Yuhong Group Co.,Ltd
| Payment Terms | L/C,T/T |
| Delivery Time | 7 DAYS |
| Packaging Details | Ply-wooden Case /Iron Case/ Bundle with plastic Cap |
| Product Name | Aluminum Brass Tube |
| Standard | ASTM B111 / ASME SB111 |
| Material | UNS C68700 (CW702R) |
| Size | can custom |
| Type | Seamless |
| Shape | U bend tube |
| Finish | Cold Drawn |
| Application | condenser, heat-exchanger, boiler, air cooler, etc. |
| Brand Name | YUHONG |
| Model Number | ASTM B111 UNS C68700 Aluminum Brass Tube |
| Certification | ABS, BV, DNV-GL , PED, TUV, LR, KR, NK, CCS. |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | L/C,T/T | Delivery Time | 7 DAYS |
| Packaging Details | Ply-wooden Case /Iron Case/ Bundle with plastic Cap | Product Name | Aluminum Brass Tube |
| Standard | ASTM B111 / ASME SB111 | Material | UNS C68700 (CW702R) |
| Size | can custom | Type | Seamless |
| Shape | U bend tube | Finish | Cold Drawn |
| Application | condenser, heat-exchanger, boiler, air cooler, etc. | Brand Name | YUHONG |
| Model Number | ASTM B111 UNS C68700 Aluminum Brass Tube | Certification | ABS, BV, DNV-GL , PED, TUV, LR, KR, NK, CCS. |
| Place of Origin | CHINA | ||
| High Light | c68700 u bend tube ，asme b111 u bend tube ，uns cda101 u bend tube | ||
ASTM B111 C68700 Aluminum Brass Seamless U Bend Tube for cooling and heating
ASTM B111 C68700 is a specification for seamless copper alloy U bend tubes, specifically made from aluminum brass. These tubes are commonly used in heat exchangers and condensers due to their excellent corrosion resistance, high thermal conductivity, and good strength. The U bend shape allows for easy installation and routing of the tubes in heat exchange systems.
ASTM B111 UNS C68700 Aluminum Brass Tube are a popular choice for heat exchangers due to several reasons:
Corrosion resistance: The tubes have excellent corrosion resistance properties, which make them suitable for use in marine environments and other corrosive applications.
Thermal conductivity: C68700 tubes have high thermal conductivity, which allows for efficient heat transfer.
Formability: These tubes are easily formed into U bend shapes, which makes them easy to install and route in heat exchange systems.
Strength: C68700 tubes have good strength properties, which make them suitable for use in high-pressure applications.
Cost-effective: These tubes are cost-effective compared to other materials such as stainless steel or titanium, making them a popular choice for heat exchanger applications.
Specification
| Standard Grade | ASTM B111 C68700 | EN 12451 CuZn20Al2As | DIN 17660/1785 CuZn20Al2 | BS 2871 CZ 110 | JIS H3300 C6870 | GB/T 8890 HAL 77-2 |
| Cu | 76.0-79.0 | 76.0-79.0 | 76.0-79.0 | 76.0-78.0 | 76.0-79.0 | 76.0-79.0 |
| Al | 1.8-2.5 | 1.8-2.3 | 1.8-2.3 | 1.8-2.3 | 1.8-2.5 | 1.8-2.5 |
| Fe | 0.06 max | 0.07 max | 0.07 max | 0.06 max | 0.06 max | 0.06 max |
| Pb | 0.07 max | 0.05 max | 0.07 max | 0.07 max | 0.07 max | 0.03 max |
| Zn | Bal. | Bal. | Bal. | Bal. | Bal. | Bal. |
| As | 0.02-0.10 | 0.02-0.06 | 0.02-0.035 | 0.02-0.06 | 0.02-0.06 | 0.03-0.06 |
| P | - | 0.01 max | 0.01 max | - | - | 0.02 max |
| Mn | - | 0.1 max | 0.1 max | - | - | - |
| Total Impurities | - | 0.3 max | 0.1 max | 0.3 max | - | 0.3 max |
| Condition | O61 | R390 | F39 | M | O | M |
