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Common Industrial Yarn Types, Sizes and Diameters

Various Thread Diameter Close Ups

Recently, we have posted several blogs on determining yarn and thread size and the importance diameter has in specific manufacturing applications.  Figuring out the diameter and size product that is needed can be calculated using the equations and conversion charts we have previously provided however, for quick reference we have also put together a list of the common industrial yarn types, sizes and diameters already converted for you!

Yarn and Thread Diameters and Sizes

Polyester, nylon and aramid - three of the most popular and common industrial multi-filament yarns, are typically available similar denier sizes however, each fiber type has different material densities and the diameters can vary depending on the fiber type. 

Below are charts of these three different fibers, common industrial denier size and the estimated diameter converted for you.  Please note that the actual measured diameter/thickness of the material listed may change slightly based on the amount of twist (or lack thereof) as the construction of the material (i.e cabled yarn products) may vary based upon your particular method. The below diameters are estimated in the denier sizes listed and are based on having no twist. 

Common Nylon 6,6 Sizes and Diameters

Nylon 6,6 Fiber Density 1.14 g/cm3
Yarn Size  Estimated Diameter
Denier Decitex Inches mm
420 467 0.0078 0.23
500 556 0.0085 0.25
630 700 0.0095 0.28
840 933 0.0110 0.32
1050 1167 0.0123 0.36
1260 1400 0.0134 0.40
1680 1867 0.0155 0.46
2000 2222 0.0169 0.50
2520 2800 0.0190 0.56
3000 3333 0.0208 0.61
4000 4444 0.0240 0.70
5040 5600 0.0269 0.79

 

Common Polyester Yarn Sizes and Diameters

Polyester Fiber Density 1.38 g/cm3
Yarn Size  Estimated Diameter
Denier Decitex Inches mm
420 467 0.0071 0.21
500 556 0.0077 0.23
660 733 0.0088 0.26
840 933 0.0100 0.29
1000 1111 0.0109 0.32
1100 1222 0.0114 0.34
1300 1444 0.0124 0.37
1500 1667 0.0133 0.39
1680 1867 0.0141 0.42
2000 2222 0.0154 0.45
2600 2889 0.0176 0.52
3000 3333 0.0189 0.55
4000 4444 0.0218 0.64
5000 5556 0.0244 0.72
6000 6667 0.0267 0.78

 

Common Aramid Yarn Sizes and Diameters

Aramid Fiber Density 1.44 g/cm3
Yarn Size Estimated Diameter
Denier Decitex Inches mm
400 444 0.0067 0.20
840 933 0.0098 0.29
1000 1111 0.0107 0.31
1420 1578 0.0127 0.37
1500 1667 0.0131 0.38
2000 2222 0.0151 0.44
2250 2500 0.0160 0.47
2840 3156 0.0180 0.53
5680 6311 0.0254 0.75
7100 7889 0.0284 0.84

 

As seen above, even if two different fibers have the same denier size, it doesn't necessarily mean the diameters will match because they likely have different fiber densities. For example, 1000 denier aramid has a .31 mm diameter where a 1000 denier polyester has a .32 mm diameter. They are typically close but will vary depending on the fiber type and density.

Contact us if you need help finding an yarn or thread with a specific diameter or characteristic to achieve a desired result for your industrial manufacturing application.

Need Help?

Related Links and Resources:

How to Estimate Yarn Diameter Using Denier Size and Fiber Type

How to Determine Yarn Thickness

Industrial Sewing Thread Sizes, Diameters and Needle Recommendations

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