About Fujian Tengqi Pipe Technology

Fujian Tengqi Pipe Technology Co., Ltd. is a supplier of large-diameter stainless steel and nickel alloy seamless pipes for oil & gas, LNG, marine, power and chemical projects. We also supply standard-size austenitic, duplex and super duplex pipes.

As a wholly-owned subsidiary of Zhejiang Xintongda Special Steel Manufacturing Co., Ltd. (XTD), our Fujian coastal-port location supports efficient export shipping to Southeast Asia, the Middle East, Europe and the Americas.

Large-Diameter Seamless Pipes: Core Range

• Outside diameter: 141 mm to 1016 mm
• Wall thickness: Schedule 10S to XXS
• Austenitic: TP304/304L, TP316/316L, TP321, TP347, TP310S, 904L (ASTM A312 / ASME SA312, EN, DIN)
• Duplex & super duplex: UNS S31803/S32205, S32750, S32760 (ASTM A790 / A928)
• Nickel alloys: Hastelloy C-276/C-22, Inconel 625, Incoloy 800H/825, Monel 400 (ASTM B444, B423, B165)

Typical uses include high-pressure process lines, seawater and desalination systems, LNG and cryogenic service, and chloride-rich or corrosive environments.

Quality & Certifications

Every pipe undergoes non-destructive testing (NDT), dimensional inspection and metallurgical analysis.

• Management systems: ISO 9001, ISO 14001, ISO 45001
• Marine classification: ABS, DNV, LR, BV
• Regulatory: PED 2014/68/EU, AD 2000, GOST/EAC
• Offshore and oil & gas: NORSOK M-650
• Traceability: EN 10204 3.1 / 3.2 Mill Test Certificates

Industries Served

EPC contractors, engineering firms and plant owners in oil & gas and petrochemicals, LNG, marine engineering and desalination, power generation, and chemical, pharmaceutical and pulp & paper processing.