Heat Exchanger Tube Description
Heat exchanger tubes are the core heat transfer components in heat exchangers, used to efficiently transfer heat between cold and hot fluids. Common materials include stainless steel (304/316L), alloys, carbon steel, etc., which conduct heat directly through the metal tube wall.
| Standard | Grade | Outer Diameter (mm) |
Wall Thickness (mm) | Surface Finishes | Features |
|---|---|---|---|---|---|
| EN 10216-2 | P235GH | 10.2–711 | 1.0–40 | Sandblasting,Phosphate Passivation,External Anti-rust Oil Coating |
Unalloyed steel for high temperature and pressure equipment |
| DIN 1629 | St37.0 | 10.2–219.1 | 1.6–45 | Cold Drawn Tube Polishing,Hot-dip Galvanizing |
General Carbon Steel Piping |
| DIN 17175 | St35.8 | 10–762 | 1.0–120 | Shot Blasting,Electropolishing of Inner Wall |
High Temperature Seamless Tubes with Precision Manufacturing |
| DIN 17175 | 15Mo3 | 10–762 | ≥1.6(high pressure) | Shot Blasting,Electropolishing of Inner Wall |
Molybdenum alloy steel, resistant to 500°C |
| DIN 1629 | TT St35N | 10.2–219.1 | 1.6–45 | Cold Drawn Tube Polishing,Hot-dip Galvanizing |
Precision cold-drawn tubes with low tolerance control |
| ASTM A179 | A179 | 3.2–76.2 | ≥0.4 | Pickling and Passivation,Ultrasonic Cleaning |
For condenser/low temperature heat exchangers |
| ASTM A335 | P12 | 12.7–127 | 2.0–12.7 | Aluminum Spray Coating,Nitriding Treatment | For high temperature steam pipes (Cr-Mo alloy steel) |
| ASTM A213 | 304L | 10mm～114mm | 0.6-10 | BA,Pickling Passivation |
Ultra-low carbon to avoid low-temperature brittleness |
Application of heat Exchanger Tubes
- HVAC systems
- Electric power and energy industry
- Chemical industry
- Food processing
- Pharmaceutical production
heat Exchanger Tube In stock
Carbon Steel Heat Exchanger Tube
Alloy Stee Heat Exchanger Tube
Stainless Steel Heat Exchanger Tube
U Type Heat Exchanger Tube
heat Exchanger Tube inspection
why choose GNEE
One-stop steel pipe supplier
why choose our products
GNEE Group is a modern comprehensive enterprise specializing in the production of heat exchange tubes. At present, GENN factory has four production bases in Anyang, Henan and Tianjin, with an annual production capacity of 12,000 tons.
GNEE Group has gathered many professional and technical personnel, introduced advanced equipment from the United States, Germany, Europe and Japan, and produces heat exchange tubes with diameters of φ3.2-φ762mm and wall thicknesses of 0.4-1200mm. The company adopts GB, ASTM, DIN, JIS and ISO standards. GNEE Group insists on quality first, and the factory is equipped with advanced equipment, including eddy current flaw detection, water pressure test, water tightness test, spectral analysis, X-ray, roughness test, endoscope and universal testing machine.
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