ERW 8 inch ASTM A358 310S/310H welded stainless pipe with woven bag for heat exchanger systems

Parameter Table：

310S welded pipe：

310S welded stainless pipe is made of high-nickel and high-chromium austenitic stainless steel, which has excellent high temperature resistance and can be used for a long time in an environment above 1100℃. It also has good oxidation resistance and corrosion resistance. Its low-carbon design effectively prevents intergranular corrosion after welding, and it has excellent welding performance, high mechanical strength and good toughness. This product is widely used in high-temperature industrial equipment such as boilers, furnace tubes and heat exchangers, as well as in petrochemical, electric power, food processing and aerospace fields. It is particularly suitable for conveying high-temperature corrosive media and meets the needs of complex and harsh working conditions.

Factory advantages and features:

Becoming a highly reliable welded pipe manufacturer is the result of MTSCO's strategic investment in HUXIN Pipe Industry, which has 36 years of professional pipe manufacturing experience. The partnership has ensured the delivery of first-class welded pipes with decades of industry experience.

MTSCO's welded pipes are available in a variety of specifications, with diameters up to 3 meters and hydrostatically tested pipes up to 1.5 meters. This diversity of sizes caters to a wide range of industrial applications, providing flexibility to meet specific project requirements.

MTSCO is equipped with state-of-the-art production and inspection equipment such as CNC bending machines, shearing machines, 12-meter annealing furnaces, pickling tanks, ultrasonic eddy current integrated machines and physical and chemical laboratories, ensuring a comprehensive production process. The bending machine has a maximum thickness of 60MM and a length of 12 meters, which improves accuracy and versatility.

To ensure 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 production, and guarantee 100% shooting of all welded pipes.

MTSCO's dedication to quality is reflected in its various certifications, including ISO/PED/AD2000. These certifications underscore adherence to stringent industry standards, giving customers confidence in the quality and reliability of MTSCO's welded pipes.

Quality Control Methods

Secondary inspection of raw materials

The raw materials used by MTSCO are all from well-known Chinese steel mills, such as Baosteel, Qingshan, TISCO, Dongfang Special Steel, etc., to ensure reliable quality. Each batch of raw materials must provide a material certificate (MTC) and PMI (spectral analysis) report. After the raw materials arrive at the factory, we will also conduct a secondary PMI test to ensure that they fully meet the production requirements and eliminate the risk of unqualified raw materials.

Production management with traceability throughout the process

MTSCO's welded pipes are mainly formed by rolling (RBE) and bending, using PAW+GTAW automatic welding process to ensure full weld formation and stable quality. We have upgraded the technology based on traditional processes, especially for large-diameter thick-walled welded pipes. Problems such as out-of-round welds have been optimized. At the same time, a 12-meter-long annealing furnace is used for solid solution treatment to make the annealing effect more uniform and thorough. The production process is supervised by experienced engineers and quality inspectors throughout the process. Each process is recorded and photographed for archiving, and the whole process is traceable in combination with the process flow card.

100% quality inspection before leaving the factory

Before leaving the factory, MTSCO conducts a comprehensive quality inspection on each welded pipe, including basic inspections such as appearance, size, quantity, PMI, as well as mechanical property testing, hardness testing, X-ray flaw detection, ultrasonic testing (UT), eddy current testing (ET), water pressure testing, etc. The maximum supported water pressure test is an outer diameter of 630mm, and the weld part is 100% X-ray non-destructive testing. We also support the verification of third-party testing agencies such as SGS, TUV, BV, etc. to ensure that each batch of products is of reliable quality and meets the standards.

Product Packaging: