C68700 Aluminum Brass Tube PDF
Products Description
ASTM B111 C68700 Aluminum Brass tube
C68700 has especially good corrosion resistance properties in sea water. both C44300 & C68700 have good corrosion resistance. C68700 annealed in O61 Temper. Tensile strength minimum in 345Mpa, Yield Strength minimum in 125Mpa.
Aluminum brass C68700, also known as aluminum bronze C68700, is a specific type of aluminum brass alloy with distinctive properties and applications
C68700 density in 8.33g/cm3, 0.301lb/in.3
Typical Application of C68700 Aluminum Brass
Condenser Tube, Evaporator Tubes, Ferrules, Distiller Tubes, Heat Exchanger Tubes
C68700 aluminium brass tubes are widely used in "Seawater desalting plants"
ASTM B111 C68700 Chemical Composition
| Element | Weight % |
| Cu | 76.0-79.0 |
| Zn | Reminder |
| Al | 1.8-2.5 |
| As | 0.02-0.06 |
| Pb | 0.07 |
| Fe | 0.06 max |
ASTM B111 C68700 Aluminium Brass Tubes Mechanical Properties
| Coefficient of Thermal Expansion | 10.3 10−6Per °F (68-572 F) |
| Density | 0.301 lb/in3 at 68 F |
| Electrical Conductivity | 23 %IACS @ 68 F |
| Electrical Resistivity | 45.1 ohms-cmil/ft @ 68 F |
| Melting Point Liquid US | 1780 F |
| Melting Point Solid US | 1710 F |
| Modulas of Elasticity in Tension | 16000 ksi |
| Modulas of Rigidity | 6000 ksi |
| Specific Gravity | 8.33 |
| Specific Heat Capacity | 0.09 Btu/lb/°F @ 68 F |
| Thermal Conductivity | 58.0 BTU in/hr.ft2.°F @ 68 F |
Application
Heat Exchangers
Desalination Plants
Power Generation
Shipbuilding
Oil and Gas Industry
HVAC Systems
Water Treatment
Automotive Industry
FAQ
Can C68700 be welded?
A: Yes, C68700 can be welded using appropriate techniques for copper alloys, such as Gas Tungsten Arc Welding (GTAW/TIG).
Q: What is the maximum operating temperature for C68700?
A: While specific limits depend on the environment, C68700 is generally suitable for continuous service at temperatures encountered in typical condenser and heat exchanger applications.
Q: Is C68700 susceptible to stress corrosion cracking (SCC)?
A: Like most brass alloys, C68700 can be susceptible to SCC in the presence of ammonia and stress. Proper stress-relieving treatments after bending or expanding are recommended.
Q: What is the typical tensile strength of C68700?
A: In the annealed condition, C68700 typically has a tensile strength of around 380 MPa (55,000 psi).
Q: What is the thermal conductivity of C68700?
A: The thermal conductivity of C68700 is approximately 58 W/m·K, which is lower than pure copper but sufficient for heat transfer applications.
Our inventory is in stock
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about us
Our Product Portfolio
We supply an extensive inventory of copper products in various forms, grades, and tempers to meet your exact specifications.
1. Copper & Copper Alloy Tubes/Pipes
Type: Copper Seamless Tube, Copper Welded Tube, Capillary Tube, Refrigeration Tube, Heat Exchanger Tube, Condenser Tube, Dehydrated Tube.
Key Alloys: C10200 (OFHC Copper), C11000 (ETP Copper), C12200 (DHP Copper), C44300, C68700, C70600 (Copper Nickel 90/10), C71500 (Copper Nickel 70/30).
2. Copper & Copper Alloy Sheets/Plates
Type: Copper Sheet, Copper Plate, Copper Foil, Copper Thin Sheet, Copper Thick Plate, Embossed Sheet, Perforated Sheet.
Key Alloys: C10200, C11000, C17200 (Beryllium Copper), C26000 (Cartridge Brass), C26800, C28000 (Muntz Metal).
3. Copper & Copper Alloy Bars/Rods
Type: Copper Round Bar, Copper Square Bar, Copper Hexagonal Bar, Copper Flat Bar, Copper Wire Rod.
Key Alloys: C10100, C11000, C36000 (Free-Cutting Brass), C38500 (Architectural Bronze).
4. Copper & Copper Alloy Strips/Wires
Type: Copper Strip, Copper Coil, Copper Flat Wire, Copper Bare Wire, Copper Braided Wire, Copper Tin-Plated Wire.
Key Alloys: C11000, C26000 (Brass Strip), C51900 (Phosphor Bronze), C52100, C70400.
Quality & Standards
We guarantee that all our products comply with international and national standards, ensuring performance, reliability, and safety.
International Standards: ASTM, EN, DIN, JIS, ISO.
Common Standards: ASTM B111,ASTM B68, B75, B88, B96, B152, B187, B465.
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