Stainless Steel Capillary Tube/ Tubo capilar de acero inoxidable A tube with a very thin inner diameter is called a capillary tube. Usually refers to the inner diameter is equal to or less than 1 mm of thin tube, because some of the diameter as fine as hair, so called capillary. At present, it can be seen in medicine and building materials. Application: The capillary tube is used for signal tube and wire protection tube of automatic instrument; precision optical ruler circuit, industrial sensor and electronic equipment circuit protection tube; safety protection of electrical circuit, protection of thermal instrument capillary tube and inner support of hollow high voltage optical cable. Main Standard: ASTM A632 Main Grade: 304, 316L; 1.4301, 1.4404 Outer Diameter: 1-4.7mm Wall Thickness: 0.1-1mm Length: as customers’ requirement Surface Treatment: as customers’ requirement How is it Measured? Outer Diameter (A) X Schedule or Wall Thickness (B) X Length PS: 304 VS 316L

304 benefits	316L benefits
Lower cost	Superior corrosion
Easier to weld and form	Stronger and more durable
Able to withstand corrosion from most oxidizing acids	Better for marine, offshore and washdown applications