| Tube Standard: | ASTM A312， ASME SA312 | Tube Material Grades: | TP304， TP304L， TP316， TP316L， TP321， TP347， TP347H |
|---|---|---|---|
| Fin Material: | Carbon Steel， Stainless Steel， Alloy Steel | Type: | HFW Serrated Finned Tube |
| Fin Pitch: | 2-14mm | Fin Height: | Up To 40 Mm |
| Tube Length: | 18 Meters Max | Applications: | Heater Parts，Refrigeration Parts，heat Exchanger，Cooler，Fluid Cooling |
| High Light: | Welded Spiral Serrated Fin Tubes， TP347 Heat Exchanger Tubes， High Frequency Serrated Fin Tubes | ||
ASTM A312 TP347 High Frequency Welded Spiral Serrated Finned Tubes For Heat Exchangers
High Frequency Welded Serrated Fin Tubes is a spiral fin tube formed by welding the steel strip on the base tube surface with high frequency welding technique， And the fin strip is serrated before welding. The High Frequency Welded Serrated Fin Tube is one kind of tubular type of efficient heat transfer elements which has serrated fins. Our TONG CHUANG GROUP has more than 30 years’ manufacturing experience of fin tubes and our high-quality fin tubes have been exported to more than 60 countries.
Equivalent Grades:
| STANDARD | UNS | WERKSTOFF NR. | EN |
| SS 347 | S34700 | 1.4550 | X6CrNiNb18-10 |
Specifications:
| Tube Specifications | ASTM A 312， ASME SA 312 |
| Tube Grade | TP347 |
| Tube O.D | 1/2” – 48” |
| Wall Thickness | SCH10 – SCHXXS |
| Tube Length | As Client Request |
| End | Beveled End， Plain End， Treaded |
| Fin Material | Carbon Steel / Stainless Steel / Alloy Steel |
| Fin Type | HFW Serrated Fin Tubes |
| Fin Thickess | 0 – 10mm |
| Fin Height | 0 – 20mm |
| Fin Pitch | As Client Request |
Composition Analysis:
| ASTM A312 | Mn | Si | C | Ni | P | S | Cr | Mo | |
| TP347 | min. | – | – | – | 9 | – | – | 17 | 2 |
| max. | 2 | 1 | 0.08 | 13 | 0.045 | 0.03 | 20 | 3 | |
Mechanical Properties:
| Elongation min (% in 50mm) | 40 |
| Yield Strength 0.2% Proof min (MPa) | 205 |
| Tensile strength ( MPa )，min | 515 |
| Hardness Rockwell B (HR B) max | 95 |
Applications:
Power Plants
Heat Recovery Steam Generators
Petrochemical Industries
Marine Applications
Refrigeration Applications
Economizers
Oil and Gas Coolers
Plumbing and Air Conditioning
Condensers and Evaporators
Shell and Tube Heat Exchangers
