C68700 Aluminum Brass Tube PDF
Products Description
C68700 Aluminum Brass "Arsenical" UNS CDA101, ASTM B111, ASTM B395, ASTM B187, ASTM B152.
C68700 has especially good corrosion resistance properties in sea water. C44300 Tube and C68700 Tube have good corrosion resistance. C68700 annealed in O61 Temper. Tensile strength minimum in 345Mpa, Yield Strength minimum in 125Mpa.
C68700 Tube density in 8.33g/cm3, 0.301lb/in.3
Typical Application of C68700 Aluminum Brass "Arsenical"
Industrial: Condenser Tube, Evaporator Tubes, Ferrules, Distiller Tubes, Heat Exchanger Tubes
C68700 aluminium brass tubes are widely used in "Seawater desalting plants"
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] |
FAQs
Q1: Is it suitable for potable water systems?
A: Restricted! Arsenic leaching risk. Use only in industrial cooling water systems.
Q2: How to resolve welding porosity?
A: Caused by As/Zn volatilization. Use ≥99.99% argon, preheat 150–200°C, post-weld stress relieve at 260°C×1h.
Q3: How to prevent hot cracking?
A: Control slightly oxidizing atmosphere (O₂: 0.5–1.5%), limit heating time ≤2h.
Q4: How to select vs. C44300 tin brass?
A: C68700 offers superior seawater resistance & 15% cost reduction; C44300 is arsenic-free for civilian applications.
Our inventory is in stock
|
C68700 copper tube |
C68700 condenser tube |
C68700 brass pipe supplier |
|
C68700 brass tube |
Copper alloy C68700 tube |
ASTM B111 C68700 |
|
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.
