Capillary tubes

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 - 20.00 mm, while the wall thickness range is between 0.10 - 6.00 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:

  • Diameters: 0.30 - 25.00mm
  • Wall thickness: 0.10 - 6.00mm

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

Stainless capillary tubes
1.4301X5CrNi18-10AISI 304UNS S304000H18N9
1.4306X2CrNi19-11AISI 304LUNS S3040300H18N10
1.4541X6CrNiTi18-10AISI 321UNS S321001H18N9T
1.4571X6CrNiMoTi17-12-2AISI 316TiUNS S31635H17N13M2T
1.4401X5CrNiMo17-12-2AISI 316UNS S3160000H17N14M2
1.4404X2CrNiMo17-12-2AISI 316LUNS S3160300H17N14M2
1.4435X2CrNiMo18-14-3AISI 316LVMUNS S3167300H17N14M2
1.4438X2CrNiMo18-15-4AISI 317LUNS S31703UNS S31783
1.4547X1CrNiMoCuN20-18-78MlCuNUNS S31254254SMO
1.4529X1NiCrMoCuN25-20-76MoUNS N08926Alloy 926
1.4539X1NiCrMoCu25-20-5AISI 904LUNS N08904317 J5L
1.4550X6CrNiNb18-10AISI 347UNS S347000H18N12Nb
1.4462X2CrNiMoN22-5-3UNS S32205UNS S31803Duplex 2205
1.4410X2CrNiMoN25-7-4Grade F53UNS S32750Duplex 2507

Capillary tubes, heat-resistant capillaries - Grades:

Rury kapilarne żaroodporne
1.4828X15CrNiSi20-12AISI 309UNS S30900H20N12S2
1.4841X15CrNiSi25-21AISI 310 / 314UNS S31000H25N20S2
1.4845X8CrNi25-21AISI 310SUNS S31008H23N18
1.4835X9CrNiSiNCe21-11-2MA253UNS S30815253MA
1.4876X10NiCrAlTi32-12Alloy 800UNS N08800Incoloy 800

Capillary tubes, nickel and titanium alloys capillary:

Rury kapilarne ze stopów specjalnych
2.4360NiCu30FeNi 4060 / NiCu30Mn3TiUNS N04400Alloy 400
2.4068-LC-Ni99UNS N02201Alloy 201
2.4602NiCr21Mo14WNi 6022 / NiCr21Mo13W3UNS N06022Alloy C22
2.4605NiCr23Mo16Al-UNS N06059Alloy 59
2.4610NiMo16Cr16TiNi 6455 / NiCr16Mo15TiUNS N06455Alloy C4
2.4816NiCr15Fe8NiCr15FeUNS N06600Alloy 600
2.4819NiMo16Cr15WCrNiMo15-60-16UNS N10276Alloy C276
2.4851NiCr23FeNiCr23Fe15AlUNS N06601Alloy 601
2.4856NiCr22Mo9NbNi 6625UNS N06625Alloy 625
2.4858NiCr21MoCrNiMo21-42-3UNS N08825Alloy 825
3.7025Titanium Grade 1Ti Gr. 1UNS R50250Gr. 1

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