CHANGZHOU FYN METAL TECHNOLOGY CO., LTD. specializes in the supply of seamless steel tubes for boilers, heat exchangers, condensers, and pressure equipment.
We serve heat exchanger and pressure vessel manufacturers, boiler OEMs, professional steel tube importers, and stockists. For these applications, material compliance, dimensional consistency, product traceability, and complete quality documentation are essential requirements for every order.
Our product range covers carbon steel, low-alloy steel, and stainless steel seamless tubes, manufactured and supplied in accordance with major international standards, including ASTM/ASME, EN, DIN, and JIS.
Key specifications include ASTM A179, A192, A209, A210, and A213; EN 10216-2 and EN 10216-5; DIN 17175; and JIS G 3461.
Commonly supplied grades include:
Our supply range covers outside diameters from 6 to 114 mm, wall thicknesses from 0.8 to 25 mm, and lengths up to 40 meters.
Manufacturing processes include cold drawing, cold rolling, heat treatment, straightening, and finishing.
In addition to straight-length tubes, we provide value-added processing and fabrication services, including:
These services help customers reduce secondary processing and supplier coordination before fabrication.
Non-destructive examination, mechanical testing, and technological testing are performed in accordance with applicable product standards and purchase order requirements.
Strict material identification and traceability controls are maintained throughout every order. Each heat number is linked to production, inspection and testing records, finished tubes, and the corresponding Material Test Certificate (MTC).
This complete traceability chain supports material verification and quality documentation throughout the order process.
Our management systems are certified by TÜV to ISO 9001, ISO 14001, and ISO 45001. We also hold PED (Pressure Equipment Directive) certification.
When required by the project or purchase specification, third-party inspection and witnessing can be coordinated with TÜV, Bureau Veritas (BV), and SGS.
With annual sales of approximately 3000 tons, we supply customers across Southeast Asia, Central and South America, and the Middle East.
From technical specification review and production follow-up to inspection, quality documentation, and final shipment, our team stays involved throughout the order process.
Our goal is to make steel tube procurement more controlled, transparent, and easier to manage, while reducing supply-chain risk for our customers.
Send us your required standard, grade, dimensions, and quantity. Our team will review your technical requirements and provide a suitable supply proposal.