C68700 Aluminum Brass Tube PDF
C68700 Brass Copper Alloy Tube ASTM B111
| Copper or Copper Alloy UNS NO. | Description |
| C44300 | Admiralty Metals, B, C, and D |
| C68700 | Aluminum Brass, B |
| C70600 | 90-10 Copper-Nickel |
| C71500 | 70-30 Copper-Nickel |
Standard: ASTM B111 / B111M.
Description Name: ASTM B111 copper tubes, C44300 copper tubes, C44300 Admiralty brass tubes, C44300 admiralty brass pipes, C68700 copper tubes, C68700 aluminum brass tubes, C68700 aluminum brass pipes, C70600 Copper tubes, C70600 brass pipes, C70400 copper tubes, C70400 Brass tubes and pipes, C70400 Copper-Nickel tubes and pipes. C71500 copper tubes, C71500 Brass tubes and pipes, C71500 Copper-Nickel tubes and pipes, C71640 copper tubes, C71640 Brass tubes and pipes, C71640 Copper-Nickel tubes and pipes.
Size: 6mm to 100 mm.
Wall Thickness: 0.5 to 25mm.
Shape: Round.
Length: Single random length/ Double random length or as customer's actual request.
Grade: C44300, C68700, C70400, C70600, C71500, C71640.
Heat Exchanger And Condensers Copper Alloy Tubes
| Admiralty C44300 | Highly resistant to general corrosion – where pressures, velocities and temperatures are moderate. |
| Alluminium Brass C68700 | These tubes are especially adapted to resist corrosion by both salt and brackish waters. |
| Copper Nickel 90/10 C70600 | This alloy is highly resistant to corrosion by turbulently flowing sea water indicate it to be an excellent condenser tube alloy for salt water use. |
| Copper Nickel 80/20 C71000 | This alloy has intermediate properties between those of 10% and 30% copper nickel. Tubes of this alloy have found widest use in feedwater heaters and evaporators. |
| Copper Nickel 70/30 C71500 | Condenser tubes of this alloy are giving long and dependable service at sea. It is also highly satisfactory for tubes in evaporators, condensers, and superheaters. This alloy is particularly desirable where high temperatures are encountered. |
Common Product Forms & Dimensions
|
Form |
Thickness/Dia. (mm) |
Width/Length (mm) |
Special Specifications |
|
Tube |
Wall: 0.15–10.0 |
OD: 3.0–260 |
Seamless/Welded condenser tubes (0.5–25m) |
|
Bar |
Φ3–200 |
Cut-to-length: 0.5–6m |
Hex/Square/Forged rounds |
|
Plate |
0.5–80 |
1000–6000 (L) ×500–3000 (W) |
Max. single plate: 5 tons |
|
Strip |
0.08–2.5 |
Coil width: 10–600 |
Slitting tolerance ±0.1mm |
Product Applications
Marine Engineering: Ship condenser tubes, desalination pipelines, subsea valves.
Energy & Power: Thermal power plant condensers, nuclear cooling systems, refinery heat exchangers.
HVAC: Central AC evaporator tubes, chlorinated hot water pipes.
Industrial Components: Corrosion-resistant bearing bushings, deep-drawn sealing rings.
Processing Guidelines
|
Process |
Key Parameters |
Risk Control |
|
Hot Working |
750–830°C (finish >550°C) |
Control O₂ at 0.5–1.5% (prevents Zn volatilization) |
|
Welding |
TIG: 80–120A |
Argon purity ≥99.99% + preheat 150°C (prevents As porosity) |
|
Annealing |
Stress relief: 260–270°C×1h |
N₂ atmosphere anti-oxidation |
|
Cold Working |
Deformation ≤80% |
Intermediate annealing at 520–650°C |
|
Surface Treatment |
Pickling (HNO₃-H₂SO₄) + tinning |
Essential for seawater exposure |
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.
