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[China]
Trade Verify
Address: 20TH FLOOR,NO.1 NEW WORLD BUILDING ,NO.1018 MINAN ROAD,YINZHOU DISTRICT, NINGBO CITY, ZHEJIANG PROVINCE, CHINA
Contact name:Jikin Cai
Yuhong Group Co.,Ltd |
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Verified Suppliers
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We are one of the largest stainless steel, duplex and alloy steel pipe manufacturers in China. After more than 20 years of development, we have accumulated a large number of customers all over the world, and Yuhong products have also won unanimous praise from customers.
C68700 (C687), copper-nickel has excellent corrosion resistance, especially in marine salt water environments. The main wrought copper-nickel alloys for seawater service contain 10% or 30% nickel. They also have important additions of iron and manganese, which are necessary for good corrosion resistance. Some of the main uses for C706 include copper-nickel fittings and condenser and exchanger housings.
As one of the biggest projects pipeline products supplier in China, YUHONG GROUP can supply a wide range of C68700 tubes in different specifications like ASTM B111. This specification establishes the requirements for ferrule stock and a seamless tube of copper alloys of a specified range of diameters.
UNS C68700 has particularly good corrosion resistance in seawater.
C44300 and C68700 pipes have good corrosion resistance. C68700 is
annealed in O61 temper. The minimum tensile strength is 345Mpa, and
the minimum yield strength is 125Mpa.
C68700 Tube Density 8.33g/cm3, 0.301lb/in.3
Typical Applications for C68700 Aluminum Brass "Arsenic"
1. Industry: condenser tubes, evaporator tubes, ferrules, distiller
tubes, heat exchanger tubes
2. C68700 aluminum brass tube is widely used in "seawater
desalination plant"
| 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 |
| 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 | |
ASTM B111 C68700 Mechanical Properties
| Copper or Copper Alloy UNS No. | Temper Designation | Annealing temperature, °C | Tensile Strength, minYield Strength, min | Yield Strength, min | HV | |||
| Code | Surface | Ksi | Mpa | Ksi | Mpa | |||
| C68700 | O61 | Annealed | above 650 | 50 | 345 | 18 | 125 | 150 |
| Copper or Copper Alloy UNS NO. | Description |
| C44300 | Admiralty Metals, B, C, and D |
| C68700 | Aluminum Brass, B |
| C70600 | 90-10 Copper-Nickel |
| C71500 | 70-30 Copper-Nickel |
ASTM B111 C68700 tube is widely used in the surface condenser, heat exchanger, and evaporators. They offer high strength, excellent corrosion resistance, and good creep resistance at elevated temperatures.
Material Testing
