Corrosion-resistant ASTM A778 TP304L welded pipe for oil and gas application with woven bag packaging

ASTM A778 TP304L Pipe:

ASTM A778 TP304L welded stainless steel pipe is made of low-carbon austenitic stainless steel 304L, which has good corrosion resistance and excellent welding performance. Compared with standard 304 material, 304L has a lower carbon content, which effectively reduces the risk of intergranular corrosion during welding, and is particularly suitable for occasions where no heat treatment is required after welding. This material has good tolerance to a variety of organic and inorganic acids, and exhibits excellent oxidation resistance and structural stability. TP304L welded pipe is pickled and passivated, and the surface is clean and bright. It is suitable for low-pressure transmission, drainage systems, ventilation equipment, building decoration, food equipment, and non-pressure auxiliary pipelines in the oil and gas industry. Its good formability and processability make it widely used in industrial piping systems.

Parameter Table：

Factory advantages and features：

Becoming a highly reliable manufacturer of welded pipes is a result of MTSCO's strategic investment in Huxin Pipe, a factory with 36 years of pipe-making expertise. This collaborative venture ensures the delivery of top-notch welded pipes, benefiting from decades of industry experience.

MTSCO's welded pipes are available in a range of sizes, with diameters up to 3 meters and hydrostatically tested pipes in sizes up to 1.5 meters. This size diversity accommodates a broad spectrum of industrial applications, offering flexibility to meet specific project requirements.

Equipped with cutting-edge production and inspection equipment, such as a CNC bending machine, plate shearing machine, 12m annealing furnaces, pickled pool, ultrasonic eddy current integrated machines, and a physical and chemical lab, MTSCO guarantees a comprehensive manufacturing process. The bending machine, featuring a maximum thickness capacity of 60MM and a length of 12 meters, enhances precision and versatility.

Ensuring the quality of welded pipes, MTSCO follows a meticulous quality control process. Full-time quality inspectors supervise the entire production process before, during, and after manufacturing, with the additional assurance of 100% filming of all welded pipes.

MTSCO's dedication to quality is evident in its acquisition of various certificates, including ISO/PED/AD2000 certifications. These certifications underscore adherence to rigorous industry standards, instilling confidence in clients regarding the quality and reliability of MTSCO's welded pipes.

Quality Control Methods：

First, secondary inspection of raw materials

Our raw materials come from large factories such as Baosteel, Tisco,TSINGSHAN, Eastern Special Steel... 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

 MTSCO welded pipe is mainly formed by rolled plate (RBE) and bending, and the welding adopts PAW+GTAW. The whole process is automatic welding, which makes the welding efficiency increase and the weld seam more full and stable. Huxin's welded pipes have been upgraded in traditional technology, solving the problem of non circular welds in large size welded pipes, and use the 12-meter annealing furnace to make the annealing of the pipe more complete.

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

 MTSCO has professional QC team to conduct a series of inspections and experiments on the pipes, including routine appearance, PMI, size, quantity, and other inspections. At the same time, we also conducts mechanical testing, hardness testing, X-ray test, UT, ET, HT and other tests. Hydrotesting can test pipes with a maximum OD of 630mm, and we also perform 100% X-ray testing of welds.

In addition, we also accept third-party inspection, such as SGS, TUV, and BV.

Product Packaging：