Extruded PTFE Tubing – AWG (American Wire Gauge)
We at Tef-Cap extrude and stock PTFE tubing from roughly 0.012″ inside diameter up to 4″ outside diameter, in natural, black antistatic, and color-coded resins. Most customers come to us already knowing the ID they need and the pressure or temperature they have to hold, and our job is to match that to the right wall thickness and tolerance class. The PTFE tubing sizes below cover what we ship from stock, plus the custom extrusions we run when a stock size will not work.
What Tef-Cap Supplies
Tef Cap Industries stocks and converts extruded PTFE tubing in both standard wall and thin wall constructions, cut to length, coiled, or supplied on spools. We fill orders ranging from a single 3-inch cut piece for a prototype to multi-thousand-foot production releases for OEM assemblies.
- Stock extrusions in fractional and AWG equivalent sizes, typically shipping within one to three business days
- Custom extrusions to your print, including non-standard IDs, heavy wall, and tight-tolerance bores
- Cut-to-length service from 1/4″ pieces up to 100-foot continuous coils
- Value-added work such as flaring, tip forming, beading, drilling, and kitting
Because virgin PTFE holds a continuous service range of about -400°F to +500°F and a coefficient of friction near 0.05, the same tube often solves a chemical problem and a thermal problem at once. That is why we see it in everything from fluid transfer skids to fuel lines and medical catheters.
PTFE tubing size chart: Common Stock Dimensions
The PTFE tubing size chart below reflects our most frequently ordered fractional sizes. Dimensions are nominal; actual tolerances are listed further down this page.
- 0.030″ ID x 0.040″ OD (0.005″ Nominal Wall): Wire sleeving, analytical instruments
- 1/16″ (0.062″) ID x 1/8″ (0.125″) OD (0.031″ Nominal Wall): Low volume chemical dosing
- 1/8″ (0.125″) ID x 1/4″ (0.250″) OD (0.062″ Nominal Wall): High-pressure instrument lines
- 3/16″ (0.187″) ID x 1/4″ (0.250″) OD (0.031″ Nominal Wall): Lab and dispensing lines
- 1/4″ (0.250″) ID x 3/8″ (0.375″) OD (0.062″ Nominal Wall): Pump and transfer tubing
- 3/8″ (0.375″) ID x 1/2″ (0.500″) OD (0.062″ Nominal Wall): Process fluid transfer
- 1/2″ (0.500″) ID x 5/8″ (0.625″) OD (0.062″ Nominal Wall): Vent and drain lines
- 1″ (1.000″) ID x 1 1/8″ (1.125″) OD (0.062″ Nominal Wall): Bulk transfer, sleeving over hose
We maintain many sizes between these increments as well, including AWG sleeving sizes from 24 AWG through 4/0. If you do not see your dimension on this chart, send us the ID, OD or wall you need, and we will tell you whether it runs from stock tooling.
Standard Wall, Thin Wall and Heavy Wall
Standard wall PTFE tubing sizes generally carry a wall between 0.030″ and 0.062″, which is the construction most engineers specify for pressurized fluid lines. The extra material gives you better burst resistance, and the tube holds its shape through fittings and clamps without collapsing.
- Thin wall (0.005″ to 0.020″): maximum flow area in a tight envelope, common in catheters, sleeving, and sensor lines where pressure is low
- Standard wall (0.030″ to 0.062″): the general purpose choice, balancing burst pressure, flexibility and cost
- Heavy wall (0.065″ and up): specified for higher pressure, abrasive media or applications where the tube is machined after extrusion
As a rough planning figure, a 1/4″ ID tube with a 0.062″ wall will typically hold a working pressure in the 400 to 600 psi range at room temperature, with burst several times higher. Those numbers fall off steadily as temperature climbs, so we always ask for the operating temperature before confirming a wall. Our team reviews both ends of the range with you rather than quoting a single catalog figure.
| Size | Minimum ID | Nominal ID | Maximum ID | Nominal OD | Nominal Wall |
|---|---|---|---|---|---|
| AWG 32 | .008 | .010 | .012 | .020 | .005 |
| AWG 30 | .010 | .012 | .015 | .030 | .009 |
| AWG 28 | .013 | .015 | .019 | .033 | .009 |
| AWG 26 | .016 | .018 | .022 | .036 | .009 |
| AWG 24 | .020 | .022 | .027 | .046 | .012 |
| AWG 23 | .023 | .026 | .029 | .012 | .012 |
| AWG 22 | .025 | .028 | .032 | .052 | .012 |
| AWG 21 | .029 | .032 | .035 | .056 | .012 |
| AWG 20 | .032 | .034 | .040 | .066 | .016 |
| AWG 19 | .036 | .038 | .044 | .070 | .016 |
| AWG 18 | .040 | .042 | .049 | .074 | .016 |
| AWG 17 | .045 | .047 | .054 | .079 | .016 |
| AWG 16 | .051 | .053 | .061 | .085 | .016 |
| AWG 15 | .057 | .059 | .067 | .091 | .016 |
| AWG 14 | .064 | .066 | .074 | .098 | .016 |
| AWG 13 | .072 | .076 | .082 | .108 | .016 |
| AWG 12 | .081 | .085 | .091 | .117 | .016 |
| AWG 11 | .091 | .095 | .101 | .127 | .016 |
| AWG 10 | .102 | .106 | .112 | .138 | .016 |
| AWG 9 | .114 | .118 | .124 | .158 | .020 |
| AWG 8 | .129 | .133 | .141 | .173 | .020 |
| AWG 7 | .144 | .148 | .158 | .188 | .020 |
| AWG 6 | .162 | .166 | .178 | .206 | .020 |
| AWG 5 | .182 | .186 | .198 | .226 | .020 |
| AWG 4 | .204 | .208 | .224 | .248 | .020 |
| AWG 3 | .229 | .234 | .249 | .274 | .020 |
| AWG 2 | .258 | .263 | .278 | .303 | .020 |
| AWG 1 | .289 | .294 | .311 | .334 | .020 |
| AWG 0 | .325 | .330 | .347 | .370 | .020 |
PTFE Tubing : Standard Wall AWG ( Non Mil-Spec )
| Size | Minimum ID | Nominal ID | Maximum ID | Nominal OD | Nominal Wall |
|---|---|---|---|---|---|
| AWG 32 | .008 | .010 | .012 | .020 | .005 |
| AWG 30 | .010 | .012 | .015 | .030 | .009 |
| AWG 28 | .013 | .015 | .019 | .033 | .009 |
| AWG 26 | .016 | .018 | .022 | .036 | .009 |
| AWG 24 | .020 | .022 | .027 | .042 | .010 |
| AWG 23 | .023 | .026 | .029 | .046 | .010 |
| AWG 22 | .025 | .028 | .032 | .048 | .010 |
| AWG 21 | .029 | .032 | .035 | .052 | .010 |
| AWG 20 | .032 | .034 | .040 | .058 | .012 |
| AWG 19 | .036 | .038 | .044 | .062 | .012 |
| AWG 18 | .040 | .042 | .049 | .066 | .012 |
| AWG 17 | .045 | .047 | .054 | .071 | .012 |
| AWG 16 | .051 | .053 | .061 | .077 | .012 |
| AWG 15 | .057 | .059 | .067 | .083 | .012 |
| AWG 14 | .064 | .066 | .074 | .090 | .012 |
| AWG 13 | .072 | .076 | .082 | .100 | .012 |
| AWG 12 | .081 | .085 | .091 | .109 | .012 |
| AWG 11 | .091 | .095 | .101 | .119 | .012 |
| AWG 10 | .102 | .106 | .112 | .130 | .012 |
| AWG 9 | .114 | .118 | .124 | .148 | .015 |
| AWG 8 | .129 | .133 | .141 | .163 | .015 |
| AWG 7 | .144 | .148 | .158 | .178 | .015 |
| AWG 6 | .162 | .166 | .178 | .196 | .015 |
| AWG 5 | .182 | .186 | .198 | .216 | .015 |
| AWG 4 | .204 | .208 | .224 | .238 | .015 |
| AWG 3 | .229 | .234 | .249 | .264 | .015 |
| AWG 2 | .258 | .263 | .278 | .293 | .015 |
| AWG 1 | .289 | .294 | .311 | .324 | .015 |
| AWG 0 | .325 | .330 | .347 | .360 | .015 |
PTFE Tubing : Thin Wall AWG ( Non Mil-Spec )
| Size | Minimum ID | Nominal ID | Maximum ID | Nominal OD | Nominal Wall |
|---|---|---|---|---|---|
| AWG 32 | |||||
| AWG 30 | .010 | .012 | .015 | .024 | .006 |
| AWG 28 | .013 | .015 | .018 | .027 | .006 |
| AWG 26 | .016 | .018 | .021 | .030 | .006 |
| AWG 24 | .020 | .022 | .026 | .034 | .006 |
| AWG 23 | .023 | .026 | .029 | .038 | .006 |
| AWG 22 | .025 | .028 | .032 | .040 | .006 |
| AWG 21 | .029 | .032 | .035 | .044 | .006 |
| AWG 20 | .032 | .034 | .040 | .046 | .006 |
| AWG 19 | .036 | .038 | .044 | .050 | .006 |
| AWG 18 | .040 | .042 | .049 | .054 | .006 |
| AWG 17 | .045 | .047 | .054 | .059 | .006 |
| AWG 16 | .051 | .053 | .061 | .065 | .006 |
| AWG 15 | .057 | .059 | .067 | .071 | .006 |
| AWG 14 | .064 | .066 | .074 | .082 | .008 |
| AWG 13 | .072 | .076 | .082 | .092 | .008 |
| AWG 12 | .081 | .085 | .091 | .101 | .008 |
| AWG 11 | .091 | .095 | .101 | .111 | .008 |
| AWG 10 | .102 | .106 | .112 | .122 | .008 |
| AWG 9 | .114 | .118 | .124 | .134 | .008 |
| AWG 8 | .129 | .133 | .141 | .149 | .008 |
| AWG 7 | .144 | .148 | .158 | .164 | .008 |
| AWG 6 | .162 | .166 | .178 | .186 | .010 |
| AWG 5 | .182 | .186 | .198 | .206 | .010 |
| AWG 4 | .204 | .208 | .224 | .228 | .010 |
| AWG 3 | .229 | .234 | .249 | .254 | .010 |
| AWG 2 | .258 | .263 | .278 | .283 | .010 |
| AWG 1 | .289 | .294 | .311 | .314 | .010 |
| AWG 0 | .325 | .330 | .347 | .354 | .012 |
PTFE Tubing : Light Wall AWG ( Non Mil-Spec )
| Size | Minimum ID | Nominal ID | Maximum ID | SW OD | TW OD | LW OD |
|---|---|---|---|---|---|---|
| AWG 32 | .010 | .020 | .020 | |||
| AWG 30 | .010 | .012 | .015 | .030 | .030 | .024 |
| AWG 28 | .013 | .015 | .019 | .033 | .033 | .027 |
| AWG 26 | .016 | .018 | .022 | .036 | .036 | .030 |
| AWG 24 | .020 | .022 | .027 | .046 | .042 | .034 |
| AWG 23 | .023 | .026 | .029 | .049 | .046 | .038 |
| AWG 22 | .025 | .028 | .032 | .052 | .048 | .040 |
| AWG 21 | .029 | .032 | .035 | .056 | .052 | .044 |
| AWG 20 | .032 | .034 | .040 | .066 | .058 | .046 |
| AWG 19 | .036 | .038 | .044 | .070 | .062 | .500 |
| AWG 18 | .040 | .042 | .049 | .074 | .066 | .054 |
| AWG 17 | .045 | .047 | .054 | .079 | .071 | .059 |
| AWG 16 | .051 | .053 | .061 | .085 | .077 | .065 |
| AWG 15 | .057 | .059 | .067 | .091 | .083 | .071 |
| AWG 14 | .064 | .066 | .074 | .098 | .090 | .082 |
| AWG 13 | .072 | .076 | .082 | .108 | .100 | .092 |
| AWG 12 | .081 | .085 | .091 | .117 | .109 | .101 |
| AWG 11 | .091 | .095 | .101 | .127 | .119 | .111 |
| AWG 10 | .102 | .106 | .112 | .138 | .130 | .122 |
| AWG 9 | .114 | .118 | .124 | .158 | .148 | .134 |
| AWG 8 | .129 | .133 | .141 | .173 | .163 | .149 |
| AWG 7 | .144 | .148 | .158 | .188 | .178 | .164 |
| AWG 6 | .162 | .166 | .178 | .206 | .196 | .186 |
| AWG 5 | .182 | .186 | .198 | .226 | .216 | .206 |
| AWG 4 | .204 | .208 | .224 | .248 | .238 | .228 |
| AWG 3 | .229 | .234 | .249 | .274 | .264 | .254 |
| AWG 2 | .258 | .263 | .278 | .303 | .293 | .284 |
| AWG 1 | .289 | .294 | .311 | .334 | .324 | .314 |
| AWG 0 | .325 | .330 | .347 | .370 | .360 | .354 |
PTFE Tubing : Side by Side Wall
AWG • Material Specification
- Standard Measurement : ID / OD
- Standard Wall PTFE : ASTM D 3295 C3
- Thin Wall PTFE : ASTM D 3295 C2
- Light Wall PTFE : ASTM D 3295 C1
- Mil-I-22129 ( Size Ref Only )
- AMS 3653, 3654, 3655 ( Size Ref Only )
Tolerances and Specifications We Hold
Standard commercial extruded PTFE tubing from our lines is produced to the dimensional requirements of ASTM D3295 and, where required, AMS 3653 for aerospace work. Typical tolerances look like this:
- ID under 1/4″: plus or minus 0.003″ to 0.005″
- ID from 1/4″ to 1″: plus or minus 0.005″ to 0.010″
- ID over 1″: plus or minus 1% of nominal, typically
- Wall thickness: plus or minus 10% of nominal on standard product, tighter on request
For food, beverage, and pharmaceutical lines, we supply resins compliant with FDA 21 CFR 177.1550 and can provide certificates of conformance with each shipment. USP Class VI material is available for medical device programs when the documentation trail matters as much as the dimension.
How We Help You Choose Among PTFE tubing size options
Picking from the full list of PTFE tubing size options is easier when you work backwards from the constraint that actually controls the design. We ask four questions on nearly every quote:
- What is the required flow or wire pass-through? That sets the minimum ID and rules out oversized walls.
- What is the peak operating pressure and temperature? Together, these drive the wall thickness far more than the media does.
- What fitting or termination is used? Compression fittings and flares behave very differently on thin wall versus standard wall.
- What bend radius does the routing demand? PTFE will kink if the radius is tight and the wall is light, so we often recommend stepping up a wall or adding a convoluted section.
Customers routinely call us with a part number from a competitor’s catalog and no drawing. We cross-reference it, confirm the real ID and wall, and ship the equivalent, which saves a redesign cycle on parts that have been running for years.
Why Engineers and Buyers Work With Tef Cap
We have been supplying PTFE and other fluoropolymer products from Downingtown, Pennsylvania (19335) since 1988, serving manufacturers across Chester County, the Philadelphia corridor, and the rest of North America. Our inventory depth means the common PTFE tubing sizes ship the same week rather than on an eight-week extrusion lead time.
- No minimum order on most stock sizes, so prototypes and production get the same attention
- Custom tooling for non-standard IDs, usually quoted within two business days
- Material certifications, lot traceability, and RoHS/REACH documentation on request
- In-house cutting, coiling, and kitting so parts arrive ready for your assembly line
If your print calls out a dimension that nobody stocks, we would rather run it than talk you into a compromise that creates a leak path six months later.
