Standard: ASTM, GB, AISI, JIS, DIN, etc.

Grade: 304, 304L, 316L, 410, etc.

O.D.: 0.3–12.0 mm

Product Detail | Technical Information | Packaging | More

Product Detail1

Shanghai Metal Corporation is a leading manufacturer and supplier of stainless steel capillary tubes.

Stainless steel capillary tubes are precision tubes designed for applications requiring small diameters, accurate dimensions and reliable performance. They are widely used in instrumentation, medical equipment, analytical instruments, automotive components and other precision applications. Available in grades such as 304, 304L, 316L and 410, with O.D. from 0.3–12.0 mm and customized wall thickness and length options.

If you want to know more about our stainless steel capillary tubes, including specifications and prices, please feel free to contact us. We will reply to you within 24 hours.

Material：Stainless Steel
Wall Thickness：0.05–0.50 mm
Length：Customized
Type: Seamless / Welded
Tube Structure: Small-diameter stainless steel tube with a precise hollow passage.

1. Precise Dimensions
Provides consistent outer diameter and wall thickness for precision applications.

2. Smooth Inner Surface
Helps ensure stable fluid flow and reduces resistance inside the tube.

3. Corrosion Resistance
Provides reliable performance in applications exposed to moisture, chemicals and other corrosive environments.

4. High Strength
Offers good mechanical strength and dimensional stability for demanding applications.

Instrumentation
Used in pressure gauges, sensors and precision instruments for small-diameter fluid or gas connections. Suitable for applications requiring accurate dimensions and stable performance. Recommended for small O.D. capillary tubes.

Medical Equipment
Used in medical instruments and precision fluid-handling components where corrosion resistance and dimensional accuracy are important. 304 and 316L grades are recommended according to the application.

Analytical Instruments
Used as small fluid or gas flow paths in laboratory and analytical equipment. The smooth inner surface helps maintain stable flow and facilitates cleaning. Small O.D. and thin-wall tubes are recommended.

OD T	0.05-0.07	0.07-0.1	0.1-0.14	0.14-0.19	0.19-0.24	0.24-0.39	0.39-0.49	0.49-0.99	0.99-1.4	1.4-2
0.2- 0.3	√	√	---	---	---	---	---	---	---	---
0.3- 0.4	√	√	√	√	---	---	---	---	---	---
0.4- 0.5	√	√	√	√	√	---	---	---	---	---
0.5- 0.8	√	√	√	√	√	√	---	---	---	---
0.8- 1.0	√	√	√	√	√	√	√	---	---	---
1.0- 1.5	√	√	√	√	√	√	√	√	---	---
1.5- 2.0	√	√	√	√	√	√	√	√	---	---
2.0- 2.5	---	√	√	√	√	√	√	√	---	---
2.5- 3.0	---	√	√	√	√	√	√	√	√	---
3.0- 3.5	---	---	√	√	√	√	√	√	√	---
3.5- 4.0	---	---	---	√	√	√	√	√	√	---
4.0- 5.0	---	---	---	√	√	√	√	√	√	√
5.0- 6.0	---	---	---	---	√	√	√	√	√	√

Deviation grade	Allowable deviation
D1	±1.5%, min ±0.75 mm
D2	±1.0%, min ±0.50 mm
D3	±0.75%, min ±0.30 mm
D4	±0.50%, min ±0.10 mm

Standard Packaging:

Each stainless steel capillary tube is carefully inspected and protected with plastic bags or protective film. Tubes are packed in protective cartons or wooden cases according to the tube size, length and order quantity. For long or precision tubes, suitable supports are used to help prevent bending, deformation and surface damage during transportation.

Shipping:

We support FCL and LCL sea freight, air freight and express delivery according to order quantity and destination. Shipping terms and transportation methods can be arranged according to customer requirements.

Lead Time:

Standard orders: 15–25 working days

Customized orders: 25–40 working days

Q: Can you provide customized samples?

A: Yes. We support customized samples according to your requirements, including stainless steel grade, O.D., wall thickness and length. Sample specifications can be discussed before production.

Q: Can the wall thickness and length be customized?

A: Yes. Wall thickness and tube length can be customized according to the required outside diameter, application and order specifications.

Q: How are the stainless steel capillary tubes packaged?

A: Each tube is protected with plastic bags or protective film to help prevent scratches and surface damage. The tubes are then packed in protective cartons or wooden cases according to the tube size, length and order quantity. Suitable protection is provided to help prevent bending and deformation during transportation.

Q: How do I choose the right stainless steel capillary tube?

A: The selection depends mainly on the required O.D., wall thickness, length, stainless steel grade, working medium and application environment. Please provide these requirements when requesting a quotation so we can recommend a suitable specification.

Q: Can the stainless steel capillary tubes be polished and passivated?

A: Yes. We can provide polishing and passivation services according to your requirements. Surface finishing options can be discussed based on the tube material, application and required surface condition.

Q: Can you provide MTC and other quality documents?

A: Yes. We can provide MTC (Material Test Certificate) and other quality documents according to customer requirements. Relevant certificates and inspection documents can be provided with the order when required.

Case Study

Products & Service

Stainless Steel Capillary Tube

Metal