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What is stainless steel corrugated tube?
The Corrugated Tubes comes with helical grooves which is obtained from plain tubes by the process of cold forming. The Stainless Steel Corrugated Tubes allows the pipe to bend and change the flow direction without making more connections through the welding process. They help to reduce leakage through the bends.
The number of starts of the helix and angle can be changed to optimize the heat transfer and overall performance of the system. The SS Corrugated Tubes are widely used for gas transportation without causing any leakage in the long pipelines. They are used in commercial, residential and industrial sectors for supply of propane.
Advantages of stainless steel corrugated heat exchanger tube
Stainless steel corrugated tube
SS 304 corrugated tube
SUS 316 corrugated tubes
Benefits & features of corrugated stainless steel tube
Table of Contents
Specifications of Stainless steel corrugated tube
Size Range | Thickness | Standard |
---|---|---|
6.35 To 50.8 mm OD | 0.50 TO 6.0 mm | ASTM A 213 / ASME SA213 |
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Material | Packing | Shapes |
SS 304,304L, 316, 316L | Ends Capped, Sleeved, Wooden Boxed | Coil tubing, Straight tubes |
Corrugated tube types
Stainless steel corrugated pipes
Stainless steel 304 corrugated tube
Corrugated tubes
SS corrugated tubes
Stainless steel corrugated heat exchanger tubes
Corrugated stainless steel tubes
Features of SS corrugated tubes
SS 304 corrugated tube tolerance chart
SIZE OD | OUTSIDE DIAMETER TOLERANCE | NOMINAL WALL THICKNESS | LENGTH TOLERANCE | WALL THICKNESS TOLERANCE | ||||
---|---|---|---|---|---|---|---|---|
(in) | (mm) | (in) | (mm) | (in) | (mm) | (in) | (mm) | (%) |
¾ | 19.1 | +/-0.005 | +/-0.13 | 0.065 | 1.65 | +⅛, -0 | +3.18, -0 | +/-10.0% |
1 | 25.4 | +/-0.005 | +/-0.13 | 0.065 | 1.65 | +⅛, -0 | +3.18, -0 | +/-10.0% |
1½ | 38.1 | +/-0.008 | +/-0.20 | 0.065 | 1.65 | +⅛, -0 | +3.18, -0 | +/-10.0% |
½ | 12.7 | +/-0.005 | +/-0.13 | 0.065 | 1.65 | +⅛, -0 | +3.18, -0 | +/-10.0% |
2 | 50.8 | +/-0.008 | +/-0.20 | 0.065 | 1.65 | +⅛, -0 | +3.18, -0 | +/-10.0% |
2½ | 63.5 | +/-0.010 | +/-0.25 | 0.065 | 1.65 | +⅛, -0 | +3.18, -0 | +/-10.0% |
3 | 76.2 | +/-0.010 | +/-0.25 | 0.065 | 1.65 | +⅛, -0 | +3.18, -0 | +/-10.0% |
4 | 101.6 | +/-0.015 | +/-0.38 | 0.083 | 2.11 | +⅛, -0 | +3.18, -0 | +/-10.0% |
6 | 152.4 | +/-0.030 | +/-0.76 | 0.109 | 2.77 | +1, -0 | +25.4, -0 | +/-10.0% |
SS welded corrugated tubes pressure rating
NOMINAL BORE (NB) | MIN. RADIUS BEND | SINGLE BRAID | WITHOUT BRAID | DOUBLE BRAID | ||||
---|---|---|---|---|---|---|---|---|
(MM) | STATIC (MM) | FLEXING (MM) | MAXIMUM PRESSURE KG/ CM2 | TEST PRESSURE KG/ CM2 | MAXIMUM PRESSURE KG/ CM2 | TEST PRESSURE KG/ CM2 | MAXIMUM PRESSURE KG/ CM2 | TEST PRESSURE KG/ CM2 |
