Yuhong Group Co.,Ltd
| Fin Pitch | 2.5mm-20mm |
| Fin Height | 0.5mm-20mm |
| Tube Length | 50mm-6000mm |
| Tube Wall Thickness | 0.5mm-20mm |
| Tube Diameter | 6mm-219mm |
| Payment Terms | L/C,T/T |
| Supply Ability | According To Client's Request |
| Delivery Time | 10-90 Days |
| Packaging Details | Ply-wooden Case /Iron Case/ Bundle with plastic Cap |
| Fin Thickness | 0.08mm-1.5mm |
| Brand Name | YUHONG |
| Model Number | ASTM A355 P9 |
| Certification | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2015 |
| Place of Origin | China |
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Product Specification
| Fin Pitch | 2.5mm-20mm | Fin Height | 0.5mm-20mm |
| Tube Length | 50mm-6000mm | Tube Wall Thickness | 0.5mm-20mm |
| Tube Diameter | 6mm-219mm | Payment Terms | L/C,T/T |
| Supply Ability | According To Client's Request | Delivery Time | 10-90 Days |
| Packaging Details | Ply-wooden Case /Iron Case/ Bundle with plastic Cap | Fin Thickness | 0.08mm-1.5mm |
| Brand Name | YUHONG | Model Number | ASTM A355 P9 |
| Certification | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2015 | Place of Origin | China |
| High Light | ASTM A355 P9 fin tube ，11CR serrated fin tube ，high-performance serrated fin tube | ||
ASTM A355 is a standard specification for seamless ferritic alloy-steel pipe for high-temperature service. P9 refers to the grade of steel used in the pipe, which is a low alloy steel with chromium and molybdenum content.
11CR refers to the 11% chromium content in the steel, which provides enhanced corrosion resistance and high-temperature strength.
Serrated fin tube refers to a type of heat exchanger tube that has fins on the outer surface. These fins increase the surface area of the tube, allowing for more efficient heat transfer between the fluid inside the tube and the surrounding environment. The serrated design of the fins helps to improve heat transfer even further.
| P5, P9, P11, and P22 | ||||
| Grade | Heat Treatment Type | Normalizing Temperature Range F [C] | Subcritical Annealing | |
| or Tempering | ||||
| Temperature Range F | ||||
| [C] | ||||
| P5 (b,c) | Full or isothermal Anneal | |||
| Normalize and Temper | ***** | 1250 [675] | ||
| Subcritical Anneal (P5c only) | ***** | 1325 - 1375 [715 - 745] | ||
| P9 | Full or isothermal Anneal | |||
| Normalize and Temper | ***** | 1250 [675] | ||
| P11 | Full or isothermal Anneal | |||
| Normalize and Temper | ***** | 1200 [650] | ||
| P22 | Full or isothermal Anneal | |||
| Normalize and Temper | ***** | 1250 [675] | ||
| P91 | Normalize and Temper | 1900-1975 [1040 - 1080] | 1350-1470 [730 - 800] | |
| Quench and Temper | 1900-1975 [1040 - 1080] | 1350-1470 [730 - 800] | ||
| Grade | P-5 | P-9 | P-11 | P-22 | ||
| Element | UNS Designation | K41545 | S50400 | K11597 | K21590 | |
| Carbon | 0.15 max | 0.15 max | 0.05 - 0.15 | 0.05 - 0.15 | ||
| Manganese | 0.30 - 0.60 | 0.30 - 0.60 | 0.30 - 0.60 | 0.30 - 0.60 | ||
| Phosphorous, max | 0.025 | 0.025 | 0.025 | 0.025 | ||
| Sulfur, max | 0.025 | 0.025 | 0.025 | 0.025 | ||
| Silicon | 0.50 max | 0.25 - 1.00 | 0.50 - 1.00 | 0.50 max | ||
| Chromium | 4.00 - 6.00 | 8.00 - 10.00 | 1.00 - 1.50 | 1.90 - 2.60 | ||
| Molybdenum | 0.45 -0.65 | 0.90 - 1.10 | 0.44 - 0.65 | 0.87 - 1.13 | ||
ASTM A355 is a standard specification for seamless ferritic alloy-steel pipe for high-temperature service. P9 refers to the grade of steel used in the pipe, which is a low alloy steel with chromium and molybdenum content.
11CR refers to the 11% chromium content in the steel, which provides enhanced corrosion resistance and high-temperature strength.
Serrated fin tube refers to a type of heat exchanger tube that has fins on the outer surface. These fins increase the surface area of the tube, allowing for more efficient heat transfer between the fluid inside the tube and the surrounding environment. The serrated design of the fins helps to improve heat transfer even further.
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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