Capillary tube stainless steel
Advantages
Capillary stainless pipes are characterized by corrosion resistance, mechanical strength, biological inertness and durability. High chemical resistance of such a tube allows its use in aggressive environments. Complex alloys containing molybdenum, nickel, chromium, silicon are most resistant. Depending on operating conditions, alloy grade with the required set of properties is selected.
Capillary tube production
Normalized by the requirements
Tubes are manufactured in length according to
| Length marking | Length | Limit tolerance for the entire length |
|---|---|---|
| out of gauge | over 300 mm | |
| dimensional | up to 4000 mm | +15 mm |
| multiple of measure | Up to 4000 mm with a 5 mm allowance each time | +15 mm |
| in coils | up to 160 m |
On request, measured and multiple measured tubes are manufactured up to 7 m long.
The tubes are standardized according to outer diameter and wall thickness.
| Outer diameter | Standardization | Permissible diameter deviation |
|---|---|---|
| More than 0,6 mm | Inner diameter and wall thickness | Up to 0.01 mm of the outside diameter deviation limit. |
| More than 0,6 mm | external and internal diameter | |
| Less than 0,6 mm | in inside and outside diameters | 1. outside diameter - of increased accuracy 2. wall thickness - of standard accuracy. With single-sided outside diameter and wall thickness tolerance |
| Less than 0,6 mm | inside diameter and wall thickness | S outside diameter - precision 2. Wall thickness - routine accuracy. With single-sided outside diameter and wall thickness tolerance. |
The size of one-sided limit deviation is permissible within the limits of the sum of maximum deviations. It is possible to order tubing with internal diameter without maximum deviation in wall thickness and outside diameter. The tube curvature shall not exceed 3 mm in the 1 m section. The tubing shall be supplied without straightening at the customer's request. The curvature of tubing with 1 mm OD and tubing supplied in coils or centralized, without sharp bends, is not allowed.
Examples of ordering phrasing
Tubes with outer diameter of 3 mm and 0,5 mm wall made of Nichrome Cr20Ni80 with standard accuracy of diameter and thickness, 3,500 mm length, with standardization of mechanical properties and chemical composition composition: X20N80 - A GOST 14 162-79 tube 3.0 0.5 3500
2. Increased accuracy tube with 3 mm outer diameter and 0,5 mm wall thickness two meters long made of nichrome with standardization of chemical composition: 3,0p 0,5p 2000 Кр - Х20Н80 - B GOST 14 162-79
3. Nichrome Cr20N80 tube with 1.4 mm inner diameter and 0.5 mm wall, regular accuracy of diameter and wall thickness, legalized for mechanical properties: Vn 1,4 0,5 - Kh20N80 - V GOST 14 162-79
The tube with standard accuracy of wall thickness and increased diameter of 3500 mm length (nominal length) with standardization of mechanical properties. Tubing Vn 1,4n 0,5 3500 - Х20Н80 - В
Application
Capillary tube of stainless steel is indispensable in medical, food and chemical industry. Such stainless steel tubes of nickel alloys 06X18H10T, 09X18H10T, 12X18H10T (diameter 0,3 - 5 mm, wall thickness 0,1 to 0,3 mm)
| Stainless pipes | Parameters | TU | Purpose |
|---|---|---|---|
| especially thin-walled | Ø 4-102 mm, wall thickness 0,08 -1,8 mm | 14-3-219-74; 14-3-894-79; 14-3-3-379-75; 14-3-501-76; 14-3-691-78; GOST 10 498-82 GOST 9941-81 | elements of aerospace, nuclear engineering, precision instruments |
| thin-walled elements of increased surface quality | Ø 5-76 mm, wall thickness 0.3-5 mm | 14-3-197-89; 14-3-760-78; 14-3-796-81; 14-3-550-90;14-3-769-78; 14-3-770-78; 14-3-1462-87; 14-3-1070-81; 14-159-255-95; |
Fuel and oil pipelines of aviation equipment, heat-exchange circuits of nuclear reactor cores, |
| nickel-based heat-resistant | Ø 5-76 mm, wall thickness 0.3-3 mm | 14-8-37-2001; 14-3-571-77; 14-3-946-80 | Pipelines operating at elevated temperatures in aggressive acid-alkali environments, in the lines for production of mineral fertilizers varnishes and paints. |
| extremely thin-walled single-layered | number of layers 2-6: Ø 16 and 28 mm wall thickness 0,15 - 0,16 mm, number of layers 2-12, Ø 38 and 48 mm, wall thickness 0,2 mm, number of layers 2-6: Ø 76 mm wall thickness 0,25 mm | 14-3-1318-85; 14-3-1780-89; 14-3-499-86 | Highly sensitive sensors, bellows, connecting pieces in the construction of jet engines |
| thin-walled specials | Ø 4-120 mm, wall thickness 1-1,5 mm | 14-3-310-74; 14-3-822-79; 14-3-1711-90; 14-3-1797-91 | Pipelines operating at elevated temperatures |
| especially thin-walled and ribbed from titanium alloys of PT-1M, PT-7M grades | Ø 8-80 mm, wall thickness 0.6-1.0 mm, Ø 7-48 mm, wall thickness 1.5-2.mm, four-ribbed 13x1.5 mm | 14-3-843-79; 14-3-820-79; 14-3-1819-79 | units of transport power units, chemical pipelines |
| from nickel NP-1A-ID | Ø 25-76 mm, wall thickness 1-5 mm | 14-3-1591-84; | caustic soda production |
| Capillary pipelines made of steel and nickel alloys | Ø 0.3-5 mm wall thickness 0.1-0.3 mm | 14-3-972-79; GOST 14 162-79 | Medical, electronics and instrument engineering |
Buy at the best price
Evek GmbH delivers pipes in retail and wholesale. The price list includes a wide range of stainless steel tubes of all varieties with different wall thickness and diameter. The technical documentation includes data on the chemical composition and mechanical properties of the products. Implementation of orders - in the shortest possible time. Wholesalers receive preferential discounts.