Stainless Steel Coil Tube
Stainless steel coil tubes from Yunming Metal provide continuous length, excellent corrosion resistance, and high pressure performance. Ideal for oil & gas injection lines, marine systems, and heat exchangers, offering reliable quality and flexible customization.
Why Choose Yunming Metal?
- 10+ Years Manufacturing Experience
- Exported to 30+ Countries Worldwide
- Strict Quality Control (EN 10204 3.1 / 3.2 Available)
- Fast Production & Stable Delivery y
- Third-Party Inspection Supported (SGS, BV, TUV)
- Custom Sizes & Small Trial Orders Accepted
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tainless Steel Coil Tube for Oil Gas and Marine Use
1. Product Overview
Stainless steel coil tube is a continuous-length tubing solution designed for applications requiring long, seamless flow paths, high corrosion resistance, and reduced connection points. Supplied in coiled form, it minimizes welding joints and leakage risks, making it ideal for chemical injection lines, hydraulic systems, and heat exchanger coils.
Widely used in industries such as oil & gas, marine engineering, chemical processing, and power generation, coil tubing performs reliably in seawater environments, offshore platforms, and high-pressure fluid systems. Its flexibility and extended length allow efficient installation in confined spaces and complex layouts.
Manufactured through precision cold drawing and controlled coiling processes, stainless steel coil tubes offer consistent wall thickness, smooth internal surfaces, and excellent mechanical strength. Whether for subsea umbilicals or compact heat exchangers, they provide a durable and cost-effective solution for continuous fluid transport.
2. Application Areas
- Oil & Gas Chemical Injection Lines
Used for continuous chemical injection in offshore and onshore wells - Subsea Umbilicals & Control Systems
Ideal for long-distance fluid and signal transmission in deepwater environments - Marine & Seawater Systems
Applied in desalination plants and offshore piping exposed to seawater - Heat Exchanger Coils
Used in compact heat exchangers for efficient thermal transfer - Hydraulic & Instrumentation Systems
Suitable for high-pressure fluid transport with minimal leakage risk - Chemical Processing Plants
Used in corrosive environments for safe and continuous fluid delivery
3. Product Features
- Continuous length reduces welding joints and leakage risks
- Excellent corrosion resistance in marine and chemical environments
- High flexibility for easy installation in complex systems
- Smooth internal surface for efficient fluid flow
- High strength and pressure resistance
- Customizable coil diameter and length
- Suitable for high-pressure and subsea applications
4. Technical Specifications
| Parameter | Range |
|---|---|
| Outer Diameter (OD) | 3 mm – 25.4 mm (≈ 1/8″ – 1″) |
| Wall Thickness (WT) | 0.5 mm – 3 mm (≈ 0.02″ – 1/8″) |
| Coil Length | Up to 3000 m (≈ 9,800 ft) continuous length |
| Standards | ASTM A213 / A269 / A312, ASME SA213, EN, JIS |
| Grades | 304 / 304L / 316 / 316L / 321 / Monel 400 / K500 |
5. Manufacturing Process
Melting (EAF/VOD) → Billet Preparation → Tube Forming (Seamless/Welded) → Cold Drawing → Solution Annealing → Continuous Coiling → Surface Finishing → Non-Destructive Testing (NDT) → Dimensional Inspection → Packaging
Each coil is produced under strict control to ensure consistency, flexibility, and compliance with international standards.
6. FAQ
Q1: What is your MOQ for stainless steel coil tubes?
A: Standard MOQ is around 500 kg, but we can support smaller quantities for project testing.
Q2: What is the maximum continuous length you can supply?
A: We can supply coil lengths up to 3000 meters depending on size and grade.
Q3: What is your delivery time?
A: Typically 20–40 days depending on specifications and order quantity.
Q4: Are these tubes suitable for subsea or offshore use?
A: Yes, especially with 316L and Monel alloys, offering excellent seawater corrosion resistance.
Q5: Do you provide certification and inspection reports?
A: Yes, EN 10204 3.1 / 3.2 certificates and third-party inspections (SGS, BV, TUV) are available.
7. Conclusion
Looking for reliable stainless steel coil tubes for offshore, marine, or industrial systems? Contact us today for customized solutions, consistent quality, and fast global delivery.
Need a stainless steel solution for your project?
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