ASTM B725/B730 Alloy 200/UNS N02200 Welded Coiled Tubing Oilfield Service

The ASTM B730 standard covers nickel alloy welded and annealed coils, of which Alloy 200 (UNS N02200) is a commercially pure nickel material with excellent corrosion resistance and good mechanical properties. Alloy 200 has a nickel content of up to 99.6% and exhibits extremely high chemical stability in neutral and alkaline environments, making it particularly suitable for caustic, food processing and chemical process environments. The material has good ductility, weldability and heat resistance, and is suitable for use at low to medium temperatures. The B730 welded coil form is convenient for laying over long distances or in confined spaces, and is widely used in oilfield control systems, chemical injection, heat exchangers, instrumentation and other industrial scenarios that require precise fluid delivery. Especially in the oil and gas industry, this type of coil is often used in **chemical injection systems (CIS) and hydraulic control systems (HCS)**, providing reliable corrosion resistance and long-term operation guarantees.

Chemical composition：

Factory advantages：

MTSCO, which provides coiled tubing services, has been supplying quality products to the international geothermal, heat exchanger, shipbuilding, oil and gas industries since 2006. We can manufacture to various international standards covering major materials such as 304, 316, 2205, 2507, alloy 625, 825 and more. In recent years, we have made remarkable progress in the field of control line tubing, downhole control lines and chemical injection control lines, mainly producing welded/seamless continuous tubulars, single/multi-core control lines, capillary tubing and so on. Choosing MTSCO has 5 advantages to give you peace of mind: Firstly, our welded coiled tubing are available in lengths up to 33,000fts/coil. Second, welded coiled tubing are hydrostatically tested to a max of 100MPA. Thirdly, seamless coiled tubing can be up to 120kg/reel. Fourthly, we offer various types of encapsulated overmoulding materials to meet diversified needs. Finally, MTSCO coiled tubing have been awarded ISO/PED certificate, which provides a reliable certification of product quality and standard.

Quality Control Methods:

First, secondary inspection of raw materials. Our raw materials come from large factories such as POSCO，JISCO, ANSTEEL, ATI, NYK, Outokumpu, TSINGSHAN, Baosteel, WALSIN, ... Each batch of raw materials requires MTC and PMI. After the raw materials arrive, we conduct PMI and other inspections again to ensure that they meet the requirements.

Second, traceability of the production process. The mainly production process includes welding, cold drawing, bright annealing and plastic wrapping. Each process is supervised by experienced engineers and technicians. Each link is supervised by professional qc inspectors and photographed for archiving. The entire process uses process cards to ensure accuracy and traceability.

Third, 100% inspection before shipment. Siri Tubing has professional QC team to conduct a series of inspections and experiments on the tubes, including routine appearance, PMI, size, quantity, and other inspections. At the same time, we also conducts mechanical testing, hardness testing, airtightness,UT, ET, HT and other tests. All welded coiled tubing have passed 100% high-pressure testing,with a conventional testing pressure of 40MPa and a maximum of 100MPa. In addition, we also accept third-party inspection, such as SGS, TUV, and BV.

Product Packaging: