Yuhong Group Co.,Ltd
Yuhong Holding Group Co.,LTD
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ASTM A312 TP347 High Frequency Welded Spiral Serrated Fin Tubes For Convection Tube Coils
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 YUHONG 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:
