Stainless Steel Tubing
Swagelok offers a selection of stainless steel tubing in fractional, metric, and Imperial sizes and in accordance with global specifications.
- Seamless stainless steel tubing—fractional, metric, and Imperial sizes
- Instrumentation grade
- Chemically cleaned and passivated to comply with ASTM G93 Level A and CGA 4.1
- Thermocouple-cleaned to meet the cleanliness requirements of ASTM A632-S3
- Welded stainless steel tubing-fractional sizes
Ultrahigh-Purity Stainless Steel Tubing
Swagelok® UHP stainless steel tubing has an electropolished internal surface finish of 10 µin. (0.25 µm) Ra and is cleaned and sealed in a cleanroom.
Features
- 316L stainless steel material
- Ends prepared for orbital welding
- Rinsed with 18 MΩcm DI water
- Purged with filtered nitrogen
- Marked to indicate size, material type, and heat code
Fractional and Imperial Sizes
Specifications
Material
Pressure Ratings
Sizes
• Standard Tubing
• Coaxial Tubing
|
316L seamless and welded
As shown in Swagelok Tubing Data
1/4 to 4 in. outside diameter
1/4 to 1 in. outside diameter
|
Features
Certificates of Conformance available for:
- Surface roughness
- Dimensional tolerances
- Helium leak test for welded fittings
- Purity test for moisture and particulates
- SEM pits, inclusions, or other raw material defects
- XPS minimum chromium-to-iron and chromium oxide-to-iron oxide ratios
- DI water cleaning for effluent resistivity.
Sanitary Tubing, BPE-Compliant and 3-A
Swagelok® sanitary tubing, available in 1/2 though 6 in. sizes, can be ordered to meet ASME-BPE or 3-A standards.
SpecificationsMaterial
Sizes
Surface Finish |
316 / 316L stainless steel or
304 / 304L stainless steel
1/2 through 6 in. outside diameter
• BPE SFT1 (20 µin. [0.51 µm] max ID; 32 µin. [0.81 µm] max OD)
• BPE SFT4 (15 µin. [0.38 µm] max electropolished ID; 32 µin. [0.81 µm] max OD)
• Polished ID and OD
• Additional surface finishes available. |
Features
Tube with polished inside and outside diameter is capped and packaged in polyethylene sleeve. - Tube markings
- Size
- Tubing specification number
- Material type and grade
- Heat code
- Material certifications included
- 316/316L BPE-compliant tubing:
- Borescoped
- Ends prepared for orbital welding
- 1/2 and 3/4 in. BPE-compliant tubing is seamless; all other sizes are welded.
- 3-A sanitary tubing:
- 304/304L and 316/316L stainless steel welded sanitary tubing meets 3-A standards.
- Custom-cut lengths available.
Swagelok® Medium-Pressure Tubing and Pre-Coned Tubing
Swagelok offers 316 stainless steel medium-pressure tubing with working pressures up to 15 000 psig (1034 bar) for use with medium-pressure fittings, as well as as pre-coned tubing rated up to 60 000 psig (4134 bar) for use in high-pressure applications.
- Medium-pressure tubing
- Pre-coned tubing
Medium-Pressure Tubing, Heavy-Wall Annealed and Cold-Drawn 1/8-Hard
Cold-drawn 1/8-hard tubing is more robust and allows for reduced wall thickness
and enhanced flow through the same diameter tube. All Swagelok medium-pressure tubing
is marked to indicate size, material, condition, and heat number.
Specifications
Material
Pressure Ratings
Sizes
|
Heavy-Wall Annealed
316/ 316L stainless steel
15 000 psig (1034 bar)
1/4 in. OD, 0.095 in.wall
3/8 in. OD, 0134 in. wall
1/2 in. OD, 0.188 in. wall
|
Cold-Drawn 1/8-Hard
316/ 316L stainless steel
15 000 psig (1034 bar)
1/4 in. OD, 0.065 in.wall
3/8 in. OD, 0.083 in. wall
1/2 in. OD, 0.109 in. wall
|
Pre-Coned Tubing
Pre-coned tube lengths of hardened or annealed tubing are available from 2 to 120
in. (5 to 305 cm) in length. Tube lengths are precisely coned with a high-quality
finish.
Specifications
Material
Pressure Ratings
• Hardened Tubing
• Annealed Tubing
Sizes
|
316 stainless steel
60 000 psig (4134 bar)
30 000 psig (2067 bar)
1/4 in. OD, 0.083 in.wall
1/4 in. OD, 0.095 in.wall
3/8 in. OD, 0125 in. wall
9/16 in. OD, 0.187 in. wall
|
Features
- Simplified field installation
- Insulation
- Water soluble chlorides less than 100 ppm
- Absorption-resistant fibrous glass insulation
- Resists wicking
Electric-Traced
Swagelok electric-traced bundled tubing maintains consistent temperatures in long, continuous lengths of impulse and sample lines for freeze protection, temperature maintenance up to 250°F
(121°C), or viscosity control
Steam-Traced
Swagelok light steam-traced bundled tubing is typically used for freeze protection of instrument impulse lines and analyzer transport lines. It can also maintain temperatures in smaller- diameter process lines from 50 to 200°F (10 to 93°C).
Swagelok heavy steam-traced bundled tubing is typically used to maintain higher process temperature from 200 to 400°F (93 to 204°C). or for viscosity control. Applications can include impulse, sampling, and process lines.
Options and Accessories
-
Bending tools
- Heat-shrink end-seal and entry-seal boots
- Jacket patch kits
- Center line tool
- Silicone sealant
- Controllers and thermostats
- Electric tracers: power connection, tracer termination, and tracer splice/tee connection kits
Features
- Stainless steel tubing available seamless and welded
- Low-temperature PVC jacket helps protect tubing from external corrosion and abrasion
- Fibrous glass insulation reduces heat loss and helps protect personnel
- Insulation contains less than 100 ppm of water-soluble chlorides
- Marked with part number and batch number
Options
Insulated tubing is available with urethane jacket material and in colors other than the standard black.
Accessories
-
Bending tool
- Heat-shrink end-seal boots
- Silicone sealant
- Jacket patch kit
- Caps
- Weatherproof strip insulation