Products Description
Our Advantages
1. Corrosion Resistance
- We offer austenitic and duplex stainless steels with different corrosion resistance grades to suit various corrosive conditions. Solution annealing further enhances the overall corrosion resistance of the pipes.
- The Stainless Steel Coil Pipe undergoes intergranular corrosion testing, pitting and crevice corrosion testing, and salt spray testing to ensure they can withstand mild corrosion, oxidation, and high-temperature environments.
2. High Dimensional Accuracy
- The Stainless Steel Coil Pipe is manufactured according to EN 10216-5 standards, ensuring that the outer diameter and wall thickness of each pipe meet the specified tolerances. Outer diameter tolerance is ±0.01mm, and wall thickness tolerance is 0.1mm.
- After coiling, a professional straightening process ensures the pipe's straightness and ovality are suitable for compression fittings, automated assembly, etc.
3. Weldability and Machinability
- Our coil ends undergo precision cutting and deburring to reduce welding defects. The pipes are compatible with various welding methods, including argon arc welding, laser welding, and resistance welding.
- The materials we select are tested using a spectrometer to ensure they comply with EN 10216-5 standards. Stainless steel offers excellent cold-working properties and supports secondary processing such as flaring, necking, and turning.
4. High Pressure Resistance
- Our pipes are manufactured using a seamless forming process, eliminating weak points like weld seams and ensuring stable pressure resistance. Suitable for high-pressure pipelines in hydraulic systems and instrument lines.
- The pipes undergo rigorous eddy current testing and hydrostatic testing to ensure stable operation under high-pressure, vibration, and temperature conditions, eliminating safety hazards such as pipe bursts and leaks.
application areas
- Oil and Gas: Instrumentation lines, hydraulic control lines, chemical injection lines, etc.
- Power Generation: Boiler instrumentation lines, condensate and steam systems, etc.
- Marine and Offshore Engineering: Seawater treatment systems, desalination equipment, etc.
- Hydraulic and Pneumatic Systems: Automation systems, precision control pipelines, etc.
Chemical Composition
| Element | C (%) | Si (%) | Mn (%) | Cr (%) | Ni (%) | Mo (%) | N (%) |
|---|---|---|---|---|---|---|---|
| X2CrNi18-9 | ≤0.03 | ≤1.0 | ≤2.0 | 17.0–19.0 | 8.0–10.5 | - | - |
| X1CrNiMoN25-22-2 | ≤0.02 | ≤1.0 | ≤2.0 | 24.0–26.0 | 21.0–23.0 | 2.0–3.0 | 0.10–0.20 |
| X2CrNiN18-10 | ≤0.03 | ≤1.0 | ≤2.0 | 17.0–19.0 | 9.0–11.0 | - | 0.10–0.20 |
Mechanical Properties
| Property | Tensile Strength (MPa) | Yield Strength 0.2% (MPa) | Elongation (%) |
| X2CrNi18-9 | ≥ 500 | ≥ 190 | ≥ 40 |
| X1CrNiMoN25-22-2 | ≥ 650 | ≥ 300 | ≥ 35 |
| X2CrNiN18-10 | ≥ 550 | ≥ 240 | ≥ 40 |
Possible Alternative Grades
| Alternative Grades | Reasons |
| 1.4404 (316L) | It exhibits excellent resistance to pitting and crevice corrosion, making it widely used in marine and chemical industries. |
| 1.4462 (Duplex 2205) | It possesses high strength and excellent resistance to stress corrosion cracking, making it suitable for offshore, oil and gas, and high-pressure applications. |
| 1.4539 (904L) | With a high nickel-molybdenum content, it exhibits excellent resistance to strong acids and corrosive chemical environments. |
Products Show
Testing Equipment
Factory Equipment
Pickling equipment
Products Application
Products Package
FAQ
Q: What is the longest length of our coiled tubing?
A: Our coiled tubing can reach up to 1000m, helping to reduce installation time and leakage risks in offshore and instrumentation systems.
Q: How are the weldability and secondary processing performance of our coiled tubing?
A: Our tubing is compatible with TIG welding, laser welding, and other welding methods. The tubing undergoes solution annealing for thorough stress relief, allowing for direct bending, flaring, necking, turning, and chamfering, resulting in a high yield rate.
Q: Do you offer customization services?
A: Yes, we support non-standard customization services, allowing for customization of the outer diameter, wall thickness, and length of the tubing. We can also provide surface treatments such as BA (Battery Surface Finishing), polishing, and pickling according to application requirements.
Hot Tags: stainless steel coil pipe, China, suppliers, manufacturers, factory, customized, wholesale, price, OEM, mill, producer, for sale
