TP304H Encapsulated Tube With PVDF Encapsulation ASTM A269

TP304H Encapsulated Tube With PVDF Encapsulation ASTM A269

WhyChoose MTSCO？

MTSCO is a professional factory complex in the industrial piping sector, operating four major product divisions. In 2024, MTSCO established its own production base—Siri Tubing—specializing in the manufacturing of welded coiled tubing, capillary tubes, control lines, multi-core tubing, and cables. The factory strictly follows international ASTM standards and can supply various materials including 304, 316, 2205, 2507, Alloy 625, and Alloy 825. Siri Tubing has obtained ISO certification and has long-term partnerships with international energy companies such as OXY, KOC, and ADNOC. We are not just selling products, we are also your reliable supply chain partner.

Specification

Laser Welding Process

Laser welding is a key process that determines the quality of coiled tubing. MTSCO adopts 100% laser welding process, using high-energy-density laser beams to precisely melt the formed tube. The welded seam has narrow width and small heat-affected zone, effectively avoiding oxidation and embrittlement. Laser welding ensures beautiful weld formation and strong dimensional consistency. During production, laser welding parameters are adjusted in real-time by an automatic control system to ensure stable and reliable quality of every weld seam.

Quality Control System

·Raw Material Re-inspection: All raw materials come from qualified suppliers such as POSCO, ATI, Baosteel and other internationally renowned steel mills. Upon arrival, the QC team performs PMI composition re-inspection to ensure the material meets order requirements.

·Traceable production process: The main production processes include 100% laser welding, cold drawing, and bright annealing. Each production stage is supervised on-site by experienced engineers and technicians, with professional QC inspectors participating throughout and taking photos for archiving. The entire production process uses process cards, supporting full-process traceability.

·Pre-shipment full inspection: Siri Tubing has a professional QC team that conducts a series of inspections and tests on finished products, including routine appearance inspection, PMI composition verification, dimension measurement, and more. At the same time, special inspections such as airtightness testing, hydrostatic testing, and eddy current testing are conducted. Additionally, we support third-party inspections by SGS, TUV, and BV to meet the inspection requirements of international customers.

PVDF Coating

PVDF (polyvinylidene fluoride) is a high-performance engineering plastic. It features outstanding chemical resistance, weather resistance, and UV resistance, and does not age easily even after long-term outdoor exposure. PVDF offers high mechanical strength and good toughness, combined with excellent wear resistance and flame retardancy. It is widely used in chemical piping, semiconductor equipment, and the photovoltaic industry. Meto provides PVDF coating solutions that support complex structural molding, meeting the stringent requirements for corrosion resistance and durability across various industries.

304/304L Austenitic Stainless Steel

304 is the most versatile and widely used austenitic stainless steel. Its alloy composition consists of 18% chromium and 8% nickel. It offers excellent corrosion resistance and good overall mechanical properties. It performs stably in atmospheric environments and general corrosive media. 304 offers good weldability and excellent low-temperature toughness. It is easy to machine and form. 304L is the low-carbon version. It is particularly suitable for thick-plate welding and high-temperature applications.

FAQ

Q1: What quality certifications does the product have?

A1: Siri Tubing has obtained ISO 9001 quality management system certification. All raw materials come from renowned steel mills; the production process is fully traceable; finished products undergo 100% hydrostatic testing and eddy current inspection before shipment.

Q2: What is the maximum length of encapsulated coiled tubing?

A2: Our welded coiled tubing can reach a maximum length of 50,000 feet (approximately 15 km) per coil. Ultra-long continuous production reduces the number of field splices.

Q3: What is the maximum operating pressure of coiled tubing?

A3: Welded coiled tubing has a standard hydraulic test pressure of 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.