Gnee Steel (Tianjin) Co., Ltd.

Methods For Selecting Copper Tubing

Aug 18, 2025

The methods for selecting copper tubing are as follows:

1. First, assess the advantages and disadvantages of copper tubing components. We can observe this by examining the tubing itself. On its outer surface, use a sharp object to scrape it. If a deep line appears, this indicates high-quality copper, as such tubing is produced using pure copper with excellent ductility. Therefore, this high-quality material is typically used in military manufacturing or specialized industries;

2. After scratching the outer surface of the copper tubing, we can also scratch the inner surface and compare the results. If the effects are the same, it indicates that the overall material quality of the copper tubing is good. Conversely, it may suggest that the tubing itself is not made of pure copper;

3. Due to the inherent properties of copper fittings, when force is applied to bend them, they are relatively easy to deform. Conversely, this can indicate that the material is not pure copper or that the copper itself is of poor quality.

GNEE specializes in the design, research, development, and production of copper fittings, and is a leading manufacturer in the industry for non-standard customization. Our products cover a wide range of series, including various types of connecting pipes, tees, elbows, bent pipes, and manifolds, with thousands of varieties. We have conducted various tests and inspections, including RoHS, PCBs, PCNs, pressure resistance, flattening, tensile strength, and metallographic analysis.

about Us

The company has a cluster of leading copper processing production lines in China, including:
German imported precision copper tube production line (annual output of 30,000 tons)
Japanese technology copper foil rolling line (thinnest up to 6μm)
Fully automatic copper bar continuous extrusion line
Intelligent copper sheet and strip finishing mill unit
Digitalized control and management of the whole production process is realized through MES system, and the dimensional accuracy of the products can reach ±0.01mm.

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