C70600 Grade Copper Pipes Precision Straightened For HVACR And Industrial
Our High-Quality Steel-Copper Tubes are precision-engineered from premium C70600 (CuNi 90/10) copper-nickel alloy and pure copper materials, offering exceptional performance for demanding thermal and mechanical applications. These tubes undergo a specialized straightening process to ensure perfect linearity, critical for efficient installation and optimal system performance in HVACR and industrial systems. Manufactured with a minimum 99.9% copper content and processed using advanced hot-rolled and cold-rolled techniques, our copper pipes guarantee superior heat conductivity, excellent elongation (≥45%), and high ultimate strength (≥205 MPa). Available in round, square, and rectangular shapes with fully customizable dimensions, they are the reliable cornerstone for any heat exchange or fluid transportation system.
| Description | Copper pipe/tube |
|---|---|
| Standard | ASTMB280,JIS H3300,AS/NZS1571.JIS3300-2006 |
| Material | UNS:C10100,C10200,C11000,C12000. GB:TU0,TU1,TU2,TU3,TP1,TP2 JIS:C1011,C1020,C1100,C1221,C1201,C1220 |
| Surface | mill,polished,bright,oiled,hair line,brush,mirror,sand blast,or as required |
| Hardness | 1/16 hard,1/8 hard,3/8 hard,1/4 hard,1/2hard,full hard,soft,etc |
| Shape | Round,Square,Rectangular,Oval,half-round |
| Size | OD:2mm~610mm WT:0.3mm~80mm Length: 1m, 2m, 3m, 6m, or as required. |
| Application | Copper are of good heat conductibility. They are widely used for heat exchangers, radiators, coolers, electro-heat up pipe, air conditioner and refrigerators, oil transportation, brake pipes, water pipes and gas pipes for construction,etc. |
- HVACR Systems: Essential components for air conditioners, refrigerators, heat exchangers, condensers, evaporators, and cooler units due to excellent heat conductibility.
- Industrial Construction: Widely used for water supply lines, gas pipes, brake pipes, and hydraulic systems in building infrastructure.
- Heat Transfer Equipment: Ideal for manufacturing radiators, electro-heat up pipes, oil coolers, and various industrial heat exchangers.
- Fluid Transportation: A reliable choice for transporting oil, water, and other fluids in industrial plants and marine applications (especially C70600 for corrosion resistance).
Copper's fundamental principle in these applications is its superior thermal and electrical conductivity. In a heat exchanger or refrigerant system, the copper tube acts as an efficient conduit for thermal energy transfer, allowing for rapid cooling or heating. The addition of nickel in the C70600 grade enhances corrosion resistance, particularly against seawater and saline environments. The precision straightening process ensures no internal flow restrictions or fitting issues, leading to consistent pressure distribution and peak system efficiency. Its high elongation and strength provide durability against vibration, thermal expansion, and pressure fluctuations, ensuring long-term system integrity.
A: C70600 copper-nickel alloy offers significantly higher resistance to corrosion, especially in marine, saline, and alkaline environments. It provides superior durability for applications like shipbuilding, offshore platforms, and coastal power plants while maintaining good thermal conductivity.
A: Yes. Our tubes, especially in hardened tempers (e.g., 1/2 hard, full hard), meet or exceed the strength requirements (≥205 MPa Ultimate Strength) for high-pressure refrigerants. They are manufactured to standards like ASTM B280, which governs air conditioning and refrigeration field (ACR) copper tubes.
A: Absolutely. We specialize in customized processing. Outside Diameters from 2mm to 910mm, Wall Thickness from 0.2mm to 120mm, and various shapes (round, square, rectangular) can be produced as per your technical drawings. We also offer value-added services like bending, cutting, and welding.
A: "Straightened" means the coiled or slightly bent tube has been processed through a straightening machine to achieve perfect linearity. This is crucial for seamless installation in long pipeline runs, easy insertion into fittings, and ensuring uniform heat transfer and fluid flow without energy-wasting turbulence or leaks.
A: We pack our copper tubes securely in sturdy wooden cases. This prevents bending, crushing, and surface damage during long-distance transportation and handling, guaranteeing the products arrive at your site in perfect, ready-to-use condition.
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