ASTM B111 C68700 Seamless Copper Alloy Tube for Heat Exchanger Condenser Applications
Price:
NEGOTIABLE
MOQ:
100 KGS
Delivery Time:
20-80 days
Brand:
YUHONG
Product Description
ASTM B111 C68700 Copper Round Seamless Tube for Heat Exchanger Condenser
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 worldwide, and Yuhong products have earned unanimous praise from customers.
C68700 (C687) copper-nickel alloy offers excellent corrosion resistance, particularly in marine salt water environments. The main wrought copper-nickel alloys for seawater service contain 10% or 30% nickel. These alloys include important additions of iron and manganese, which are essential for optimal corrosion resistance. Common applications for C706 include copper-nickel fittings, condenser housings, and heat exchanger components.
As a leading pipeline products supplier in China, YUHONG GROUP provides a comprehensive range of C68700 tubes in various specifications including ASTM B111. This specification establishes requirements for ferrule stock and seamless tubes of copper alloys across specified diameter ranges.
Material Properties
UNS C68700 demonstrates exceptional corrosion resistance in seawater environments. Both C44300 and C68700 pipes offer superior corrosion protection. C68700 is supplied in O61 temper (annealed) condition with minimum tensile strength of 345 MPa and minimum yield strength of 125 MPa.
C68700 Tube Density: 8.33 g/cm³ (0.301 lb/in³)
Typical Applications for C68700 Aluminum Brass "Arsenic"
- Industrial: condenser tubes, evaporator tubes, ferrules, distiller tubes, heat exchanger tubes
- Seawater desalination plants
International Standards
| 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 Composition (%)
| UNS No. | Copper | Tin | Al | Nickel | Lead | Iron | Zinc | Mn. | Arsenic |
|---|---|---|---|---|---|---|---|---|---|
| C68700 | 76.0-79.0 | - | 1.8-2.5 | - | 0.07 max | 0.06 max | remainder | 0.02-0.10 | - |
Mechanical Properties
| UNS No. | Temper | Annealing Temp (°C) | Tensile Strength (min) | Yield Strength (min) | HV |
|---|---|---|---|---|---|
| C68700 | O61 (Annealed) | above 650 | 345 MPa | 125 MPa | 150 |
Copper Alloy Descriptions
| 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 tubes are extensively used in surface condensers, heat exchangers, and evaporators. They provide high strength, excellent corrosion resistance, and superior creep resistance at elevated temperatures.
Material Testing
- Mechanical Testing (Tensile of Area)
- Hardness Test
- Chemical Analysis - Spectro Analysis
- Positive Material Identification - PMI Testing
- Flattening Test
- Micro and Macro Test
- Pitting Resistance Test
- Flaring Test
- Intergranular Corrosion (IGC) Test
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Company
Yuhong Group Co.,Ltd
Location
20TH FLOOR,NO.1 NEW WORLD BUILDING ,NO.1018 MINAN ROAD,YINZHOU DISTRICT, NINGBO CITY, ZHEJIANG PROVINCE, CHINA
Contact Person
Jikin Cai