C68700 Aluminum Brass Tube PDF
Products Description
C68700 aluminum brass is a copper-zinc alloy with added aluminum and corrosion inhibitors, giving it excellent resistance to high-velocity seawater and brackish water corrosion. This alloy is renowned for its strength and durability and is specifically designed to withstand shock and erosion corrosion in harsh cooling environments.
Corrosion-inhibited aluminum brass tubing (C68700) is widely used in condenser systems, particularly in marine, power generation, and desalination industries, where water flow rates and salinity levels pose significant challenges to the long-term performance of standard copper alloys.
Chemical Composition
| Elements | ||||||
|---|---|---|---|---|---|---|
| Cu(1,2) | Pb | Zn | Fe | Al | As | |
| (1) Cu value includes Ag. (2) Cu + Sum of Named Elements 99.5% min. |
||||||
| Min (%) | 76.0 | 1.8 | 0.02 | |||
| Max (%) | 79.0 | 0.07 | Rem | 0.06 | 2.5 | 0.06 |




Physical Properties
| Melting Point - Liquidus°F | 1780 |
|---|---|
| Melting Point - Solidus°F | 1710 |
| Densitylb/cu in. at 68°F | 0.301 |
| Specific Gravity | 8.33 |
| Electrical Conductivity% IACS at 68°F | 23 |
| Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F | 58 |
| Coefficient of Thermal Expansion 68-57210 to -6 power per °F (68 – 572°F) | 10.3 |
| Specific Heat CapacityBtu/ lb /°F at 68°F | 0.09 |
| Modulus of Elasticity in Tensionksi | 16000 |
| Modulus of Rigidityksi | 6000 |
Fabrication Properties
| Technique | Suitability |
|---|---|
| Soldering | Fair |
| Brazing | Good |
| Oxyacetylene Welding | Fair |
| Gas Shielded Arc Welding | Fair |
| Coated Metal Arc Welding | Not Recommended |
| Spot Weld | Good |
| Seam Weld | Fair |
| Butt Weld | Good |
| Capacity for Being Cold Worked | Excellent |
| Capacity for Being Hot Formed | Fair |
| Machinability Rating | 30 |
We can supply tubes in Copper and Copper Alloys for many applications
Seamless tubes for heat exchanger and condensers
Seamless copper tubes for water and gas in sanitary and heating applications
Seamless copper tubes for air conditioning and refrigeration
Seamless round tubes for general purpose
Our inventory is in stock
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C68700 copper tube |
C68700 condenser tube |
C68700 brass pipe supplier |
|
C68700 brass tube |
Copper alloy C68700 tube |
ASTM B111 C68700 |
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Aluminum brass C68700 tube |
C68700 heat exchanger tube |
C68700 welded tube |
|
C68700 seamless tube |
UNS C68700 tube |
C68700 brass hollow bar |
|
Arsenical aluminum brass tube C68700 |
C68700 copper pipe |
C68700 drawn tube |
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.
Why Choose Us?
One-Stop Shop: A comprehensive range of copper products simplifies your sourcing.
Quality Assured: Rigorous inspection and material traceability.
Global Logistics: Efficient and reliable shipping to destinations worldwide.
Technical Support: Expert assistance with material selection and specification.






