| Categories | Heat Exchanger Steel Tube |
|---|---|
| Place of Origin: | China |
| Certification: | SGS, BV, TUV, LR, ISO 9001, EN 10204 3.1, Mill Test Certificate |
| MOQ: | 1 TON |
| Price: | USD 600-1500/TON |
| Packaging Details: | Plastic plugs in both ends, hexagonal bundles of max. 2,000kg with several steel strips. Two tags on each bundle, wrapped in waterproof paper, PVC sleeve, and sackcloth with several steel strips, plastic caps. |
| Delivery Time: | 5-7 working days |
| Payment Terms: | T/T, L/C |
| Supply Ability: | 10000 tons/year |
| Name: | Cold Drawn Seamless Carbon Steel Tube |
| Outer Diameter: | 3.2-177.8 mm |
| Wall Thickness: | 2.2-25.4 mm |
| Standard: | ASTM A179, ASTM A192 |
| Certificate: | SGS, BV, TUV, LR, ISO 9001, EN 10204 3.1, Mill Test Certificate |
| Grade: | ASTM A179, ASTM A192 |
| Application: | Heat Exchanger, Condenser, Boiler, Piping System, Superheater, Oil & Gas Industry |
Cold Drawn Seamless Tube
1. Definition
A cold-drawn seamless tube is a cylindrical product that is manufactured by drawing a solid metal billet through a piercing rod to create a hollow tube without any seams or welds. This seamless construction sets them apart from other types of tubes, such as welded or hot-rolled tubes. The absence of seams enhances the tube’s structural integrity and resistance to various stresses, making it an ideal choice for critical applications.
2. Dimension
| Outer Diameter | 3.2-177.8 mm |
| Wall Thickness | 2.2-25.4 mm |
| Length | SRL, DRL or according to customer's requirement |
3. Production Process
Billet Preparation→Heating→Piercing→Elongation→Cold Drawing→Heat Treatment (Optional)→Surface Treatment
4. Application
| Oil and Gas Industry | Pipelines: Cold drawn seamless tubes are used for transporting oil and gas over long distances due to their high strength and resistance to pressure. |
| Downhole Tubing: These tubes are critical in drilling operations, providing structural integrity in high-pressure and high-temperature environments. | |
| Power Generation | Boilers: Used in the manufacturing of boiler tubes that operate under high pressure and temperature, ensuring efficient heat transfer. |
| Heat Exchangers: Employed in heat exchangers to transfer heat between fluids while maintaining structural integrity under thermal stress. | |
| Automotive Industry | Hydraulic Systems: Cold drawn seamless tubes are often used in hydraulic cylinders and components, providing reliable performance in demanding conditions. |
| Chassis Components: They are used in various structural components of vehicles due to their strength and lightweight properties. | |
| Aerospace Industry | Aircraft Components: Used in manufacturing critical components of aircraft, such as landing gear and fuel lines, where high strength-to-weight ratios and reliability are essential. |
| Engine Parts: Employed in the production of engine components that require precise dimensions and excellent mechanical properties. | |
| Construction and Structural Applications | Support Structures: Cold drawn seamless tubes are used in scaffolding, support columns, and other structural applications where strength and durability are paramount. |
| Frameworks: Utilized in various construction frameworks, providing robust support for buildings and infrastructure. | |
| Medical Equipment | Surgical Instruments: These tubes are used in high-precision medical instruments due to their sterile finish and mechanical reliability. |
| Implants and Prosthetics: Employed in manufacturing implants and prosthetic devices that require biocompatibility and strength. | |
| Chemical and Petrochemical Industries | Pressure Vessels: Used in the construction of pressure vessels that store and transport chemicals under high pressure. |
| Piping Systems: Employed in piping systems for transporting corrosive materials, often treated for enhanced corrosion resistance. |
5. Material, Standard, Grade and Corresponding Characteristics
| Material | Standard & Grade | Characteristics |
| Carbon Steel | ASTM A106: Grades A, B, and C | Good strength and weldability, commonly used in pressure applications. |
| ASTM A179: Specifically for low-temperature applications | ||
| ASTM A192: For high-temperature and pressure applications | ||
| Alloy Steel | ASTM A335: P1, P5, P9, P11, P22, P91 (for high-temperature service) | Enhanced strength and toughness, suitable for high-stress applications, often used in power generation and petrochemical industries. |
| ASTM A213: T5, T9, T11, T22, T91 (for various high-temperature applications) | ||
| Stainless Steel | ASTM A312: TP304, TP316, TP321 (for high-temperature and corrosive environments) | Excellent corrosion resistance, suitable for chemical processing, food, and pharmaceutical industries. |
| ASTM A213: T304, T316 (for high-temperature applications) | ||
| Nickel Alloys | ASTM B163: Nickel 200, Nickel 201 | High resistance to heat and corrosion, ideal for extreme environments in chemical processing and aerospace applications. |
| ASTM B167: Inconel 600, Inconel 625 | ||
| Copper and Copper Alloys | ASTM B280: Copper tubes for air conditioning and refrigeration | Good thermal and electrical conductivity, commonly used in plumbing and HVAC applications. |
| ASTM B75: Copper-nickel alloys (e.g., C70600) |
6. Packaging & Delivery
| Packaging Method | Description | Benefit |
| Wooden Crates | Tubes are often packed in sturdy wooden crates that provide robust protection against physical damage during transit. | This method is suitable for large quantities and heavy-duty applications, preventing bending or deformation. |
| Steel Bundles | Tubes may be bundled together using steel straps or wire, ensuring they remain securely in place during transportation. | This method allows for efficient handling and maximizes space during shipping. |
| Plastic Wrapping | Individual tubes or bundles are wrapped in plastic film to shield them from moisture, dust, and contaminants. | Protects the surface finish and prevents corrosion during storage and transport. |
| Cardboard Boxes | Smaller quantities of tubes can be packaged in cardboard boxes, providing lightweight protection. | Ideal for easy handling and shipping, especially for less fragile items. |
| End Caps | Protective end caps are placed on the ends of the tubes to prevent damage during handling and transport. | Maintains the integrity of the tube openings and prevents contamination. |
| Pallets | Tubes can be stacked on wooden or plastic pallets for easier handling with forklifts and for organized storage. | Facilitates efficient loading and unloading processes. |
| Transportation Method | Description | Benefit |
| Road Transport | Trucks are commonly used for transporting cold drawn seamless tubes over short to medium distances. | Flexible and efficient for local deliveries and can navigate various terrains. |
| Rail Transport | Trains are utilized for long-distance transportation, especially for bulk shipments. | Cost-effective for large volumes and reduces road congestion. |
| Sea Freight | Containers are used to ship tubes internationally by sea, often combining them with other goods. | Economical for large shipments over long distances, although transit times are longer. |
| Air Freight | For urgent shipments, air freight can be used to transport tubes quickly to their destination. | Fastest transportation method, though more expensive and typically used for smaller quantities. |
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