C68700 Aluminum Brass Tube PDF
Products Description
The ASTM B-111 C68700 Aluminium Brass and Copper Tube is a high-performance alloy tube made from a mix of copper, zinc, and aluminium. It has been proven by experience and tests in seawater or harsh environments that this tube possesses qualities that make it resistant. The aluminium content having corrosion resistance and provide excellent thermal conductivity and mechanical strengths due to copper and zinc.
These tubes are manufactured under an ASTM B111 standard, which means compliance with a very high range of quality and performance parameters. From heat exchangers to condensers and even marine applications, these tubes can withstand some of the toughest conditions with ease.
Chemical Composition
|
Element |
Standard Range (wt%) |
Typical (wt%) |
Function |
|
Cu |
76.0–79.0 |
77.5 |
Matrix, ensures conductivity |
|
Al |
1.8–2.5 |
2.2 |
Enhances strength & atmospheric corrosion resistance |
|
As |
0.02–0.10 |
0.06 |
Suppresses dezincification |
|
Zn |
Balance |
20.0 |
Improves fluidity, reduces cost |
|
Fe |
≤0.06 |
0.03 |
Refines grain structure |
|
Pb |
≤0.07 |
0.02 |
Enhances machinability |
|
Total Impurities |
≤0.30 |
0.15 |
Sn≤0.05%, Sb≤0.005% strictly controlled |
Physical Properties
|
Property |
Value |
Test Condition |
|
Density (g/cm³) |
8.40 |
20°C |
|
Melting Point (°C) |
900–930 |
– |
|
Thermal Conductivity (W/(m·K)) |
109 |
20°C |
|
Electrical Conductivity (%IACS) |
28 |
Annealed |
|
Thermal Expansion (×10⁻⁶/K) |
20.2 |
20–300°C |
|
Elastic Modulus (GPa) |
117 |
– |
Mechanical Properties
|
Condition |
Tensile Strength (MPa) |
Yield Strength (MPa) |
Elongation (%) |
Hardness (HRB) |
|
Annealed (O) |
360 [340–380] |
80 [70–90] |
50 [45–55] |
60 [55–65] |
|
¼ Hard (H02) |
450 [430–480] |
250 [230–270] |
25 [20–30] |
100 [90–110] |
|
Hard (H04) |
600 [580–620] |
540 [520–560] |
10 [8–12] |
175 [170–180] |
|
Hot Rolled |
550 [530–570] |
350 [330–370] |
20 [15–25] |
120 [110–130] |
Applications Of Astm B-111 C68700 Tubes
The versatility of ASTM B111 C68700 Tubes makes them ideal for a wide range of applications, including:
Marine and Offshore Systems: Perfect for seawater pipelines, condensers, and heat exchangers due to their exceptional resistance to saltwater corrosion.
Power plants: Used in condensers and cooling systems where thermal efficiency and durability are critical.
Chemical processing: Ideal for handling corrosive fluids and gases in chemical plants.
HVAC systems: Suitable for heat exchangers and refrigeration systems requiring high thermal conductivity.
Industrial equipment: Used in machinery and equipment that operate under high pressure and temperature conditions.
Our inventory is in stock
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|
C68700 seamless tube |
UNS C68700 tube |
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|
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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.
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.
