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Advantages Of SS Capillary Tube

The ss capillary tube has high precision and can be used in various measuring instruments. Based on its thick-walled, small-diameter structure (usually 1/8" or smaller diameter), such pipes will be used in various key applications, including nuclear reactors and even resistance-heated ion rocket jets.

Key Uses

With the technological advances in the life science market, small components can be used under higher operating pressure. Ultra-small-diameter capillary is very important for high performance and ultra-high performance liquid chromatography (HPLC and UPLC) equipment. Generally, the outer diameter of such capillaries is less than 1/16 (1.59 mm), which can be used in many key applications. In addition, the use of seamless capillaries in key applications can improve the necessary sampling efficiency.

Certain professional manufacturing technologies can achieve the cleanliness of key products required for such applications. Impurities such as grease, grease and other foreign substances left behind in the manufacturing process of stainless steel capillaries can lead to cross-contamination and sample reading errors. Before installation, traditional pipe fittings usually require additional cleaning on site. In order to minimize the risk of cross-contamination and save time, some special processes have been developed. Through this process, the pipes will be cleaned immediately after the manufacturing process under high pressure and high temperature to remove all kinds of impurities left behind. In this way, the impurities under the fittings can be reduced and the integrity of the samples can be ensured, thus providing consistent results.

Advantages

Because the high-quality seamless capillary is made of a single piece of homogeneous steel and has continuous and uninterrupted granular structure, it is more suitable for the major application sites requiring the use of homogeneous materials for the whole tube. Welding and mechanical fittings can produce discontinuity, which may lead to crevice corrosion and mechanical failure.

High-quality stainless steel will form a passive protective layer on the surface under oxygen-enriched conditions. Because different alloying elements have different melting points, changing the key chemical composition in the heat affected zone (HAZ) can cause the layer to be affected by poor heat treatment and welding.

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