or custom finishes.
Yes, we offer full inspection reports and mill test certificates upon request.
