Products Description

Our Advantages

1. High Heat Transfer Efficiency

Our stainless steel G-Type Finned Tubes feature an embedded G-type fin design, mechanically locking the fins into the tube grooves to ensure tight contact between the fins and the tube, thereby improving heat transfer efficiency. Furthermore, all our tubes undergo fin adhesion testing to ensure they remain secure during long-term use.

2. Corrosion Resistance
Our tubes are made of high-quality stainless steel, offering excellent resistance to oxidation, acid gases, and moisture, making them suitable for harsh environments such as petrochemical plants, refineries, and coastal facilities.

3. Surface Treatment
Our G-Type Finned Tubes undergo pickling, passivation, and bright annealing to ensure a smooth surface that requires no subsequent cleaning, making them suitable for cleanrooms, pharmaceuticals, and high-purity heat exchange systems.

4. Quality Control
Our tubes undergo eddy current and ultrasonic testing to ensure a defect-free surface. Additionally, each tube is straightened and inspected to ensure straightness, ensuring a tolerance of ≤1.5 mm per meter.

5. Packaging and Shipping

Our pipes can be packaged using various methods, such as plastic caps, plastic film, woven bags, and wooden crates/iron frames to prevent damage or contamination during transportation. We offer land, sea, and air freight options and can provide samples.

application areas

Heat Exchangers: Air-cooled and shell-and-tube heat exchangers for power plants, refineries, and chemical processing plants.
Condensers: Ideal for steam, chemical, and petrochemical systems.
Air Coolers and Radiators: For air-cooled heat exchangers, cooling towers, and industrial air handling systems.
Gas-fired Refrigeration and Heating Equipment: For natural gas processing, petrochemical reforming, and waste heat recovery systems.
Power Generation: For boiler air preheaters, superheaters, and waste heat recovery units.
Petrochemical and Refinery: Heat exchangers, condensers, and process heaters for handling acidic, chloride-containing, or sulfur-containing media.
HVAC and Refrigeration Systems: For air conditioning, dehumidification, and industrial refrigeration equipment.

Chemical Composition

Element	C	Mn	Si	P	S	Cr	Ni	N
TP201	≤0.15	5.5–7.5	≤1.00	≤0.060	≤0.030	16.0–18.0	3.5–5.5	≤0.25
TP202	≤0.15	7.5–10.0	≤1.00	≤0.060	≤0.030	17.0–19.0	4.0–6.0	≤0.25
TP304	≤0.08	≤2.00	≤1.00	≤0.045	≤0.030	18.0–20.0	8.0–11.0	-
TP304L	≤0.035	≤2.00	≤1.00	≤0.045	≤0.030	18.0–20.0	8.0–12.0	-

Mechanical Properties

Property	Tensile Strength (MPa)	Yield Strength 0.2% (MPa)	Elongation (%)	Hardness (HB)
TP201	≥520	≥275	≥40	≤201
TP202	≥515	≥275	≥40	≤201
TP304	≥515	≥205	≥40	≤201
TP304L	≥485	≥170	≥40	≤183

Possible Alternative Grades

Alternative Grades	Reasons
Duplex 2205	It boasts higher strength and superior resistance to chloride stress corrosion cracking and pitting compared to 316L.
Super Duplex 2507	Suitable for highly corrosive and highly saline environments requiring maximum corrosion resistance.
Incoloy 800 / 825	Suitable for critical heat exchanger applications under high temperature and corrosive conditions.