Stainless Steel Capillary Tube

As a small diameter tube manufacturer, Fushun offers tubing in custom sizes and special alloys designed for your specific application. We are also able to provide same-day shipping for all stock sizes of our small diameter tubing.

Capillary tubes are special, precision-made, high quality metallurgical products of circular profile, obtained by cold drawing. Unlike standard hot and cold made seamless pipes, they are characterized by extremely small walls and diameters with a particularly narrow dimension.The capillary tubes, apart from their small dimensions, are characterized by much smaller deviations of the straightness, precision of the surface itself, the length and the ends of the product. The best visual example that will stimulate the reader’s imagination is the needle present in everyday medicine.Capillary tubes are most often produced from stainless steel, acid resistant, heat resistant and creep resistant, special alloys, nickel, titanium and other non-ferrous metals. They are used for the production of pressure equipment and systems, measuring technology equipment, specialized food processing equipment in the food and nitrogen industry, ship construction, parts responsible for furnaces and boilers, and hydrogen discharge systems.The outer diameter range of capillary tubes should be closed in the range of 0.30 – 25.00 mm, while the wall thickness range is between 0.10 – 6 mm. The use of capillary tubes can be found in the engineering, pharmacological, aerospace, petrochemical and chemical industries, and in the energy, food, cryogenic and machine industries.We provide – Capillary tubes in coils or in straight sections, cut to size according to customer specifications, with a variety of surface finishes and ends:

Stainless Steel Capillary Tubes Specification

Product Name: Stainless Steel Capillary Tubes

Grade: SS304, SS304L, SS316, SS316L, SS321, SS321H, 309, 310S

O.D: 0.30 –25.0 mm

W.T: 0.10 – 6 mm

Length: As per Customer Requirement

Standard: ASTM, DIN, ISO, other International Standards

Delivery Condition: Pickled, Polished, Bright Annealed, Electrolytic Polished

Key Products: SS304 Capillary Tubes, SS304L Capillary Tubes, SS316 Capillary Tubes, SS316L    Capillary Tubes, Electropolished Capillary Tubes

Why choose us?

For over 20 years, our company has been committed to help our customers find the type of small diameter tubing they need for their application. We offer short lead times on burr free cut-to-length tubing and a complete array of tubing fabrication options. We have the lowest minimums in the industry and offer rapid delivery on most special and custom requests. If you don’t see what you need in the master gauge chart, please contact us to discuss your requirements.

Stainless Steel Capillary Tubes Application / Usage

Our company commonly supplies micro tubing to the medical, pharmaceutical, food & beverage, and industrial industries, and we will work with you to provide the exact tubing specifications you need.

Hydraulic control lines

Liquid/ Gas Transportation Lines

Medical devices and equipment’s

Chromatography applications

Measurement devices

Remote thermometer systems

Small precision stainless steel antenna

Watches

Car antenna tube

Laser engraving equipment

Medical Tube

Stainless steel medical tubes available as thin wall tubes in seamless or welded redrawn condition or as seamless thick wall tubes. Medical tubes are available in a range of stainless steels and delivered with cold drawn, ground, extremely polished or bright surface, relying on size and wall thickness.stainless steel medical tube is well-known for its flexibility, rotproofness, high-temperature resistance, tensile stress, and waterproofness. Medical tubing is characterized by tight tolerances, the minimum OD can be tailored into 0.19mm, with wall thickness at 0.02mm.

Capillary tubes, duplex capillaries, stainless and acid resistant – Grades:

Capillary stainless steel tubes

1.4301 – AISI 304 – UNS S30400 – 0H18N9

1.4306 – AISI 304L – UNS S30403 – 00H18N10

1.4541 – AISI 321 – UNS S32100 – 1H18N9T

1.4571 – AISI 316Ti – UNS S31635 – H17N13M2T

1.4401 – AISI 316 – UNS S31600 – 00H17N14M2

1.4404 – AISI 316L – UNS S31603 – 00H17N14M2

1.4435- AISI 316LVM – UNS S31673 – 00H17N14M2

1.4438 – AISI 317L – UNS S31703 – UNS S31783

1.4547 – F44 – UNS S31254 – 254SMO

1.4529 – 6Mo – UNS N08926 – Alloy 926

1.4539 – AISI 904L – UNS N08904 – SS2562

1.4550 – AISI 347 – UNS S34700 – 0H18N12Nb

1.4462 – UNS S32205 – UNS S31803 – SAF 2205

1.4410 – Grade F53 – UNS S32750 – SAF 2507

Capillary tubes, heat-resistant capillaries – Grades:

Heat resistant capillary tubes

1.4828 – AISI 309 – UNS S30900 – H20N12S2

1.4841 – AISI 310 / 314 – UNS S31000 – H25N20S2

1.4845 – AISI 310S – UNS S31008 – H23N18

1.4835 – UNS S30815 – 253MA

1.4876 – Alloy 800 – UNS N08800 – Alloy 800

Capillary tubes, nickel and titanium alloys capillary:

Capillary tube in Special Alloys

2.4360 – Alloy 400 – NiCu30Fe – NiCu30Mn3Ti – UNS N04400

2.4068 – Alloy 201 – LC-Ni99 – UNS N02201

2.4602 – Alloy C22 – NiCr21Mo14W – NiCr21Mo13W3 – UNS N06022

2.4605 – Alloy 59 – NiCr23Mo16Al – UNS N06059

2.4610 – Alloy C4 – NiMo16Cr16Ti – NiCr16Mo15Ti – UNS N06455

2.4816 – Alloy 600 – NiCr15Fe8NiCr15Fe – UNS N06600

2.4819 – Alloy C276 – NiMo16Cr15W – CrNiMo15-60-16 – UNS N10276

2.4851 – Alloy 601 – NiCr23Fe – NiCr23Fe15Al – UNS N06601

2.4856 – Alloy 625 – NiCr22Mo9Nb – UNS N06625

2.4858 – Alloy 825 – NiCr21MoCrNiMo21-42-3 – UNS N08825

3.7025 – Titanium Grade 1 – Ti Gr. 1 – UNS R50250

Stainless Steel Capillary Tube Testing

We can provide the following types of testing for medical tubes:

Eddy current test (on request);

Flaring test;

Flattening test;

Mechanical test;

Microstructure test;

Ultrasonic test (on request)