general reference
VICIAG International
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93
premiumgradestainlesstubing
Tubing Volume/length Working pressures – stainless
OD ID
(mm)
bar
psi
1/32"
0.13 1735 25,160
0.18 1601 23,225
0.25 1395 20,230
0.50 734 10,645
1/16"
0.13 1902 27,580
0.18 1835 26,610
0.25 1735 25,160
0.50 1395 20,230
0.75 1067 15,480
1.00 734 10,645
weldedstainlesstubing
OD ID
(mm)
bar
psi
1/16"
0.13 1871 27,140
0.18 1794 26,025
0.25 1717 24,910
0.50 1384 20,080
0.75 1076 15,610
1.00 743 10,780
1/8"
2.10 680 9,860
1/4"
4.65 538 7,800
Maximum recommendedworkingpressures forstainlesssteel tubing
OD ID
(mm)
bar
psi
1/8"
0.68 1622 23,520
0.75 1572 22,800
1.00 1406 20,400
1.50 1075 15,600
1.70 960 13,920
2.16 662 9,600
1/4"
4.65
554 8,040
Tubing ID
Volume/
length
mm inches µl/cm µl/in
0.050 .002"
0.02 0.05
0.064 .0025"
0.03
0.08
0.075 .003"
0.04 0.12
0.10 .004"
0.08
0.21
0.13 .005"
0.13 0.32
0.17 .0067"
0.23
0.58
0.18 .007"
0.25
0.63
0.25 .010"
0.51 1.29
0.38 .015"
1.14 2.90
0.50 .020"
2.03
5.15
0.64 .025"
3.17 8.04
0.75 .030"
4.56
11.58
Tubingvolume/lengthconversionchart
1/16"OD tubing soldbyVICI typicallyhasan ID toleranceof
±0.025mm. This ismuch tighter thannormal commercial grades
of tubing;however, it isenough to result innoticeableerror if
exact volumesarenotmeasured,according to theequation
V=
Π
(½D)
2
L.
Tubing ID Volume/length
mm inches µl/cm µl/in
1.00 .040"
8.11 20.59
1.40 .055"
15.39
38.93
1.52 .060"
18.24
46.33
1.59 .062"
19.86
49.47
1.65 .065"
21.38
54.38
1.70 .067"
22.70
57.78
1.78 .070"
24.83 63.06
2.00
.079"
31.42
80.32
2.10 .083"
34.64 88.66
2.16 .085"
36.61 92.99
2.40 .094"
45.24 113.72
3.18 .125"
79.4 201
3.76 .148"
111 282
4.35 .171"
149 376
working
pressurefor
stainless
steeltubing
Theworkingpressure
for stainless tubing
is calculated from
theburstpressureby
dividingby2.5.
The theoretical burst
pressure(s)were
calculatedusing
Lame's formulaand
a safety factorof 2.
Additionally, these
resultsassume the
tubing isnot subject to
anyother stresses (e.g.
temperauredifferent
fromambient,bends)
thatwould influence
thecalculations. the
endusermustdecide
the safemaximum
workingpressurebased
on this informationand
the specificapplication.