PTFE Tubing AWG : Resin Specifications
AWG Tubing : Standard Wall PTFE Sizes
AWG 30 Standard Wall PTFE Tubing, AWG 28 Standard Wall PTFE Tubing, AWG 26 Standard Wall PTFE Tubing, AWG 24 Standard Wall PTFE Tubing, AWG 22 Standard Wall PTFE Tubing, AWG 20 Standard Wall PTFE Tubing, AWG 19 Standard Wall PTFE Tubing, AWG 18 Standard Wall PTFE Tubing, AWG 17 Standard Wall PTFE Tubing, AWG 16 Standard Wall PTFE Tubing, AWG 15 Standard Wall PTFE Tubing, AWG 14 Standard Wall PTFE Tubing, AWG 13 Standard Wall PTFE Tubing, AWG 12 Standard Wall PTFE Tubing, AWG 11 Standard Wall PTFE Tubing, AWG 10 Standard Wall PTFE Tubing, AWG 9 Standard Wall PTFE Tubing, AWG 8 Standard Wall PTFE Tubing, AWG 7 Standard Wall PTFE Tubing, AWG 6 Standard Wall PTFE Tubing, AWG 5 Standard Wall PTFE Tubing, AWG 4 Standard Wall PTFE Tubing, AWG 3 Standard Wall PTFE Tubing, AWG 2 Standard Wall PTFE Tubing, AWG 1 Standard Wall PTFE Tubing, AWG 0 Standard Wall PTFE Tubing
AWG Tubing : Thin Wall PTFE Sizes
AWG 30 Thin Wall PTFE Tubing, AWG 28 Thin Wall PTFE Tubing, AWG 26 Thin Wall PTFE Tubing, AWG 24 Thin Wall PTFE Tubing, AWG 22 Thin Wall PTFE Tubing, AWG 20 Thin Wall PTFE Tubing, AWG 19 Thin Wall PTFE Tubing, AWG 18 Thin Wall PTFE Tubing, AWG 17 Thin Wall PTFE Tubing, AWG 16 Thin Wall PTFE Tubing, AWG 15 Thin Wall PTFE Tubing, AWG 14 Thin Wall PTFE Tubing, AWG 13 Thin Wall PTFE Tubing, AWG 12 Thin Wall PTFE Tubing, AWG 11 Thin Wall PTFE Tubing, AWG 10 Thin Wall PTFE Tubing, AWG 9 Thin Wall PTFE Tubing, AWG 8 Thin Wall PTFE Tubing, AWG 7 Thin Wall PTFE Tubing, AWG 6 Thin Wall PTFE Tubing, AWG 5 Thin Wall PTFE Tubing, AWG 4 Thin Wall PTFE Tubing, AWG 3 Thin Wall PTFE Tubing, AWG 2 Thin Wall PTFE Tubing, AWG 1 Thin Wall PTFE Tubing, AWG 0 Thin Wall PTFE Tubing
AWG Tubing : Light Wall PTFE Sizes
AWG 30 Light Wall PTFE Tubing, AWG 28 Light Wall PTFE Tubing, AWG 26 Light Wall PTFE Tubing, AWG 24 Light Wall PTFE Tubing, AWG 22 Light Wall PTFE Tubing, AWG 20 Light Wall PTFE Tubing, AWG 19 Light Wall PTFE Tubing, AWG 18 Light Wall PTFE Tubing, AWG 17 Light Wall PTFE Tubing, AWG 16 Light Wall PTFE Tubing, AWG 15 Light Wall PTFE Tubing, AWG 14 Light Wall PTFE Tubing, AWG 13 Light Wall PTFE Tubing, AWG 12 Light Wall PTFE Tubing, AWG 11 Light Wall PTFE Tubing, AWG 10 Light Wall PTFE Tubing, AWG 9 Light Wall PTFE Tubing, AWG 8 Light Wall PTFE Tubing, AWG 7 Light Wall PTFE Tubing, AWG 6 Light Wall PTFE Tubing, AWG 5 Light Wall PTFE Tubing, AWG 4 Light Wall PTFE Tubing, AWG 3 Light Wall PTFE Tubing, AWG 2 Light Wall PTFE Tubing, AWG 1 Light Wall PTFE Tubing, AWG 0 Light Wall PTFE Tubing
Available in a Variety of Colors and Thickness
Teflon PTFE tubing (Polytetrafluoroethylene) is available in various colors and thicknesses, providing flexible options for top-tier spaghetti tube solutions. PTFE tubing is known for its superior chemical resistance, high service temperature, and additional insulating properties. When dealing with extruded or even convoluted PTFE tubing, PTFE tubing is unmatched (with an upper service temperature of 500° F). You can rely on restriction-free flow with PTFE tubing, as PTFE tubing resins have a low permeability to both liquids and gasses. Currently, Teflon PTFE tubing is available in the following 10 colors:
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Pantone color-matching is also available, upon request. Additionally, PTFE tubing is produced in three sizes: standard, thin wall, and light wall (or lightweight wall). PTFE tubing is also biocompatible, crack/stress-resistant, FDA compliant, and USP Class VI.
What are the Best Uses for Extruded PTFE Tubing?