25 | 90 | 200 | 50 | 75 | 2 | 3 | 80 | 120 |
32 | 110 | 250 | 40 | 60 | 1.5 | 2.3 | 64 | 96 |
40 | 130 | 250 | 30 | 45 | 1.5 | 2.3 | 48 | 92 |
50 | 175 | 350 | 28 | 42 | 1.0 | 1.5 | 44 | 66 |
6 | 25 | 100 | 100 | 150 | 4 | 6 | 160 | 240 |
10 | 40 | 150 | 90 | 135 | 4 | 6 | 144 | 216 |
12 | 50 | 200 | 80 | 120 | 3 | 4.5 | 128 | 192 |
16 | 50 | 200 | 70 | 105 | 3 | 4.5 | 112 | 168 |
20 | 70 | 200 | 64 | 96 | 2 | 3 | 102 | 153 |
65 | 200 | 410 | 24 | 36 | 1.0 | 1.5 | 38 | 57 |
80 | 205 | 450 | 18 | 27 | 1.0 | 1.5 | 28 | 42 |
100 | 230 | 560 | 16 | 24 | 0.8 | 1.2 | 26 | 39 |
125 | 280 | 660 | 12 | 18 | 0.6 | 0.9 | 20 | 30 |
150 | 320 | 816 | 10 | 15 | 0.6 | 0.9 | 16 | 24 |
200 | 435 | 1015 | 8 | 12 | 0.5 | 0.75 | 12 | 18 |
SUS 316 corrugated tubes chemical composition
class | c max | p max | mn max | s max | cr | ni | mo |
---|---|---|---|---|---|---|---|
tp 304L | 0035 | 0:04 | 2 | 0:03 | 18-20 | 8-13 | |
tp 316L | 0035 | 0:04 | 2 | 0:03 | 16-18 | 10-15 | 2-3 |
tp 304 | 0:08 | 0:04 | 2 | 0:03 | 18-20 | 8-11 | |
tp 316 | 0:08 | 0:04 | 2 | 0:03 | 16-18 | 10-14 | 2-3 |
Stainless steel corrugated pipes mechanical properties
Grades | % Age extension in 50 mm gauge length min | yield strength mpa, (min) | tensile strength mpa, (min) | hardness (max) | |
---|---|---|---|---|---|
bhn | rb | ||||
304L | 56 | 210 | 585 | 191 | 72 |
304 | 56 | 244 | 585 | 191 | 72 |
316 | 57 | 245 | 615 | 197 | 75 |
316L | 56 | 215 | 585 | 197 | 75 |
Applications of Stainless steel 304 corrugated tubes
Stainless steel corrugated heat exchanger tubes diameter
outside ⁄ inside diameter [mm] | Minimum bending radius [mm] | Nominal size of the sewer to be rehabilitated [DN] | Minimum manhole diameter [mm] |
---|---|---|---|
175 ⁄ 153 | 500 | 200 | 600 |
200 ⁄ 175 | 600 | 225 | 600 |
117 ⁄ 102 | 300 | 120 − 150 | 500 |
235 ⁄ 205 | 700 | 250 | 800 |
270 ⁄ 240 | 800 | 300 | 800 |
Corrugated stainless steel tubes equivalent
STANDARD | JIS | WERKSTOFF NR. | UNS | BS | AFNOR | GOST | EN |
---|---|---|---|---|---|---|---|
SS 304 | SUS 304 | 1.4301 | S30400 | 304S31 | Z7CN18‐09 | 08Х18Н10 | X5CrNi18-10 |
SS 316L | SUS 316L | 1.4404 / 1.4435 | S31603 | 316S11 / 316S13 | Z3CND17‐11‐02 / Z3CND18‐14‐03 | 03Ch17N14M3 / 03Ch17N14M2 | X2CrNiMo17-12-2 / X2CrNiMo18-14-3 |
SS 317L | SUS 317L | 1.4438 | S31703 | – | – | – | X2CrNiMo18-15-4 |
SS 321 | SUS 321 | 1.4541 | S32100 | – | – | – | X6CrNiTi18-10 |
SS 304L | SUS 304L | 1.4306 / 1.4307 | S30403 | 3304S11 | Z3CN18‐10 | 03Х18Н11 | X2CrNi18-9 / X2CrNi19-11 |
SS 310 | SUS 310 | 1.4841 | S31000 | 310S24 | – | 20Ch25N20S2 | X15CrNi25-20 |
SS 316 | SUS 316 | 1.4401 / 1.4436 | S31600 | 316S31 / 316S33 | Z7CND17‐11‐02 | – | X5CrNiMo17-12-2 / X3CrNiMo17-13-3 |
SS 347 | SUS 347 | 1.4550 | S34700 | – | – | 08Ch18N12B | X6CrNiNb18-10 |
SS 904L | SUS 904L | 1.4539 | N08904 | 904S13 | Z2 NCDU 25-20 | STS 317J5L | X1NiCrMoCu25-20-5 |