YUHONG HOLDING GROUP CO., LTD
| Payment Terms | L/C, T/T |
| Supply Ability | 1000 tons/month |
| Delivery Time | 70-90 days |
| Packaging Details | Ply-wooden Case With Iron Frame |
| Product | Fin Tubes or Finned Tube |
| Type | Longitudinal Finned Tubes |
| Base Tubes Standard | ASTM A312 |
| Material | TP316L Base pipes and Stainless Steel Fins |
| Length | According to clients' need |
| Size and details | According to clients' need |
| Use | Heat Exchanger / Boiler / Furnaces / Condensers / Evaporators, etc |
| Packing | Ply-wooden Case With Iron Frame |
| Brand Name | YUHONG |
| Model Number | ASTM A312 TP316L |
| Certification | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2015 |
| Place of Origin | CHINA |
View Detail Information
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Product Specification
| Payment Terms | L/C, T/T | Supply Ability | 1000 tons/month |
| Delivery Time | 70-90 days | Packaging Details | Ply-wooden Case With Iron Frame |
| Product | Fin Tubes or Finned Tube | Type | Longitudinal Finned Tubes |
| Base Tubes Standard | ASTM A312 | Material | TP316L Base pipes and Stainless Steel Fins |
| Length | According to clients' need | Size and details | According to clients' need |
| Use | Heat Exchanger / Boiler / Furnaces / Condensers / Evaporators, etc | Packing | Ply-wooden Case With Iron Frame |
| Brand Name | YUHONG | Model Number | ASTM A312 TP316L |
| Certification | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2015 | Place of Origin | CHINA |
| High Light | Stainless Steel Longitudinal Finned Tubes ，ASTM A312 Longitudinal Finned Tubes ，Welded Longitudinal Finned Tubes | ||
Longitudinal Finned Tubes ASTM A312 TP316L Welded Tubes With Stainless Steel Fins
Detailes of ASTM A312 Base Tubes
ASTM A312 This specification covers seamless, straight-seam welded, and heavily cold worked welded austenitic stainless steel pipe intended for high-temperature and general corrosive service.
Manufacture: Welded (WLD) pipe shall be made using an automatic welding process with no addition of filler metal during the welding process.
Heat treatment: All pipe shall be furnished in the heat-treated condition in accordance with the requirements 1900°F [1040°C] .
Surface Condition: The pipe shall be free of scale and contaminating exogenous iron particles. Pickling, blasting, or surface finishing is not mandatory when pipe is bright annealed. The purchaser is permitted to require that a passivating treatment be applied to the finished pipe
Tests: Transverse or Longitudinal Tension Test, Flattening Test, Grain Size, Flaring Test, Flange Test, Hardness Test, Hydrostatic Test or Nondestructive Electric Test
Chemical Composition (%)
| Grade | C | Mn | P | S | Si | Cr | Ni | Mo |
| TP316L S31603 | 0.035 | 2.00 | 0.045 | 0.030 | 1.00 | 16.0-18.0 | 10.0-14.0 | 2.00-3.00 |
For small diameter or thin walls or both, where many drawing passes are required, a carbon maximum of 0.040% is necessary in grades TP304L and TP316L. Small outside diameter tubes are defined as those less than 0.500 in. [12.7 mm] in outside diameter and light wall tubes as those less than 0.049 in. [1.20 mm] in average wall thickness (0.044 in. [1.10 mm] in minimum wall thickness).
Mechanical Properties
| Grade | Tensile Strength,min | Yield Strength (0.2%Offset,min) | Elongation min. |
| TP316L | 70ksi (485 MPa) | 25ksi (170 MPa) | 35% |
Definition
Longitudinal finned tubes are produced by resistance welding fins along the long direction of the tube. The fins first form a U-shaped channel so that each leg of the U-shape forms a fin.
Regular base pipe/tube material: carbon / alloy steel (A106, A333, A179, A335 P5, P22, P9, etc.)
stainless steel TP304, TP316L,TP321, etc.
copper alloy CuNi 70/30, CuNi 90/10, etc and other material.
Advantages
1.Reduce the installation space of the required heat transfer surface and at the same time, it has high reliability;
2.Improve the heat transfer efficiency in the effective space;
3.Heat transfer is strengthened to reduce flow resistance and metal consumption,etc.
Application
Generally applicable to power stations or large high-temperature old equipment in the oil industry:
Industrial Furnace
Distillation Tower System
Air Cooled Heat Exchanger
Refining Unit
Petrochemical Separation Equipment
Evaporative Condenser
Closed Circuit Cooling Tower
Waste Heat Boiler
High Temperature Furnace Cooling System
Nuclear Power Plant Heat Exchange System,etc
Specifications For Various Types Of Finned Tubes
| Type | Description | Base tube | Fin specification (mm) | ||
| O.D. (mm) | Fin pitch | Fin height | Fin thick | ||
| Embedded | G-type fin tube | 16-63 | 2.1~5 | <17 | ~0.4 |
| Extruded | Single metal / Combined metal | 8-51 | 1.6~10 | <17 | 0.2-0.4 |
| Low fin tube / T-type fin tube | 10-38 | 0.6~2 | <1.6 | ~0.3 | |
| Bamboo tube / corrugated tube | 16-51 | 8.0~30 | <2.5 | ~0.3 | |
| Wound | L / KL / LL type fin tube | 16-63 | 2.1~5 | <17 | ~0.4 |
| String | String fin tube | 25-38 | 2.1-3.5 | <20 | 0.2-0.5 |
| U-type | U-type fin tube | 16-38 | / | / | / |
| Welding | HF-welding fin tube | 16-219 | 3~25 | 5~30 | 0.8-3 |
| H/HH type fin tube | 25-63 | 8~30 | <200 | 1.5-3.5 | |
| Studed fin tube | 25-219 | 8~30 | 5~35 | φ5-20 | |
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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