| - | R340 | F34 | TA | - | Y2 | |
| - | - | - | O | - | - | |
| Yield Strength N/mm2 | 125 min | 150 min | 150-230 | - | - | - |
| - | 120 min | 120-180 | - | - | - | |
| - | - | - | - | - | - | |
| Tensile trength N/mm2 | 345 min. | 390 min | - | - | 373 min | 370min |
| - | 340 min | - | - | - | 350 min | |
| - | - | - | - | - | - | |
| Elongation (%) | - | 45 min | 45 min | - | 40 min | 40 min |
| - | 55 min | 55 min | - | - | 50 min | |
| - | - | - | - | - | - | |
| Hardness Hv5 | - | - | - | 150 min | - | - |
| - | - | - | 85-110 | - | - | |
| - | - | - | 75 max | - | - |
Copper Alloys Chemical requirements
| Copper or copper alloy UNS No. | Copper | TIN | Al | Ni incl Co | Pb max | Fe max | Zn max | Mn max | As | Sb | P max | Cr | Other |
| C44300 | 70.0-73.0 | 0.9-1.2 | 0.07 | 0.06 | remainder | 0.02-0.06 | |||||||
| C44400 | 70.0-73.0 | 0.9-1.2 | 0.07 | 0.06 | remainder | 0.02-0.10 | |||||||
| C44500 | 70.0-73.0 | 0.9-1.2 | 0.07 | 0.06 | remainder | 0.02-0.10 | |||||||
| C60800 | remainder | 5.0-6.5 | 0.1 | 0.1 | 0.02-0.35 | ||||||||
| C61300 | remainder | 0.20-0.50 | 6.0-7.5 | 0.15 max | 0.01 | 2.0-3.0 | 0.1 | 0.2 | 0.015 | ||||
| C61400 | remainder | 6.0-8.0 | 0.01 | 1.5-3.5 | 0.2 | 1 | 0.015 | ||||||
| C68700 | 76.0-79.0 | 1.8-2.5 | 0.07 | 0.06 | remainder | 0.02-0.06 | |||||||
| C70400 | remainder | 4.8-6.2 | 0.05 | 1.3-1.7 | 1 | 0.30-0.80 | |||||||
| C70600 | remainder | 9.0-11.0 | 0.05 | 1.0-1.8 | 1 | 1 | |||||||
| C70620 | 86.5 min | 9.0-11.0 | 0.02 | 1.0-1.8 | 0.5 | 1 | 0.02 | C.05 max S.02 max | |||||
| C71000 | remainder | 19.0-23.0 | 0.05 | 0.50-1.0 | 1 | 1 | |||||||
| C71500 | remainder | 29.0-33.0 | 0.05 | 0.4-1.0 | 1 | 1 | |||||||
| C71520 | 65.0 min | 29.0-33.0 | 0.02 | 0.4-1.0 | 0.5 | 1 | 0.02 | C.05 max S.02 max | |||||
| C71640 | remainder | 29.0-32.0 | 0.05 | 1.7-2.3 | 1 | 1.5-2.5 | C.06 max S.03 max | ||||||
| C72200 | remainder | 15.0-18.0 | 0.05 | 0.50-1.0 | 1 | 1 | 0.30-0.70 | Si.03 max Ti.03 max |
ASTM B111 UNS C68700 Aluminum Brass Products Mechanical Properties
| Form | Temper | Temper Code | Tensile Strength (ksi) | YS-0.5% Ext (ksi) | Elongation (%) | Rockwell B scale | Rockwell F scale | Section Size (in) | Cold Work (%) |
| Flat Products | As Hot Rolled | M20 | 55 Typ | 20 Typ | 45 Typ | 35 Typ | - | 1 | |
| Rod | 1/2 Hard | H02 | 75 Typ | 70 Typ | 15 Typ | 80 Typ | - | 1 | 20 |
| Tube | Nominal Grain Size 0.025 mm | OS025 | 60 Typ | 25 Typ | 45 Typ | 45 Typ | 80 Typ | - | - |
| Nominal Grain Size 0.035 mm | OS035 | 54 Typ | - | 45 Typ | 36 Typ | 77 Typ | - | - |
Applications
Heat exchangers: These tubes are used in heat exchangers for transferring heat from one fluid to another.
Condensers: The excellent corrosion resistance and high thermal conductivity of these tubes make them suitable for use in condensers.
Power plants: These tubes find their application in power plants for cooling systems.
Marine industry: The tubes are used in seawater piping systems due to their excellent resistance to corrosion.
HVAC systems: ASTM B111 UNS C68700 Aluminum Brass U Bend Tubes are used in heating, ventilation, and air conditioning (HVAC) systems for their thermal conductivity properties.
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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