Not only does PTFE tubing provide the ultimate heat-resistance properties, but it is also chemically inert, VW-1-rated, and has consistent dielectric properties (throughout all frequencies). Some of the best uses for extruded PTFE tubing and PTFE spiral wrap tubing include:
- Fluid transfer in harsh chemical environments: PTFE tubing is ideal for harsh chemical environments, as the tubing is designed to transfer sensitive substances and materials without the risk of contamination or leaching.
- High-temperature applications: With its high heat resistance (up to 500 degrees Fahrenheit), Teflon PTFE tubing is ideal for high-temperature applications and machines.
- Electrical insulation: PTFE tubing is known as an optimal insulator for everything from circuit boards and standard cables to connector assemblies.
- Mechanical applications requiring low friction: If your mechanical application requires low friction, PTFE tubing can be customized to suit your particular specification needs.
- Medical devices: Within the healthcare industry, PTFE tubing can be utilized for hearing aids, drainage tubes, ventilators, and catheters. Teflon PTFE tubing is preferred in the medical and healthcare industries as it is manufactured with the use of non-toxic elements, ensuring it remains antibacterial in nature.
- Food and beverage processing: Because of its non-toxic properties, PTFE tubing is also optimal for food and beverage processing solutions.
- Automotive and aerospace: PTFE tubing is preferred for aircraft and automobile industries due to its nonflammable and high-heat-resistant properties.
- Linings and coatings: Teflon tubing is resistant to chemicals and standard wear and tear along with thermal cycling, making it a suitable option for linings and coatings in most industries today.
- 3D printing filament transfer: PTFE tubing is one of the most preferred solutions for 3D printing filament transfer needs.
Consider extruded Teflon PTFE for your next project for a reliable tubing upgrade. Tef-Cap is the industry leader in fluid handling and chemical resistance solutions with the use of PTFE tubing. If quality and precision matter to you, we’ve got you covered. Our team is committed to excellence and will ensure your delivered product is not only reliable and long-lasting, but that it exceeds your expectations.
What are the standard sizes of PTFE tubes?
Most extruded PTFE tubing is sold by American Wire Gauge, from AWG 32 at roughly .010 in nominal ID up to AWG 0 at about .330 in nominal ID. Each AWG size is offered in standard, thin and light wall, so a single ID can come with three different ODs. We also run fractional inch and metric IDs on request. Our charts above list minimum, nominal and maximum ID along with nominal OD and wall for every size we stock.
Is Teflon the same thing as PTFE?
Functionally, yes. PTFE stands for polytetrafluoroethylene, the polymer itself. Teflon is Chemours’ registered brand name for its PTFE and related fluoropolymer resins. When a customer asks for Teflon tubing, we quote extruded PTFE tubing. The only time the distinction matters is on a drawing that calls out a specific resin by trade name, in which case send us the print and we’ll confirm the exact material before we extrude.
What Is the Smallest PTFE Tubing Size Available?
We can extrude PTFE tubing with an inside diameter as small as about 0.012″, with walls down to roughly 0.003″. Microbore sizes like these are used in catheters, chromatography and sensor leads, and they are typically supplied on spools rather than in straight lengths.
How Is PTFE Tubing Size Specified?
PTFE tubing is specified by inside diameter and wall thickness, or by inside diameter and outside diameter. The ID controls flow or pass-through, and the wall controls pressure rating and stiffness, so giving us two of the three dimensions is enough to confirm the part.
What are standard wall PTFE tubing sizes?
Standard wall thickness typically falls between 0.030″ and 0.062″ across IDs from 1/16″ to 1″. Anything thinner is classed as thin wall, and anything above about 0.065″ is heavy wall, which we run for higher pressure and machined applications.
What Pressure Can Extruded PTFE Tubing Handle?
Most standard wall sizes hold working pressures between roughly 200 and 800 psi at 73°F, depending on diameter and wall. Ratings drop sharply with temperature, often by half or more at 300°F, so always derate for the hottest condition the line will see.
Can You Supply PTFE Tubing in Custom Lengths and Colors?
Yes. We cut from 1/4″ pieces up to 100-foot coils and supply natural, black antistatic, and color-coded tubing for line identification, with color options confirmed at quote.
Request a Quote on Your PTFE Tubing Size
Send us your ID, wall, or OD along with the operating temperature and pressure, and our team will confirm availability, tolerances, and lead time. Contact Tef Cap Industries in Downingtown, PA, or submit your print online to get pricing on stock and custom extrusions.