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| Brand Name: | YUHONG |
| Model Number: | ASTM B111 C71500 |
| MOQ: | Depend the size of finned tubes, 50-100PC |
| Price: | 30-10000 USD |
| Payment Terms: | L/C, T/T |
| Supply Ability: | 1000 tons/month |
| Attribute | Value |
|---|---|
| Product | Fin Tubes or Finned Tube |
| Type | Low Fin Tubes / Integral Fin Tubes |
| Standard | ASTM B111 |
| Material | C71500 Tube CuNi 70 / 30 |
| Use | For large equipment, Heat Exchanger / Boiler / Furnaces / Condensers / Evaporators, etc |
| Packing | Ply-wooden Case With Iron Frame |
Copper Nickel 70 / 30 Low Fin Tubes ASTM B111 C71500 For Condensers
ASTM B111 establishes requirements for seamless tube and ferrule stock of copper and various copper alloys up to 31 ⁄ 8 in. (80 mm), inclusive, in diameter, for use in surface condensers, evaporators, and heat exchangers.
| Grade | Cu | Ni, incl Co | Pb | Fe | Zn | Mn |
|---|---|---|---|---|---|---|
| C71500 | remainder | 29.0-33.0 | 0.05 | 0.4-1.0 | 1.00 | 1.00 |
| Grade | Standard | Tensile Strength,min | Yield Strength (0.2%Offset,min) |
|---|---|---|---|
| C71500 | O61 | 52ksi | 18ksi |
| HR50 | 72ksi | 50ksi |
Low fin tubes are specialized heat exchanger tubes designed to enhance heat transfer by increasing the surface area. They feature small, closely spaced fins on their outer surface, which are typically shorter and have a height of about 0.125 to 0.25 inches. The Low Fin Tubes/Integral Fin Tubes are increasingly being used in various fluid heat exchangers, such as in coolers, condensers, and chillers. They are specialized heat exchangers designed to enhance heat transfer efficiency while maintaining a compact structure.
Material: Typically constructed from materials such as carbon steel, stainless steel, alloy or copper, providing durability and resistance to corrosion.
| Type | Description | Base tube 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 | 8-30 | <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 | |
| Serrated spiral fin tube | 25-219 | 2-7 | <38.1 | 0.9-2.0 | |
| Studed fin tube | 25-219 | 8-30 | 5-35 | φ5-20 |
