Capillary tubes

Our capillary tubes have precise dimensions, a bright surface, are cleaned, and ready to use! Merinox offers a wide range of seamless capillary tubing, available in stainless steel, nickel alloys and titanium. Our capillary tubes are characterised by tight tolerances with precise dimensional accuracy, it smooths and cleans bright surfaces and is free from oil, grease, and other particles. This ensures an optimised flow of liquids and gases for all kind of industrial applications.

We have a variety of capillary tubes available

Our capillary tubes are available in various alloys and materials, such as:

The capillary tubes are either annealed (hardness < 180HV) or hard drawn (hardness 260-330 HV) stainless steel. The tolerances are according to EN10216-5 TC1/ISO 1127 D4/T3, ASTM A 269/A 213, or closer.


OD = + 0,05 mm & – 0,00 mm / + 0,002” & – 0,000”

ID= + 0,00 mm & – 0,05 mm / + 0,000” & – 0,002”


  • Bright annealed: yield strength 500 – 700 N/mm²
  • Half hard: yield strength 700 – 800 N/mm²
  • Hard drawn: yield strength 800 – 900 N/mm²
  • Extra hard: yield strength >1000 N/mm²


  • Single random of 3.5 to 6 meters
  • Coils up to 1524 metres. long
  • Cut to lengths on customer specification

The various applications of our tubes

The point styles on needles and cannula can be used for a wide variety of applications. Merinox has the experience and capability to supply intricate parts to exact specifications by utilising the latest precision high-speed equipment specially designed to cut, flare, reduce, expand, bulge, close, dimple, lance, slot, bend, coil, pierce, or notch. We provide the highest quality at a very competitive price. On request, we can also supply other dimensions, respective qualities, or redrawing welding all according in same conditions.

Contact us for more information

Would you like to invest in capillary tubes of the highest quality? Or are you more interested in high-pressure tubes ? Get in touch with us. Fill out the online form or phone us at the number +31 (0)78 691 7800. We are happy to provide valuable and professional advice regarding suitable materials for your applications.