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Carbon Steel Pipe Specifications
- 1. Material: Carbon steel (typically containing iron and carbon as the primary elements)
- 2. Size Range: Various sizes available, commonly from 1/8″ to 72″ in diameter
- 3. Wall Thickness: Typically available in standard schedules such as Sch 20, Sch 40, Sch 80, Sch 160, etc.
- 4. Length: Generally 6 meters or 12 meters in standard lengths, but custom lengths can be produced.
- 5. End Connections: Plain end, beveled end, threaded end, or coupling for joining pipes.
- 6. Surface Coating: Depending on the application, carbon steel pipes may have a black or galvanized finish.
- 7. Standards: Manufactured in accordance with various international standards such as ASTM, ASME, API, DIN, JIS, etc.
- 8. Grade: S235JR/J0/J2, S275JR/J0/J2/K2, S355JR/J0/J2, SPHC/SPHD/SPHE/1010/1045/1055/1060/1075/1080/1084/1085/1090, Q195, Q215, Q235, Q345, ST37, A36,45#
- 9. Type: Carbon Steel Welded Ttube, Carbon Steel Seamless Pipe
At Starway Metal, we strive to bring the best products and value-added services that exceed expectations to our customers. We have received satisfactory evaluations from customers in the United Kingdom, Germany, Australia, the United Arab Emirates, Canada, Mexico, Brazil, etc. Professional dedication and service have made us a leader in the carbon steel trading industry. We offer a variety of carbon steel tube options to meet your different needs for all types of applications.
Classification of Carbon Steel Pipe
Carbon steel pipes can be classified based on various factors, including their composition, manufacturing method, and intended use. Here are the primary classifications of carbon steel pipes:
1. Based on Carbon Content:
- – Low Carbon Steel Pipe: Contains a low percentage of carbon (typically up to 0.30%) and exhibits good formability and weldability. It is commonly used for low-pressure applications, such as water supply and general plumbing.
- – Medium Carbon Steel Pipe: Contains a higher carbon content (ranging from 0.30% to 0.60%). It offers increased strength and hardness, making it suitable for machinery and structural applications.
– High Carbon Steel Pipe: Contains a higher carbon content (above 0.60%) and is known for its exceptional hardness and wear resistance. It is used in applications such as cutting tools and high-strength wire.
2. Based on Manufacturing Method:
- – Seamless Carbon Steel Pipe: Manufactured without any welding seam or joint, resulting in a smooth and uniform surface. Seamless pipes are generally preferred for high-pressure and critical applications due to their uniform strength.
- – Welded Carbon Steel Pipe: Produced by welding together two ends of a flat steel strip or coil. Welded pipes are commonly used for less critical applications and are available in various forms, including ERW (Electric Resistance Welding) and SAW (Submerged Arc Welding) pipes.
3. Based on Application:
- – Structural Carbon Steel Pipe: Used in structural and construction applications to support loads and transmit fluids or gases. Commonly used in buildings, bridges, and infrastructure projects.
- – Oil and Gas Carbon Steel Pipe: Designed to transport oil, gas, or other fluids in the petroleum industry. These pipes are subjected to high pressures and may require additional coatings to resist corrosion.
- – Water Supply Carbon Steel Pipe: Specifically designed for conveying potable water and other liquids for domestic, commercial, and industrial purposes.
- – Industrial Carbon Steel Pipe: Used in various industrial applications, such as manufacturing, processing, and chemical handling.
4. Based on Surface Coating:
- – Black Carbon Steel Pipe: Uncoated carbon steel pipe with a black oxide scale on its surface, commonly used for non-corrosive applications or where protective coatings are applied later.
- – Galvanized Carbon Steel Pipe: Coated with a layer of zinc to enhance corrosion resistance, making it suitable for outdoor applications and environments prone to moisture.
It’s important to select the appropriate type of carbon steel pipe based on the specific requirements of the project or application to ensure optimal performance and longevity.
Carbon Steel Pipe Dimensions
Carbon steel pipes come in various dimensions, which include the following parameters:
1. Nominal Pipe Size (NPS): This represents the standard size designation of the pipe and is not the actual measurement. It is a reference to the approximate inside diameter of the pipe in inches or millimeters. Common NPS sizes range from 1/8″ to 72″.
2. Outside Diameter (OD): The actual outside diameter of the pipe, measured in inches or millimeters. It is important for pipe fittings and connections.
3. Wall Thickness: This refers to the thickness of the pipe wall, measured in inches or millimeters. It is typically specified by a schedule number (Sch), such as Sch 20, Sch 40, Sch 80, etc. Different schedules correspond to different wall thicknesses.
4. Pipe Length: Carbon steel pipes are usually available in standard lengths of 6 meters (20 feet) or 12 meters (40 feet). However, custom lengths can also be produced to meet specific project requirements.
5. Pipe End Types: Carbon steel pipes can have different end types to facilitate connections, such as plain ends, beveled ends, threaded ends, or coupled ends.
6. Weight per Unit Length: This indicates the weight of the pipe per unit length (e.g., pounds per foot or kilograms per meter). The weight varies depending on the pipe’s dimensions and wall thickness.
7. Surface Finish: Carbon steel pipes can have various surface finishes, including black (uncoated) or galvanized (coated with a layer of zinc for corrosion resistance).
It’s important to refer to the specific product specifications or industry standards (e.g., ASTM, ASME, API) for accurate dimensions of carbon steel pipes, as they can vary based on the manufacturer and application requirements. Properly understanding and selecting the right dimensions are crucial to ensuring the pipes fit seamlessly into the intended system and can withstand the intended operating conditions.
