YUHONG HOLDING GROUP CO., LTD
| Supply Ability | 5000 meters/day |
| Product | Solid Fin Tube |
| Delivery Time | 50-120 days |
| Payment Terms | T/T,L/C |
| Material | ASTM A312 TP321H |
| Application | Waste Heat Recovery Boilers, Heat recovery steam generators and heat recovery units, Process gas heat recovery systems, Refineries |
| Package | Iron frame wooden case |
| Packaging Details | Iron frame wooden case |
| Model Number | N/A |
| Brand Name | YUHONG |
| Certification | ISO9001:2015; ISO14001:2015; ISO45001:2018; PED 2014/68/EU; WPS/PQR/WPQ; ISO 3834 |
| Place of Origin | China |
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Product Specification
| Supply Ability | 5000 meters/day | Product | Solid Fin Tube |
| Delivery Time | 50-120 days | Payment Terms | T/T,L/C |
| Material | ASTM A312 TP321H | Application | Waste Heat Recovery Boilers, Heat recovery steam generators and heat recovery units, Process gas heat recovery systems, Refineries |
| Package | Iron frame wooden case | Packaging Details | Iron frame wooden case |
| Model Number | N/A | Brand Name | YUHONG |
| Certification | ISO9001:2015; ISO14001:2015; ISO45001:2018; PED 2014/68/EU; WPS/PQR/WPQ; ISO 3834 | Place of Origin | China |
| High Light | ASTM A312 TP321H finned tube ，high-frequency welded fin tube ，waste heat boiler finned tube | ||
ASTM A312 TP321H High-Frequency Welded Finned Tube for Waste Heat Boilers is a high-performance heat transfer component designed for demanding thermal recovery systems. Manufactured with ASTM A312 TP321H austenitic stainless steel tubes as the base material, these finned tubes combine excellent high-temperature strength, oxidation resistance, and reliable heat transfer efficiency.
The high-frequency resistance welding process creates a strong metallurgical bond between the tube and fins, ensuring excellent mechanical stability under continuous thermal cycling, vibration, and high-temperature operating conditions. Compared with conventional finning methods, high-frequency welded fins provide a higher fin-to-tube connection strength and better long-term performance in harsh industrial environments.
TP321H is a stabilized stainless steel grade containing titanium, specifically developed for high-temperature service. It offers improved creep resistance and maintains mechanical properties during prolonged exposure to elevated temperatures, making it suitable for waste heat recovery equipment.
Typical applications include:
These finned tubes are especially suitable for applications requiring high corrosion resistance, thermal stability, and long service life under elevated temperatures.
The following dimensions are commonly available for ASTM A312 TP321H High-Frequency Welded Finned Tubes. Customized dimensions can be manufactured according to customer drawings and project requirements.
| Item | Typical Range |
|---|---|
| Base Tube Outside Diameter | 16 mm – 219 mm |
| Tube Wall Thickness | 1.5 mm – 20 mm |
| Tube Length | Up to 18,000 mm |
| Fin Height | 6 mm – 30 mm |
| Fin Thickness | 0.8 mm – 3.0 mm |
| Fin Pitch | 2.0 mm – 10 mm |
| Fin Outside Diameter | 30 mm – 280 mm |
| Element | Composition (%) |
|---|---|
| Carbon (C) | ≤ 0.04–0.10 |
| Chromium (Cr) | 17.0–19.0 |
| Nickel (Ni) | 9.0–12.0 |
| Manganese (Mn) | ≤ 2.00 |
| Silicon (Si) | ≤ 1.00 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.030 |
| Titanium (Ti) | 5 × C – 0.70 |
| Nitrogen (N) | ≤ 0.10 |
| Iron (Fe) | Balance |
| Property | Requirement |
|---|---|
| Tensile Strength | ≥ 515 MPa |
| Yield Strength (0.2% Offset) | ≥ 205 MPa |
| Elongation (50 mm) | ≥ 35% |
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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