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| Brand Name: | YUHONG |
| Model Number: | ASME SA213 T22 |
| MOQ: | 10pcs |
| Price: | Negotiable |
| Delivery Time: | Depends on order quantity |
| Payment Terms: | T/T, L/C AT SIGHT |
High Frequency Weld Serrated Type T22 Fin tube for Heat Recovery Steam Generation
Serrated fin tubes, particularly High-Frequency Welded (HFW) Type T22 finned tubes, are widely used in waste heat boilers for heat recovery steam generation (HRSG) systems. The serrated design enhances heat transfer efficiency by disrupting boundary layers and increasing turbulence, ensuring optimal thermal exchange in low-temperature differential environments. The T22 material (1.7380/10CrMo9-10) offers excellent high-temperature strength and corrosion resistance, critical for handling flue gases containing corrosive elements.
High Frequency Weld Serrated Type Fin materials
| ASME | ASTM | EN | fin thickness | fintip temperature |
| SA1008 | 1.0338 (DC04) | 0.8mm up to 3.0mm | max. 490℃ | |
| A240 TP410S | 1.4000 (X6Cr13) | 0.8mm up to 3.0mm | max. 650℃ | |
| A240 TP409 | 1.4512 (X2CrTi12) | 0.8mm up to 3.0mm | max. 650℃ | |
| A240 TP304 | 1.4301 (X5CrNi18-10) | 0.8mm up to 3.0mm | max. 850℃ | |
| A312 TP316L | 1.4404 (X2CrNiMo17-12-2) | 0.8mm up to 3.0mm | max. 850℃ | |
| A312 TP316Ti | 1.4571 (X6CrNiMoTi17-12-2) | 0.8mm up to 3.0mm | max. 850℃ | |
| A312 TP310S | 1.4845 (X8CrNi25-21) | 0.8mm up to 3.0mm | max. 1000℃ |
High Frequency Weld Serrated Type Fin Dimension
| ASA nominal pipe | Tube OD | Fin height min./max. HF I - fin solid | Fin height min./max. HF I - fin serrated |
| 1/2" | 21,3 mm | 6,5 – 10 mm | 13 – 32 mm |
| 25 mm | 6,5 – 13 mm | ||
| 25,4 mm | 6,5 – 13 mm | ||
| 3/4" | 26,9 mm | 6,5 – 14 mm | |
| 31,8 mm | 6,5 – 19 mm | ||
| 1" | 33,7 mm | 6,5 – 19 mm | |
| 38 mm | 6,5 – 25 mm | ||
| 1 1/4" | 42,4 mm | 6,5 – 27 mm | |
| 44,5 mm | 6,5 – 29 mm | ||
| 1 1/2" | 48,3 mm | 6,5 – 31 mm | |
| 51 mm | 6,5 – 32 mm | ||
| 57 mm | 6,5 – 32 mm | ||
| 2" | 60,3 mm | 6,5 – 32 mm | |
| 2 1/2" | 76,1 mm | 6,5 – 32 mm | |
| 3" | 88,9 mm | 6,5 – 32 mm | |
| 101,6 mm | 6,5 – 32 mm | ||
| 4" | 114,3 mm | 6,5 – 32 mm | |
| 5" | 139,7 mm | 6,5 – 32 mm | |
| 141,3 mm | 6,5 – 32 mm | ||
| 6" | 168,3 mm | 6,5 – 32 mm | |
| 8" | 219,1 mm | 6,5 – 32 mm |
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