Small Diameter Stainless Steel Tubing Fabricator

Metric Hypodermic Tubing GaUge Chart

(All dimensions in mm)


Metric tubing is stocked in seamless as well as welded and drawn. NEST carries metric tubing based on current customer needs and some sizes may not be available.

The metric chart below is a conversion of the standard hypodermic chart, which is also commonly used in applications that use metric standards.

Most raw material orders are available to ship within one business day, but delivery may vary based on customer requirements.

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XHW:Extra Heavy Wall | HW: Heavy Wall | RW: Regular Wall | TW: Thin Wall | XTW: Extra Thin Wall | UTW: Ultra Thin Wall
More Sizes and Wall Thicknesses Available.

GAUGE SIZE NOM. OD OD RANGE NOM. WALL NOM. ID ID RANGE
6RW
5.15 5.13/5.18 .381 4.39 4.32/4.47
7RW
4.57 4.57/4.60 .381 3.81 3.73/3.89
8RW
4.19 4.17/4.22 .381 3.43 3.35/3.51
9RW
3.76 3.74/3.78 .381 3.00 2.92/3.07
10RW
3.40 3.38/3.43 .356 2.69 2.64/2.74
11RW
3.05 3.02/3.07 .330 2.39 2.34/2.44
11TW
3.02 3.02/3.07 .254 2.54 2.49/2.59
12RW
2.77 2.74/2.79 .305 2.16 2.11/2.21
12TW
2.77 2.74/2.79 .229 2.31 2.26/2.36
13RW
2.41 2.39/2.44 .305 1.80 1.75/1.85
13TW
2.41 2.39/2.44 .229 1.96 1.91/2.01
13XTW
2.41 2.39/2.44 .127 2.16 2.11/2.21
14RW
2.11 2.08/2.13 .254 1.60 1.55/1.65
14TW
2.11 2.08/2.13 .203 1.70 1.68/1.74
14XTW
2.11 2.08/2.13 .140 1.83 1.80/1.85
15RW
1.83 1.82/1.84 .229 1.37 1.33/1.41
15TW
1.83 1.82/1.84 .152 1.52 1.51/1.56
15XTW
1.83 1.82/1.84 .114 1.59 1.56/1.62
16RW
1.65 1.64/1.66 .229 1.19 1.16/1.23
16TW
1.65 1.64/1.66 .152 1.36 1.33/1.38
16XTW
1.65 1.64/1.66 .114 1.41 1.38/1.44
17RW
1.47 1.46/1.49 .203 1.07 1.03/1.10
17TW
1.47 1.46/1.49 .127 1.21 1.18/1.23
17XTW
1.47 1.46/1.49 .102 1.27 1.24/1.30
18RW
1.27 1.26/1.28 .216 0.84 0.80/0.88
18TW
1.27 1.26/1.28 .152 0.98 .095/1.00
18XTW
1.27 1.26/1.28 .101 1.07 1.04/1.09
19TW
1.07 1.05/1.08 .127 0.81 0.80/0.85
19XTW
1.07 1.05/1.08 .089 0.89 0.86/0.91
20RW
0.91 0.90/0.91 .152 0.61 0.58/0.62
20TW
0.91 0.90/0.91 .127 0.66 0.65/0.69
20XTW
0.91 0.90/0.91 .100 0.71 0.69/0.72
21RW
0.81 0.81/0.83 .152 0.51 0.50/0.53
21TW
.0.81 0.81/0.83 .0114 0.58 0.57/0.61
21XTW
0.81 0.81/0.83 0.89 0.64 0.62/0.66
22RW
0.71 0.71/0.72 .152 0.41 0.39/0.43
22TW
0.71 0.71/0.72 .102 0.51 0.48/0.52
22XTW
0.71 0.71/0.72 .075 0.56 0.55/0.58
23RW
0.64 0.64/0.65 .152 0.33 0.32/0.36
23TW
0.64 0.64/0.65 .102 0.43 0.42/0.46
23XTW
0.64 0.64/0.65 .075 0.48 0.47/0.51
24RW
0.56 0.56/0.57 .127 0.31 0.29/0.33
24TW
0.56 0.56/0.57 .102 0.37 0.34/0.39
24XTW
0.56 0.51/0.52 .075 0.36 0.34/0.43
25TW
0.51 0.51/0.52 .102 0.31 0.29/0.33
25XTW
0.51 0.51/0.52 .075 0.36 0.34/0.38
26RW
0.46 0.46/0.47 .102 0.25 0.24/0.28
26TW
0.46 0.46/0.47 .076 0.31 0.29/0.34
26XTW
0.46 0.46/0.47 .050 0.36 0.33/0.37
27RW
0.41 0.41/0.42 .102 0.20 0.19/0.23
27TW
0.41 0.41/0.42 .076 0.25 0.24/0.28
27XTW
0.41 0.41/0.42 .050 0.31 0.29/0.33

View The Fractional Tubing Charts or Hypodermic Tubing Charts