YUHONG HOLDING GROUP CO., LTD
| Payment Terms | L/C, T/T |
| Supply Ability | 10000 tons/month |
| Delivery Time | According to the quantity |
| Packaging Details | IRON FRAME CASE WITH PLASTIC CAP |
| Fin Wall thickness | 0.8-3mm |
| Base Tube Material | P1, P5, P11, P12, P22, P91 |
| Fin pitch | FPI: 3-25 |
| Fin Material | AISI 304,316,409,410,321,347 |
| Fin height | 5-30mm |
| Product Name | Max 43M/PC |
| Brand Name | YUHONG GROUP |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | L/C, T/T | Supply Ability | 10000 tons/month |
| Delivery Time | According to the quantity | Packaging Details | IRON FRAME CASE WITH PLASTIC CAP |
| Fin Wall thickness | 0.8-3mm | Base Tube Material | P1, P5, P11, P12, P22, P91 |
| Fin pitch | FPI: 3-25 | Fin Material | AISI 304,316,409,410,321,347 |
| Fin height | 5-30mm | Product Name | Max 43M/PC |
| Brand Name | YUHONG GROUP | Place of Origin | CHINA |
| High Light | SA335 finned pipe ，P9 finned pipe ，Steam Boiler heat exchanger finned tubes | ||
ASTM A335 P9 Base Tube
| Grade | UNS Designation | C | Mn | P | S | Si | Cr | Mo | Other |
| P9 | K90941 | 0.15 | 0.30–0.60 | 0.025 | 0.025 | 0.25-1.0 | 8.0-10.0 | 0.9-1.1 | . . . |
A335 P9 Solid Fin Tube FAQ
1. What is SA335 P9 Solid Fin Tube?
2. What are the key properties of SA335 P9?
3. Where are SA335 P9 fin tubes commonly used?
4. Why choose solid fins over helical/embedded fins?
5. What are the ASTM/ASME standards for SA335 P9 fin tubes?
6. How are SA335 P9 fin tubes manufactured?
7. What are the temperature & pressure limits?
8. How does SA335 P9 compare to P11, P22, or P91?
| Grade | Cr Content | Mo Content | Max Temp | Key Advantage |
| P9 | 9% | 1% | 600°C | Balanced cost/performance |
| P11 | 1.25% | 0.50% | 550°C | Better weldability |
| P22 | 2.25% | 1% | 575°C | Common in refineries |
| P91 | 9% | 1% + V,Nb | 650°C | Superior creep strength |
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. The factories ... 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. The factories ...
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