YUHONG HOLDING GROUP CO., LTD
| Payment Terms | L/C,T/T |
| Delivery Time | 7days |
| Packaging Details | Ply-wooden Case /Iron Case/ Bundle with plastic Cap |
| Production Name | U Bend Heat Exchanger Tube |
| Standard | ASTM B111, ASME SB111 |
| Material | UNS C68700 / CuZn20Al2 / 2.0460 |
| OD | 1/4" , 3/8", 1/2", 5/8", 3/4", 1", 1.1/4", etc. |
| WT | BWG 25, 22, 20, 18 ... 10 |
| Radius | Can Custom |
| Length | Single Random, Double Random & Cut Length |
| Process | Cold Drawn |
| Application | Boiler, Heat Exchanger, Oil and Gas Plant, Cooling, Condenser |
| High Light | ASTM B111 UNS C68700 Aluminum Brass Tube, CuZn20Al2 U Bend Heat Exchanger Tubee |
| Brand Name | YUHONG |
| Model Number | ASTM B111 UNS C68700 Aluminum Brass U Bend Tube |
| Certification | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008 |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | L/C,T/T | Delivery Time | 7days |
| Packaging Details | Ply-wooden Case /Iron Case/ Bundle with plastic Cap | Production Name | U Bend Heat Exchanger Tube |
| Standard | ASTM B111, ASME SB111 | Material | UNS C68700 / CuZn20Al2 / 2.0460 |
| OD | 1/4" , 3/8", 1/2", 5/8", 3/4", 1", 1.1/4", etc. | WT | BWG 25, 22, 20, 18 ... 10 |
| Radius | Can Custom | Length | Single Random, Double Random & Cut Length |
| Process | Cold Drawn | Application | Boiler, Heat Exchanger, Oil and Gas Plant, Cooling, Condenser |
| High Light | ASTM B111 UNS C68700 Aluminum Brass Tube, CuZn20Al2 U Bend Heat Exchanger Tubee | Brand Name | YUHONG |
| Model Number | ASTM B111 UNS C68700 Aluminum Brass U Bend Tube | Certification | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008 |
| Place of Origin | CHINA | ||
| High Light | ASTM B111 aluminum brass tube ，UNS C68700 heat exchanger tube ，CuZn20Al2 U bend tube | ||
ASTM B111 UNS C68700 / CuZn20Al2 / 2.0460 Aluminum Brass U Bend Heat Exchanger Tube
YUHONG GROUP is specialized in supplying heat exchanger tubes, boiler tubes and condenser tubes in China. The available materials we can offer including carbon steel, stainless steel, duplex steel, alloy steel, copper, nickel alloys, which can satisfy your different project rquirements. ASTM B111 C68700 / CuZn20Al2 / 2.0460 is a medium-cost, seawater-resistant aluminum brass ideal for U-bundle heat exchangers. Its key strength is resistance to impingement attack and dezincification due to aluminum and arsenic. Use it for clean to moderately polluted seawater or brackish water at velocities up to 3 m/s. Ensure proper post-bend stress relief and NDT (ET) to guarantee U-bend integrity.
Equivalent Grades of ASTM B111 UNS C68700 Seamless Aluminum Brass U Bend Heat Exchanger Tube
| Material Designation | Corresponding Material Symbol | ||||
| GB/T8890 | ASTM B111 | BS2871 | JIS H3300 | DIN1785 | |
| Copper-Nickel | BFe10-1-1 | C70600 | CN102 | C7060 | CuNi10Fe1Mn |
| BFe30-1-1 | C71500 | CN107 | C7150 | CuNi30Mn1Fe | |
| (BFe30-2-2) | C71640 | CN108 | C7164 | CuNi30Fe2Mn2 | |
| (BFe5-1.5-0.5) | C70400 | – | – | – | |
| B7 | – | – | – | – | |
| Aluminums Brass | HAL77-2 | C68700 | CZ110 | C6870 | CuZn20Al2 |
| Admiralty Brass | HSn70-1 | C44300 | CZ111 | C4430 | CuZn28Sn1 |
| Boric Brass | Hsn70-18 | – | – | – | – |
| HSn70-1 AB | – | – | – | – | |
| Arsenical Brass | H68A | – | CZ126 | – | – |
| Brass Tube | H65/H63 | C28000/C27200 | CZ108 | C2800/C2700 | CuZn36/CuZn37 |
Chemical Composition of ASTM B111 UNS C68700 Seamless Aluminum Brass U Bend Heat Exchanger Tube
| Designation | Chemical Composition % | ||||||||
| Cu | Sn | Al | As | Ni | Fe | Mn | Pb max. | Zn | |
| C44300 | 70.0-73.0 | 0.9-1.2 | – | 0.02-0.06 | – | 0.06 max | – | 0.07 | Rem |
| C68700 | 76.0-79.0 | – | 1.8-2.5 | 0.02-0.06 | – | 0.06 max | – | 0.07 | Rem |
| C70400 | Rem | – | – | – | 4.8-6.2 | 1.3-1.7 | 0.3-0.8 | 0.05 | 1.0max |
| C70600 | Rem | – | – | – | 9.0-11.0 | 1.0-1.8 | 1.0max | 0.05 | 1.0max |
| C71500 | Rem | – | – | – | 29.0-33.0 | 0.4-1.0 | 1.0max | 0.05 | 1.0max |
| C71640 | Rem | – | – | – | 29.0-32.0 | 1.7-2.3 | 1.5-2.5 | 0.05 | 1.0max |
Tensile Requirements of ASTM B111 UNS C68700 Seamless Aluminum Brass U Bend Heat Exchanger Tube
| Copper or Copper Alloy UNS NO. | Temper Designation | Tensile Strength | Yield Strength | |
| Standard | Former | min ksi | min ksi | |
| C44300 | O61 | annealed | 45 | 15 |
| C68700 | O61 | annealed | 50 | 18 |
| C70400 | H55 | light-drawn | 38 | 30 |
| C70600 | H55 | light-drawn | 45 | 15 |
| C71500 | O61 | annealed | 52 | 18 |
| C71640 | O61 | annealed | 63 | 25 |
Application
Power Plants: Seawater-cooled condensers, auxiliary coolers, and moisture separator reheaters (MSR).
Desalination Plants: Multi-Stage Flash (MSF) and Multi-Effect Distillation (MED) evaporators (low-temperature stages).
Marine Engineering: Shipboard heat exchangers, coolers for diesel engines.
Chemical/Petrochemical: Heat exchangers with brackish or saline cooling water.
HVAC: Large seawater-cooled chillers.
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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