ASTM B111 UNS C68700 Aluminum Brass Tube CuZn20Al2 Heat Exchanger Tube
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Model Number:ASTM B111 UNS C68700 Aluminum Brass Tube
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Delivery Time:7days
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ASTM B111 UNS C68700 Aluminum Brass Tube Seamless Heat Exchanger Tube
C68700 is indeed classified as a type of brass, specifically an aluminum brass alloy. This alloy typically contains copper, aluminum, and other elements, including arsenic, which contributes to its properties. There are various common copper alloys such as C12000, C44300, C68700, C70600, C71500, C71640. People choose material determine whether the alloy will be exposed to corrosive environments (like seawater, chemicals, or humidity). Some alloys are better suited for marine or chemical applications. Evaluate the operating temperature range, some alloys perform better at higher or lower temperatures.
The Properties of ASTM B111 C68700 copper alloy tube
Corrosion Resistance: C68700 is known for its excellent resistance to corrosion in freshwater and moderately corrosive environments, making it suitable for various applications. The presence of aluminum and arsenic enhances its durability.
Strength and Durability: The alloy offers good mechanical strength and can withstand wear and tear, making it appropriate for demanding applications.
Ductility: C68700 is relatively ductile, allowing for easy shaping and forming, which is crucial in manufacturing processes.
Biofouling Resistance: Like other copper alloys, C68700 is less likely to support the growth of marine organisms, which is beneficial for marine applications.
| COUNTRY | STANDARD | NAME |
| ASTM | ASTM B111 | Copper and Copper-Alloy Seamless Condenser Tubes and Ferrule Stock |
| GB/T | GB/T8890 | Seamless Copper Alloy Heat Exchanger Tubes |
| BS | BS 2871 CZ110 | Copper and Copper Alloys Tubes |
| JIS | JIS H3300 | Copper and Copper Alloy-Seamless Pipes and Tubes |
| DIN | DIN1785 | Wrought Copper and Copper Alloy Tubes for Condensers and Heat Exchangers |
ASTM B111 C68700 Copper Alloy Mechanical Properties
| Copper or Copper Alloy | Temper Designation | Annealing temperature, °C | Tensile Strength, minYield Strength, min | Yield Strength, min | HV | |||
| UNS No. | Code | Surface | Ksi | Mpa | Ksi | Mpa | ||
| C68700 | O61 | Annealed | above 650 | 50 | 345 | 18 | 125 | 150 |
| Chemical Compositions% | |||||||||||||
UNS No. | CopperA | Tin | Al | Nickel, incl Cobalt | Lead, max | Iron | Zinc | Mn. | Arsenic | Antimony | Phosphorus | Chro | Others |
| C10200 | 99.95 min | - | - | - | - | - | - | - | - | - | - | - | - |
| C12000 | 99.90 min | - | - | - | - | - | - | - | - | - | 0.004-0.012 | - | - |
| C12200 | 99.9 min | - | - | - | - | - | - | - | - | - | 0.015-0.040 | - | - |
| C14200 | 99.40 min | - | - | - | - | - | - | - | 0.15-0.50 | - | 0.015-0.040 | - | - |
| C19200 | 98.7 min | - | - | - | - | 0.8-1.2 | - | - | 0.15-0.50 | - | 0.01-0.04 | - | - |
| C23000 | 84.0-86.0 | - | - | - | 0.05 | 0.05 max | remalnder | - | - | - | - | - | - |
| C28000 | 59.0-63.0 | - | - | - | 0.30 | 0.07 max | remainder | - | - | - | - | - | - |
| C44300 | 70.0-73.0 | 0.9-1.2 | - | - | 0.07 | 0.06 max | remainder | - | 0.02-0.06 | - | - | - | - |
| C44400 | 70.0-73.0 | 0.9-1.2 | - | - | 0.07 | 0.06 max | remainder | - | - | 0.02-0.10 | - | - | - |
| C44500 | 70.0-73.0 | 0.9-1.2 | - | - | 0.07 | 0.06 max | remainder | - | - | - | 0.02-0.10 | - | - |
| C60800 | remainder | - | 5.0-6.5 | - | 0.10 | 0.10 max | - | - | 0.02-0.35 | - | - | - | - |
| C68700 | 76.0-79.0 | - | 1.8-2.5 | - | 0.07 | 0.06 max | remainder | - | 0.02-0.10 | - | - | - | - |
| C70400 | remainder | - | 4.8-6.2 | 0.05 | 1.3-1.7 | 1.0max | 0.30-0.8 | - | - | - | - | - | |
| C70600 | remainder | - | 9.0-11.0 | 0.05B | 1.0-1.8 | 1.0maxB | 1.0max | - | - | B | - | B | |
| C71000 | remainder | - | 19.0-23.0 | 0.05B | 0.50-1.0 | 1.0maxB | 1.0max | - | - | B | - | B | |
| C71500 | remainder | - | 29.0-33.0 | 0.05B | 0.40-1.0 | 1.0maxB | 1.0max | - | - | B | - | B | |
| C71640 | remainder | - | 29.0-32.0 | 0.05B | 1.7-2.3 | 1.0maxB | 1.5-2.5 | - | - | B | - | B | |
| C72200 | remainder | - | 15.0-18.0 | 0.05B | 0.50-1.0 | 1.0maxB | 1.0max | - | - | B | 0.30 -0.70 | B | |
Application
Heat Exchangers
Marine Applications: Used in marine hardware, fittings, and fixtures due to its corrosion resistance and ability to withstand harsh conditions.
Plumbing and HVAC: C68700 is often utilized in plumbing fittings, valves, and HVAC components, where strength and corrosion resistance are needed.
Industrial Equipment: Employed in equipment and machinery where durability and resistance to chemical exposure are essential.
Architectural Features: Common in architectural applications where both aesthetic appeal and resistance to environmental degradation are desired.
Electrical Applications: While not as conductive as pure copper, its electrical conductivity is sufficient for certain electrical applications.
ASTM B111 UNS C68700 Aluminum Brass Tube CuZn20Al2 Heat Exchanger Tube
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