 |
MTSCO provides stainless steel and nickel alloy product solutions for global industrial piping projects, serving industries such as oil and gas, chemicals, marine, and heat exchange equipment. For control line products, MTSCO established its own factory, Siri Tubing, in 2024, specializing in the production of welded coiled tubing, capillary tubing, control line tubing, and multi-core cables, all of which are ISO-certified. Leveraging our in-house manufacturing capabilities, MTSCO ensures more consistent quality control, reliable delivery coordination, and robust project support. We do more than just sell products—we are your trusted supply chain partner.
| Quantity: | |
|---|---|
625 Nickel Alloy Bright Annealed Welded Coiled Tubing With Wooden Reel Packing
Company and Factory Introduction
MTSCO provides stainless steel and nickel alloy product solutions for global industrial piping projects, serving industries such as oil and gas, chemicals, marine, and heat exchange equipment. For control line products, MTSCO established its own factory, Siri Tubing, in 2024, specializing in the production of welded coiled tubing, capillary tubing, control line tubing, and multi-core cables, all of which are ISO-certified. Leveraging our in-house manufacturing capabilities, MTSCO ensures more consistent quality control, reliable delivery coordination, and robust project support. We do more than just sell products—we are your trusted supply chain partner.
Material Properties Of 625 Nickel Alloy
625 nickel alloy welded coils are composed primarily of nickel (Ni), chromium (Cr), molybdenum (Mo), and niobium (Nb). This composition provides high strength, good toughness, and excellent corrosion resistance. It demonstrates stability in chloride, seawater, acidic media, and environments subject to alternating oxidation and reduction, and can be used long-term under high-temperature, high-pressure conditions, for the transport of corrosive fluids, and in complex installation scenarios. This material is suitable for industrial systems with high requirements for reliability and continuity.
Application Scenarios
This product is widely used in marine engineering, oil and gas extraction, chemical processing plants, heat exchange systems, and instrumentation control pipelines. It is particularly suitable for umbilical cables on offshore platforms, chemical injection lines, hydraulic control systems, and environments involving the transport of highly corrosive media. Welded coiled tubing reduces the need for intermediate joints, facilitating continuous installation over long distances, and is ideal for project sites with limited space and high installation efficiency requirements.
 |  |
Specifications
Item | Details |
Product Type | Welded Coiled Tubing |
Material Grade | Alloy 625 (304/304L, 316/316L/316Ti, S31803/2205, S32750/2507, alloy 825 available) |
Outer Diameter | 3.18-38.1mm (1/8"-11/2") |
Wall Thickness | 0.4–2.54 mm (0.016–0.1") |
Length | <15000 m (<50,000 ft) |
Standards | ASTM B704 |
Manufacturing Process | 100% Laser Welding, Cold Drawing, Bright Annealing |
Pressure Test | Conventional 5000 PSI / Max. 15000 PSI |
Inspection | Appearance, PMI, Size, Airtightness, ET, Hydro Pressure Test |
Certificates | ISO |
Packaging | Plastic Reel, Wooden Reel, Solid Wooden Reel, Iron Reel, Wooden Box |
Optional Service | Encapsulation, Customized Length, Third-party Inspection |
Manufacturing Process Flow
The core manufacturing process for these welded coiled tubes typically includes strip welding, cold drawing, bright annealing, eddy current testing, and hydraulic/air tight testing, followed by precision coiling, marking, and final inspection as per project requirements. For small-diameter control line products, process stability directly impacts weld quality, dimensional consistency, and subsequent installation performance. MTSCO’s in-house facility, Siri Tubing, employs mature processes such as 100% laser welding, cold drawing, bright annealing, and plastic wrapping, making it suitable for the production of continuous-length control lines.
Quality Control System
·Raw Material Re-inspection: Raw materials are sourced from suppliers such as POSCO, TSINGSHAN, and JISCO. Each batch must be accompanied by an MTC and PMI. Upon arrival at the factory, materials undergo re-inspection to confirm that the material properties meet order specifications. MTSCO employs secondary verification to minimize the risk of material errors and mix-ups.
·Process Traceability: Every stage—from welding, cold drawing, and annealing to packaging—is supervised by the QC team, with records maintained through production process sheets and photographic documentation.
·Pre-shipment 100% Inspection: Prior to shipment, inspections are conducted for appearance, dimensions, quantity, PMI, airtightness, ET, and hydraulic pressure tests. We also support third-party inspections by SGS, TÜV, and BV. MTSCO provides comprehensive quality assurance documentation for high-standard projects.
FAQ
Q1: Do you accept third-party quality inspections?
A1: We fully support third-party inspections designated by our customers, such as SGS, TÜV, and BV.
Q2: What packaging options are available for the coils? How do you prevent damage during transport?
A2: We offer a variety of packaging options, including plastic reels, wooden reels, solid wooden reels, iron reels, iron and wooden reels, and wooden boxes. We reinforce the coils with wooden strips and ropes when loading them into crates to prevent impact during transport and ensure the goods arrive safely.
Q3: What is the maximum operating pressure of the coiled tubing?
A3: Our welded coiled tubing undergoes standard hydraulic testing at 5,000 PSI and can withstand a maximum test pressure of 15,000 PSI, meeting the requirements of the vast majority of high-pressure applications.
