Yuhong Group Co.,Ltd
| Payment Terms | L/C,T/T |
| Supply Ability | 1000 tons per month |
| Delivery Time | Depends on quantity |
| Packaging Details | IRON FRAME WOODEN CASE |
| Base Tube Material | A335 P22 Alloy Steel |
| Fin Material | Carbon Steel |
| Fin Type | Serrated |
| Fin Height (mm) | 12.7 / 15.8 / Custom |
| Application | Boiler Economizers, Air Preheaters |
| Compliance Standard | ASME Section I / ASTM A335 |
| Brand Name | YUHONG |
| Model Number | Serrated Finned Tubes |
| Certification | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008 |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | L/C,T/T | Supply Ability | 1000 tons per month |
| Delivery Time | Depends on quantity | Packaging Details | IRON FRAME WOODEN CASE |
| Base Tube Material | A335 P22 Alloy Steel | Fin Material | Carbon Steel |
| Fin Type | Serrated | Fin Height (mm) | 12.7 / 15.8 / Custom |
| Application | Boiler Economizers, Air Preheaters | Compliance Standard | ASME Section I / ASTM A335 |
| Brand Name | YUHONG | Model Number | Serrated Finned Tubes |
| Certification | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008 | Place of Origin | CHINA |
| High Light | A335 P22 serrated finned tubes ，CS fin tubes for HRSG ，heat recovery finned tubes | ||
2.1 Base Tube (A335 P22) – High-Temperatre Cuhampion
Chemical Composition per ASTM A335:
| Element | C | Mn | P max | S max | Si | Cr | Mo |
|---|---|---|---|---|---|---|---|
| % Range | 0.05-0.15 | 0.30-0.60 | 0.025 | 0.025 | 0.50 max | 1.90-2.60 | 0.87-1.13 |
2.2 Carbon Steel Fins – Cost-Effective Durability
Typical Composition (ASTM A570):
| Element | C max | Mn | P max | S max |
|---|---|---|---|---|
| % Range | 0.25 | 0.90 | 0.035 | 0.035 |
3-Step Quality-Controlled Production:
Critical Process Controls:
| Parameter | Tolerance (±) | Standard Reference |
|---|---|---|
| Base Tube OD | 0.75 mm | ASME B36.10M |
| Fin Height | 0.20 mm | HEI Standard 2627 |
| Fin Thickness | 0.05 mm | |
| Fin Pitch | 0.3 fins per inch | |
| Straightness | 1.5 mm per meter | ASTM E213 |
| Industry | Application Example | Temperature Range |
|---|---|---|
| Petrochemical | Hydrocracker Charge Heaters | 300°C - 550°C |
| Power Generation | HRSG Economizers | 250°C - 450°C |
| Waste Heat Recovery | Cement Plant Pre-heaters | 400°C - 600°C |
| Refining | Crude Oil Preheaters | 280°C - 480°C |
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Importer,Exporter,Trading Company,Seller,Other
Year Established:
2007
Total Annual:
50M-70M
Employee Number:
50~850
Ecer Certification：
Verified Supplier
Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou... Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou...
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