Our Core Services
Finned tubes, heat exchangers and custom heat transfer solutions
Aluminium or copper fins extruded onto the base tube under pressure — a true bimetallic bond with no solder, glue or filler.
A groove cut into the tube wall locks the fin foot in metal-to-metal contact for high-temperature and vibrating duties.
L, LL and KL wrapped fins — the economical choice for clean air, corrosive air and higher-vibration duties.
A metallurgical weld that survives 600 °C, flue gas and soot-blower erosion — the standard for economisers and waste heat.
A narrow, clean weld for thin-wall stainless tubes, with minimal heat input and no loss of corrosion resistance.
Fins rolled from the tube wall itself — no joint, no contact resistance, no bimetallic couple.
Complete extruded fin tube machines, tooling and commissioning support for local production.
Fin tube bundles and air cooler assemblies built to drawing, pressure tested and shipped with inspection records.
About Us
CANGZHOU DATANG STEEL PIPE CO., LTD. has been making finned tubes since 2007 — from a single extrusion line to a 16,000 m² plant serving more than 3,000 customers worldwide. We are a manufacturer, not a trading company: research, production and sales sit under one roof in Cangzhou, Hebei.
ISO 9001 production with dimensional inspection, air-pressure leak testing and pull-out bond testing before every shipment.
Third-party inspection coordination, export packing and export documentation for customers worldwide.
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Frequently Asked Questions
Answers to the questions our customers ask most often — from tube selection and materials to inspection and lead time.
Extruded bimetal, embedded (G-type), L/LL/KL, high-frequency welded, laser welded and integral finned tubes, plus studded and other specialities. Base tubes in carbon steel, stainless steel, alloy steel, copper and copper-nickel.
Air-cooled heat exchangers, refineries, petrochemical and chemical plants, power generation, oil and gas, HVAC, and process heating or cooling.
ISO 9001 certified production. Each batch is checked for tube and fin dimensions, weld or bond integrity and air-pressure tightness before packing; third-party inspection can be arranged.
Yes. Send the drawing, sample or operating conditions — tube OD, wall thickness, fin height, fin pitch, materials and quantity — and we confirm feasibility, price and lead time within one working day.
Standard carbon steel finned tubes usually ship in 15–25 days after drawing approval; stainless and alloy steel orders take 25–35 days. The exact date is confirmed in the quotation.
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