YUHONG HOLDING GROUP CO., LTD
| Supply Ability | 2000 tons/month |
| Serrated Finned Tubes Use | For large equipment, Heat Exchanger / Boiler / Furnaces / Evaporators, etc |
| Serrated Finned Tubes Standard | ASTM A312 |
| Delivery Time | 35-60 days |
| Serrated Finned Tubes Fin Height | 7~26 mm |
| Serrated Finned Tubes Packing | Ply-wooden Case With Iron Frame |
| Payment Terms | TT, LC |
| Serrated Finned Tubes Material Base Tube Length | ≤30 Meters |
| Serrated Finned Tubes Max Operating Temperature | 500℃ |
| Serrated Finned Tubes Material | TP304H Base Tubes and SS304H Fins |
| Finned Tubes Type | Serrated Finned Tubes |
| Serrated Finned Tubes Base Tube Outer Diameter | 16~219 MM |
| Packaging Details | Ply-wooden Case With Iron Frame |
| Model Number | Serrated Finned Tubes |
| Certification | ABS, BV, DNV, CCS, LR |
| Brand Name | Yuhong |
| Place of Origin | China |
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Product Specification
| Supply Ability | 2000 tons/month | Serrated Finned Tubes Use | For large equipment, Heat Exchanger / Boiler / Furnaces / Evaporators, etc |
| Serrated Finned Tubes Standard | ASTM A312 | Delivery Time | 35-60 days |
| Serrated Finned Tubes Fin Height | 7~26 mm | Serrated Finned Tubes Packing | Ply-wooden Case With Iron Frame |
| Payment Terms | TT, LC | Serrated Finned Tubes Material Base Tube Length | ≤30 Meters |
| Serrated Finned Tubes Max Operating Temperature | 500℃ | Serrated Finned Tubes Material | TP304H Base Tubes and SS304H Fins |
| Finned Tubes Type | Serrated Finned Tubes | Serrated Finned Tubes Base Tube Outer Diameter | 16~219 MM |
| Packaging Details | Ply-wooden Case With Iron Frame | Model Number | Serrated Finned Tubes |
| Certification | ABS, BV, DNV, CCS, LR | Brand Name | Yuhong |
| Place of Origin | China | ||
| High Light | Serrated Finned Tubes ASTM A312 TP304H ，High Temperature Serrated Finned Tubes ，Serrated Finned Tubes 500℃ operating | ||
Serrated Finned Tubes ASTM A312 TP304H For High Operating Temperature 500℃
ASTM A312 TP304H seamless stainless steel pipes are one of the basic and common pipe materials used in manufacturing serrated finned heat exchanger tubes. They are widely used in high-temperature flue gas waste heat recovery, waste heat boilers, HRSG, and industrial air cooling systems.
ASTM A312 is standard specification for seamless, straight-seam welded, and heavily cold-worked austenitic stainless steel pipes for high-temperature service.TP304H (UNS S30409) is a high-carbon 304 stainless steel. Its carbon content ranges from 0.04% to 0.10%, and compared to standard TP304 and TP304L, it exhibits superior high-temperature creep strength. Under long-term high-temperature environments, it maintains stable mechanical properties and possesses excellent oxidation resistance and moderate corrosion resistance to flue gases and weak acid media.
Chemical Composition (%)
| Grade | C | Mn | P | S | Si | Cr |
| TP304H | 0.04-0.10 | 2.00 | 0.045 | 0.030 | 1.00 | 18.00-20.00 |
Mechanical Properties
| Grade | Tensile Strength,min | Yield Strength (0.2%Offset,min) |
| 75ksi (515 MPa) | 30ksi (205 MPa) | |
| TP304H | Elongation min. % | Heat Treating Temperature min. |
| 35% | 1900°F [1040°C] |
Serrated fins are continuously wound around the outer surface of the TP304H base tube and welded using a high-frequency resistance welding process. V-shaped notches are provided at the fin edges to break the fluid thermal boundary layer and enhance turbulence. Compared to ordinary solid finned tubes, the heat transfer efficiency is improved by 25%–40%; the serrated gaps reduce ash deposition and scaling, making it particularly suitable for dusty flue gas conditions.
Typical Application:Waste heat recovery boilers, HRSG economizers, industrial air coolers, flue gas heat exchangers, high-temperature process heat transfer equipment for petrochemical and power generation industries.
Available Sepecification Max Operating Temperature 500℃
| Finned Tubes Type | Outer Diameter | Fin Height | Fin Thickness | Fin Pitch | Tube Length |
| Serrated Finned Tubes | 16-219MM | 7-26MM | 0.8-3.0MM | 3.5-4.0mm | ≤30Meters |
Company Details
Business Type:
Manufacturer,Importer,Exporter,Trading Company,Seller,Other
Year Established:
1990
Total Annual:
50M-70M
Employee Number:
50~800
Ecer Certification：
Verified Supplier
Yuhong Holding Group has more than 35 years experience for pipeline products, till now we have 3 big joint venture factories, the total production area more than 130000 square meters, and more than 600 workers with 106 production lines give our clients excellent supporting always. &n... Yuhong Holding Group has more than 35 years experience for pipeline products, till now we have 3 big joint venture factories, the total production area more than 130000 square meters, and more than 600 workers with 106 production lines give our clients excellent supporting always. &n...
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