Views: 222 Author: Robert Publish Time: 2025-02-27 Origin: Site
Content Menu
● Introduction to SS Capillary Tubes
>> Applications
>> Choosing Reliable Suppliers
● Manufacturing Process of SS Capillary Tubes
● How to Choose Reliable Suppliers
>> 1. What are the common applications of SS capillary tubes?
>> 2. How are SS capillary tubes manufactured?
>> 3. What are the key factors to consider when choosing a supplier?
>> 4. What are the common grades of stainless steel used for capillary tubes?
>> 5. How can I ensure the quality of SS capillary tubes?
Finding reliable suppliers of stainless steel (SS) capillary tubes in China is crucial for industries that require precision and quality in their components. SS capillary tubes are used in various sectors, including engineering, pharmacology, aerospace, petrochemical, and chemical industries, due to their excellent corrosion resistance and mechanical properties. This article will guide you through the process of identifying trustworthy suppliers and understanding the manufacturing process of SS capillary tubes in China.
SS capillary tubes are precision-made products with extremely small diameters and wall thicknesses. They are characterized by their high precision, smooth surface finish, and excellent mechanical properties. These tubes are often produced from stainless steel grades such as SS304, SS316, and SS321, which offer superior resistance to corrosion and high temperatures.
SS capillary tubes are characterized by their high tensile strength, corrosion resistance, heat resistance, and high tolerances. They are made from a single piece of steel, ensuring a continuous grain structure that enhances their durability and performance. These tubes are lighter in weight compared to other materials, which is advantageous in applications where weight reduction is crucial[1][9].
SS capillary tubes have extensive applications across multiple industries:
- Medical Industry: Used in medical device manufacturing, such as puncture needle tubes and injection needle tubes[1][5].
- Instrumentation: Employed in temperature sensors, instrument tubes, and sensor tubes[1].
- Aerospace: Used in automation instrument signal tubes and wire protection tubes[3].
- Chemical and Petrochemical Industries: Utilized in chemical equipment and marine applications due to their high corrosion resistance[1][2].
- Pharmaceutical Industry: SS 316L capillary tubes are used in vaccine production and drug manufacturing[6].
When selecting a reliable supplier, consider factors such as quality and precision, material variety, customer service, and compliance with international standards like ASTM, DIN, and ISO.
The manufacturing process of SS capillary tubes typically involves several key steps:
1. Starting Material: The process begins with a hollow tube, known as a "mother tube," which is produced by extrusion or gun drilling.
2. Cold Drawing: The mother tube is then drawn through a series of dies, each smaller than the previous one, to reduce the tube's diameter and wall thickness while increasing its length. A mandrel may be used to control the inner diameter and prevent the tube from collapsing.
3. Inter-stage Annealing: After several drawing passes, the tube is annealed to restore its ductility and relieve internal stresses.
4. Final Drawing: The final drawing steps achieve the desired dimensions and surface finish.
5. Pickling and Polishing: The tube may be pickled in an acid bath to remove any scale or surface contamination and then polished to enhance its appearance and corrosion resistance.
Several companies in China specialize in the manufacture and supply of SS capillary tubes:
- CIVMATS: Known for producing high-precision SS capillary tubes with tight tolerances of ±0.02mm. They offer custom sizes and competitive pricing.
- Fushun Special Steel Co., Ltd: Offers custom sizes and special alloys for specific applications. They provide rapid delivery options and have extensive experience in the steel industry.
- Wide Steel: Manufactures SS316L capillary tubes with customized lengths and small tolerances. They offer factory-direct pricing and a wide range of stainless steel products.
When selecting a reliable supplier, consider the following factors:
- Quality and Precision: Ensure the supplier can meet your required tolerances and surface finishes.
- Material Variety: Check if they offer the specific stainless steel grades you need.
- Customer Service: Look for suppliers with good communication and after-sales support.
- Certifications and Standards: Verify if they comply with international standards such as ASTM, DIN, and ISO.
Finding reliable SS capillary tube suppliers in China involves understanding the manufacturing process, identifying key suppliers, and evaluating their capabilities based on quality, material variety, customer service, and compliance with international standards. By following these guidelines, you can ensure that your components meet the high standards required by your industry.
SS capillary tubes are used in various industries such as engineering, pharmacology, aerospace, petrochemical, and chemical industries. They are ideal for applications requiring precision, corrosion resistance, and high mechanical strength.
SS capillary tubes are manufactured through a process involving cold drawing, inter-stage annealing, and final drawing. The process starts with a hollow tube that is drawn through dies to achieve the desired dimensions and surface finish.
When choosing a supplier, consider factors such as quality and precision, material variety, customer service, and compliance with international standards like ASTM, DIN, and ISO.
Common grades include SS304, SS316, SS321, and SS316L. These grades offer excellent corrosion resistance and mechanical properties suitable for various applications.
Ensure quality by verifying the supplier's manufacturing process, inspecting the tubes for dimensional accuracy and surface finish, and checking for compliance with relevant international standards.
[1] https://www.civmats.com/products/PRODUCTS-Stainless-Steel-Capillary.HTML
[2] https://www.sscontrolline.com/what-is-the-manufacturing-process-of-stainless-steel-seamless-capillary-coil-tubing.html
[3] https://www.cambridgeinternational.org/Images/520575-june-2022-examiner-report.pdf
[4] https://www.fushunsteeltube.com/product-item/stainless-steel-capillary-tube/
[5] https://www.geopsi.com/products/capillary-tube/0-250-capillary-tube-stainless-steel-316l-049/
[6] https://www.xiahepublishing.com/2475-7543/MRP-2022-801
[7] https://www.manufacturers.com.tw/electronics/Capillary-Tubing.html
[8] https://www.youtube.com/watch?v=78z8qqeyHbY
[9] https://nos.netease.com/ydschool-online/210702_182710-%E8%AF%8D%E6%B1%87%E4%B8%93%E9%A1%B9%E5%86%99%E4%BD%9C%E8%AF%BE%E5%A0%82%E7%AC%94%E8%AE%B0.pdf
[10] https://widesteel.com/product/ss-316l-capillary-tube-straight-type-1mm-2mm-3mm-4mm-annealed-supplier-in-china/
