Stainless Steel Welded Tube
Austenitic / Duplex Steel / Nickel Alloy / Cobalt AlloyASTM A269 TP316L is a low-carbon austenitic stainless steel. Because it contains molybdenum, it has excellent corrosion resistance, especially in chloride environments. It has stronger resistance to pitting and crevice corrosion.
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Parameter Table:
Grade | Standard | Outside Diameter | 6-25mm |
TP304 | ASTM A269 | Wall Thickness | 0.5-3mm |
Length | ≤12m | ||
Surface | Annealed Pickled/ Bright Annealed/ Polished | ||
Inspection | Appearance/Size/PMI Inspection | ||
Certificates | ISO/PED/AD2000/TS | ||
Package | End protection/ Woven bags/ Wooden cases |

A269 TP316L tube:
TP316L is a low-carbon austenitic stainless steel. Because it contains molybdenum, it has excellent corrosion resistance, especially in chloride environments. It has stronger resistance to pitting and crevice corrosion. Compared with TP304L, TP316L performs better in chemical stability and high-temperature strength, and its low carbon content effectively reduces the risk of intergranular corrosion after welding, making it suitable for welding. TP316L welded pipes have a smooth surface and stable welds, and are widely used in food processing, pharmaceuticals, chemicals, seawater desalination, heat exchangers and other industries with high requirements for hygiene and corrosion resistance.
Factory advantages and features:
Becoming a highly reliable welded pipe manufacturer is the result of MTSCO's strategic investment in HUXIN Pipe, which has 36 years of professional pipe manufacturing experience. The cooperative enterprise has ensured the delivery of first-class welded pipes with decades of industry experience.
At the same time, MTSCO has built a highly secure supply chain system. Through strategic investment in HUXIN PIPE, which has 35 years of experience in welded pipe manufacturing, MTSCO has reached a deep strategic cooperation with it and become its only international sales center, fully responsible for global sales and promotion. HUXIN has obtained many international certifications such as ISO, PED, AD2000, M650, and is equipped with a complete equipment system including CNC bending machine, shearing machine, 12-meter annealing furnace, pickling tank, ultrasonic eddy current integrated machine. The perfect physical and chemical experimental instruments further strengthen all links from production to quality control, providing full-process guarantee for welded pipe products.
MTSCO's welded pipes are available in a variety of specifications, with a maximum diameter of 3 meters, and the maximum diameter of the pipes that have been hydrostatically tested can reach 1.5 meters. This variety of sizes is suitable for a wide range of industrial scenarios and provides flexible solutions for projects.
The company is equipped with advanced production and testing equipment, including CNC bending machines (maximum thickness 60mm, length 12 meters), to ensure high-precision processing and stronger adaptability. Full-time quality inspectors cover the entire production process, and all welded pipes are 100% photographed and recorded to ensure quality tracking and controllability.
MTSCO always adheres to a rigorous quality management system and has passed ISO, PED, AD2000 and other certifications, demonstrating its high attention to industry standards and providing customers with highly reliable welded pipe products. The exclusive cooperation mechanism improves collaborative efficiency and production capacity, providing customers with more cost-effective welded pipe solutions.
Quality Control Methods
Strictly control the quality of raw materials
The raw materials come from large steel mills such as Baosteel, Qingshan, TISCO, and Dongfang Special Steel. MTC and PMI reports are required for each batch. PMI inspection is carried out again after arrival at the factory to double confirm the accuracy of the material and ensure the quality of the source.
Automated welding and full-process traceability management
The product is formed by rolling and bending, and adopts PAW + GTAW fully automatic welding process, and the weld is full and stable. The upgraded process solves the problem of out-of-round welds of large-diameter thick-walled pipes, and the 12-meter annealing furnace improves the annealing quality. The entire production process is monitored by the engineering and technical team and quality inspection personnel, and supporting process cards and image archives to ensure that every detail is traceable.
Comprehensive inspection before delivery
All finished products must pass routine inspections such as appearance, PMI, and size before shipment, and undergo comprehensive inspections such as mechanical properties, hardness, water pressure, UT, ET, and 100% X-ray inspection. We also accept quality verification by third-party testing agencies such as SGS, TUV, and BV to ensure customer confidence in use.
Product Packaging:
Product | Packaging |
LCL PIPE | Plywood crate + protective pipe caps on both ends |
FCL PIPE | Woven bag + protective pipe caps on both ends |
LCL/FCL TUBE | Plywood crate + individual plastic bag wrapping + end caps on both sides |
| Plywood case + sealing face protector cap + plastic bubble wrap |
LCL/FCL Flange | EPAL pallet + sealing face protector cap |
| Plywood case + inner plastic bag packaging / vacuum-sealed packaging |
LCL Fittings | Packed in plywood case with inner plastic bag or vacuum-sealed packaging; for sizes above 12 inches, packed on pallet with plastic film wrapping. |
Low pressure / high pressure fittings | Carton box + plywood case |
Welded coil tube | Iron Shaft |
Welded / seamless coil tube | Wooden spool |
Welded coil tube | Iron-wooden spool |
Seamless coils (small quantity) | Plastic shaft |
Container | Wooden strip reinforcement |
Rope reinforcement |

Manufacturing Experience
Plant Area
Max Diameter of Welded Pipe
Annealing Furnace Length
Nickel Alloy
NI-MO: N10001,N10665,N10675...
NI-CR-MO: N10276,N06022,N06035,N06455,N06002...
NI-CR-MO-CU: N06030,N06200,N08031,N08825,N08020...
NICR-MO-W: N06230...
NICKEL: N02200,N02201...
NI-CU: N04400,N05500...
NI-CR-FE: N06600,N06601,N06690,N08800,N08810,N08811...
NI-CR-MO-NB: N06625,N07718...
Austenitic
304/L/H/N, 316/L/H/N/Ti, 321/H, 309/H, 310S, 347/H, 317/L, 904L...
Duplex Steel
31803, 32205, 32750, 32760...
Cobalt Alloy
Alloy 188/ UNS R30188, Alloy L-605/ UNS R30605, Alloy S-816, Alloy 6B, UMCo50, FSX-414, MP-159...
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