| Standard: | ASME SB111 | Material Grade: | UNS C68700 |
|---|---|---|---|
| Type: | Seamless | Outside Diameter: | 2mm~914mm |
| Wall Thickness: | 0.2mm~120mm | Shape: | Round |
| High Light: | C68700 Aluminum Copper Alloy Tube， Brass Steel Seamless Condenser Tube， ASME SB111 Seamless Condenser Tube | ||
ASME SB111 C68700 Aluminum Brass Steel Tube for Marine and Land Power Station
Continuous B111 grade C68700 Aluminum Brass Pipe is robust and corrosion-resistant. In industries such as air conditioning units， heat exchanger tube， freezers， the petrochemical sector， power plants， etc.， ASTM B111 C68700 Tube is frequently used.Condenser pipes frequently employ the material C68700 because it withstands the effects of salt water and black water moving at incredible velocities. The significant resistance of C68700 to compressive damage is its primary feature.
For usage in marine and terrestrial power stations with significant cooling water velocity， pipes made of this alloy are advised. In “Seawater desalting plants，” C68700 aluminum brass pipes are frequently utilized. The UNS C68700 tube is thin， has excellent heat conductivity， and has a significant of low-temperature strength.
Equivalent Material:
| Material | Corresponding Material Symbol | ||||
| GB/T 8890 | BS 2871 | DIN 1785 | ASTM B111 | JIS H3300 | |
| Aluminum Brass | HAL 77-2 | CZ110 | CuZn20Al2 | C68700 | C6870 |
Chemical Composition:
| Elements | Composition， % |
| Cu， incl. Ag | 76.0-79.0 |
| Al | 1.8-2.5 |
| Pb | 0.07 max |
| Fe | 0.06 max |
| Zn | Balance |
| Mn | 0.02-0.06 |
Mechanical Properties:
| Standard Grade | C68700 |
| Temper Designation | O61 |
| annealed | |
| Yield Strength [N/mm2] | 18 min.(ksi) |
| 125 min.(mpa) | |
| Tensile Strength [N/mm2] | 50 min.(ksi) |
| 345 min.(mpa) |
Length Tolearance:
| Specified Length， mm | Tolerance，all plus， mm |
| Up to 4500 | 2.4 |
| Over 4500-6000，incl | 3.2 |
| Over 6000-10000，incl | 4.0 |
| Over 10000-18000，incl | 9.5 |
| Over 1800-30000，incl | 13.0 |
Application:
• Heat Exchangers: C68700 tubes are commonly used in heat exchangers due to their excellent thermal conductivity， making them suitable for applications where efficient heat transfer is crucial.
• Condensers: These tubes are also widely used in condenser units where reliable performance in heat exchange processes is required.
• Power Plants: In power generation facilities， C68700 tubes are utilized in condenser and heat exchanger systems to enhance the efficiency of heat transfer.
• HVAC Systems: The high corrosion resistance of C68700 tubes makes them ideal for use in HVAC systems where exposure to moisture and other corrosive elements is a concern.
• Marine Applications: Due to its resistance to seawater corrosion， C68700 tubes are commonly used in marine applications such as shipbuilding and offshore structures.
Mechanical Properties:
