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Stainless steel instrumentation tubing

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What is stainless steel instrumentation tubing?

Instrumentation tubes are used for attaching instruments to the central piping system, including machines, plumbing equipment, etc. Stainless Steel Instrumentation Tubing has a thin wall and are known for offering leakage-free operations. SS material is one of the most popular and versatile alloy grades and can be used in various industries. Depending on the media to which the Stainless Steel Instrument Tubing will come in contact with, the grade of the ss is decided.

For example, if the application requires an affordable ss tubing solution with good tensile strength and moderate corrosion resistance, Stainless Steel 304 Instrumentation Tubing is the best option. But if the tube is to be used in brine or marine applications, grade 316 will be a better choice. They are used adjacent to the piping switches, flow monitors, etc., which permits the pressure gauge combination. Instrumentation tubes can be used in complex processes to assist in the automation, safety and various other advanced features of the piping system.

SS 316 seamless instrument tubing manufacturer in India

Stainless steel instrumentation tubing manufacturer in India

What is bright annealed instrument tubing?

To get bring annealed SS Instrumentation Tube, annealing is performed in a controlled atmosphere. This controlled environment can include vacuum or inert gases. It helps to reduce the surface oxidation to a minimum which gives a brighter surface. Due to bright annealing, the SA 213 Instrumentation Tubing gets a high quality smooth, bright and clean surface. It acquires precision in dimensional tolerances and enhanced corrosion resistance and strength. When the tube is operated in a controlled environment, it yields finer grain size and better surface finish.

Supplier of Stainless steel 304 instrumentation tubing and SS instrumentation tube Gujarat

Stainless steel instrumentation tubing

Stainless steel instrumentation tubing

SS 316 seamless instrument tubing

SS 316 seamless instrument tubing

Stainless steel 304 instrumentation tubing

Stainless steel 304 instrumentation tubing

Difference between welded and seamless instrumentation tubing

The Seamless Instrumentation Tubing is manufactured through the extrusion process. They do not have any welded seams which reduces the chance of leakages. They are stronger and used for more critical procedures but are more expensive too.

The Welded Stainless Instrumentation Tubing is produced from a roll formed strip and they are welded to produce a tube. The welded tubes are more affordable, and they are available in longer continuous lengths. They are preferred for moderately corrosive economical applications.

Check sizes of Stainless steel instrument tubing and SA 213 instrumentation tubing as per DIN 2391/ EN 10216 standard

Table of Contents


Stainless steel instrumentation tubing manufacturer

Specifications of Stainless steel instrumentation tubing

Size Range Thickness Processing Service
3.18 - 63mm 0.5 - 8mm Cutting, Bending, Decoiling, Punching, Welding, Moulding
Pressure rating inish Outside Diameter
15 000 psig (1034 bar) 20Ra ID / 32Ra OD 6.00 mm to 60.00 mm
Grades Technique Standards
SS 304, 304L, , 316, 316L Cold drawn, Hot rolled,Cold rolled, Extrusion Tube ASTM A270, EN 10216-5, DIN 2391, ASTM A269,ASTM A213
High-quality Welded stainless instrumentation tubing in 304 and 316 grades for industrial and medical applications

SS instrumentation tube types

SS instrumentation tube

SS instrumentation tube

Stainless steel instrument tubing

Stainless steel instrument tubing

Welded stainless instrumentation tubing

Welded stainless instrumentation tubing

316 stainless steel instrumentation tubing

316 stainless steel instrumentation tubing

ASTM A269 TP304 instrument tube

ASTM A269 TP304 instrument tube

SA 213 instrumentation tubing

SA 213 instrumentation tubing

Buy 316 stainless steel instrumentation tubing and ASTM A269 TP304 instrument tube at factory price with MTC

Stainless steel instrument tubing sizes

TUBE O.D (M) TUBE WALL THICKNESS (MM)
0.071 0.089 1.00 1.25 1.50 1.65 2.00 2.11 2.41 2.50 2.77 3.00 3.05
12 3000 3400 4400 5300 5900 6800 7200
16 2500 3200 3900 4300 5300 5700 6600 6800
18 2800 3400 3800 4700 5000 5800 6000 6700
3 10800 13800 15300
4 7900 10100 11500 14400
5 5000 6500 7400 9400 11500 12700
8 4700 5800 6800 8400 9300
10 3700 4200 5300 6500 7300
20 2500 3000 3400 4200 4400 5100 5300 6000
22 2300 2800 3000 3800 4000 4600 4800 5400
25 2000 2400 2700 3300 3500 4000 4200 4700 5100 5200

SS 316 seamless instrument tubing tolerance

OD mm   Wall thickness % Tolerances OD, mm
6.35-25.4 +/-10 +/-0.08
31.75 +/-10 +/-0.15

Pressure rating of Stainless steel 304 instrumentation tubing

O.D. (Decimal) O.D. (Fraction) Nominal Tube Wall Thickness (Inches)
0.028 0.035 0.049 0.058 0.065 0.072 0.083 0.095 0.109 0.120
0.500 1/2 1527 1909 2673 3164 3545 3927 4527 5182 5945 6545
5040 6300 8820 10440 11700 12960 14940 17100 19620 21600
0.563 9/16 1356 1695 2374 2810 3149 3488 4021 4602 5280 5813
4476 5595 7833 9272 10391 11510 13268 15187 17425 19183
0.625 5/8 1222 1527 2138 2531 2836 3142 3622 4145 4756 5236
4032 5040 7056 8352 9360 10368 11952 13680 15696 17280
0.688 11/16 1110 1387 1942 2299 2577 2854 3290 3766 4321 4757
3663 4578 6410 7587 8503 9419 10858 12427 14259 15698
0.750 3/4 1018 1273 1782 2109 2364 2618 3018 3455 3964 4364
3360 4200 5880 6960 7800 8640 9960 11400 13080 14400
0.875 7/8 873 1091 1527 1808 2026 2244 2587 2961 3397 3740
2880 3600 5040 5966 6686 7406 8537 9771 11211 12343
1.000 1 764 955 1336 1582 1773 1964 2264 2591 2973 3273
2520 3150 4410 5220 5850 6480 7470 8550 9810 10800
0.125 1/8 6109 7636 10691
20160 25200 35280
0.188 3/16 4062 5077 7108
13404 16755 23457
0.250 1/4 3055 3818 5345 6327 7091
10080 12600 17640 20880 23400
0.313 5/16 2440 3050 4270 5054 5664 6274 7232
8051 10064 14089 16677 18690 20703 23866
0.375 3/8 2036 2545 3564 4218 4727 5236 6036 6909 7927 8727
6720 8400 11760 13920 15600 17280 19920 22800 26160 28800
0.438 7/16 1743 2179 3051 3611 4047 4483 5168 5915 6787 7472
5753 7192 10068 11918 13356 14795 17055 19521 22397 24658
1.125 1 1/8 679 848 1188 1406 1576 1745 2012 2303 2642 2909
2240 2800 3920 4640 5200 5760 6640 7600 8720 9600
1.250 1 1/4 611 764 1069 1265 1418 1571 1811 2073 2378 2618
2016 2520 3528 4176 4680 5184 5976 6840 7848 8640
1.500 1 1/2 509 636 891 1055 1182 1309 1509 1727 1982 2182
1680 2100 2940 3480 3900 4320 4980 5700 6540 7200
1.750 1 3/4 436 545 764 904 1013 1122 1294 1481 1699 1870
1440 1800 2520 2983 3343 3703 4269 4886 5606 6171
2.000 2 382 477 668 791 886 982 1132 1295 1486 1636
1260 1575 2205 2610 2925 3240 3735 4275 4905 5400

Welded stainless instrumentation tubing weight chart

Nominal Pipe Sizes Wall Thickness Weight Outside Diameter Weight
Schedule Inch MM Lbs/feet Inch MM kg/Meter
1/2 40 STD 0.109 2.769 0.851 0.840 21 1.268
80 STD 0.147 3.734 1.088 1.621
1 1/2 40 STD 0.145 3.683 2.718 1.900 48 4.048
80 STD 0.200 5.080 3.361 5.409
2 40 STD 0.154 3.912 3.653 2.375 60 5.441
80 STD 0.218 5.537 5.022 7.480
2 1/2 40 STD 0.203 5.516 5.793 2.875 73 8.629
80 STD 0.276 7.010 7.661 11.411
3 40 STD 0.216 5.486 7.576 3.500 89 11.284
80 STD 0.300 7.620 10.253 15.272
4 0.237 6.020 10.790 4.500 114 16.073
0.337 8.560 14.983 22.318
6 0.188 4.775 12.924 6.625 168 19.252
0.203 5.516 13.923 20.739
0.219 5.563 14.983 22.318
0.250 6.350 17.021 25.354
40 STD 0.280 7.112 18.974 58.263
0.312 7.925 21.036 31.334
0.375 9.525 25.031 37.285
80 XHY 0.432 10.973 28.573 42.561
0.500 12.700 32.708 48.719
3/4 40 STD 0.113 2.870 1.131 1.050 27 1.684
80 STD 0.154 3.912 1.474 2.195
1 40 STD 0.133 3.378 1.679 1.315 33 2.501
80 STD 0.179 4.547 2.172 3.325
1 1/4 40 STD 0.140 3.556 2.273 1.660 42 3.385
80 STD 0.191 4.851 2.997 4.464
8 0.188 4.775 16.940 8.625 219 25.233
0.203 5.156 18.259 27.198
0.219 5.563 19.661 29.286
20 0.250 6.350 22.361 33.308
30 0.277 7.036 24.696 36.786
40 0.322 8.179 28.554 42.352
0.375 9.525 33.041 49.216
60 0.406 10.312 35.638 53.085
80 XHY 0.500 12.700 43.388 64.627
10 0.188 4.775 21.207 10.750 273 31.588
0.219 5.563 24.631 36.689
20 0.250 6.350 28.035 41.759
30 0.307 7.798 34.240 51.002
0.344 8.738 38.231 56.946
40 STD 0.365 9.271 40.483 63.301
0.438 11.125 48.238 71.852
60 XHY 0.500 12.700 54.735 81.530
80 0.594 15.088 64.429 95.969
12 0.188 4.775 25.222 12.750 324 37.570
0.219 5.563 29.309 43.657
0.250 6.350 33.375 49.713
0.281 7.137 37.420 55.739
0.312 7.925 41.445 61.735
0.375 9.525 49.562 73.824
0.406 10.312 53.525 79.727
0.500 12.700 65.415 97.438
0.562 14.275 73.154 108.966
14 0.188 4.775 27.732 14.000 356 41.308
0.219 5.563 32.233 48.012
20 0.250 6.350 36.713 54.685
0.281 7.137 41.172 61.327
0.312 7.925 45.611 67.939
STD 0.375 9.525 54.568 81.281
40 0.438 11.125 63.441 94.498
XHY 0.500 12.700 72.090 107.381
0.625 15.875 89.278 132.983
16” 0.188 4.775 21.748 16.000 406 47.290
0.219 5.563 36.910 54.980
10 0.250 6.350 42.053 62.639
0.281 7.137 47.174 70.268
20 0.312 7.925 52.275 77.866
0.344 8.738 57.519 85.677
30

STD

 0.375 9.525 62.578 93.213
0.438 11.125 72.797 108.433
40

XHY

 0.500 12.700 82.770 123.289
18 0.219 5.563 41.588 18.000 457 61.948
0.250 6.350 47.393 70.593
0.281 7.137 53.176 79.208
20 0.312 7.925 58.939 87.792
STD 0.375 9.525 70.588 105.144
30 0.438 11.125 82.152 122.369
XHY 0.500 12.700 93.450 139.198
40 0.562 14.275 104.666 155.904
0.625 15.875 115.978 172.754
20 0.250 6.350 52.733 20.000 508 78.547
0.282 7.163 59.386 88.458
0.312 7.925 65.604 97.719
20 STD 0.375 9.525 78.598 117.075
0.438 11.125 91.508 136.305
30 XHY 0.500 12.700 104.130 155.106
40 0.594 15.088 123.110 183.378
0.625 15.875 129.328 192.640
0.688 17.475 141.901 211.368
24 0.250 6.350 63.413 24.000 610 94.456
0.281 7.137 71.183 106.029
0.312 7.925 18.932 117.573
20 STD 0.375 9.525 64.618 140.938
0.438 11.125 110.219 164.176
XHY 0.500 12.700 125.490 186.923
0.625 15.875 156.028 232.410
40 0.688 17.475 171.293 255.148
0.750 19.050 186.233 277.401
30 0.250 6.350 79.433 30.000 762 118.318
0.281 7.137 89.189 132.851
10 0.312 7.925 98.925 147.353
STD 0.375 9.525 118.648 176.731
0.438 11.125 138.286 205.983
20 XHY 0.500 12.700 157.530 234.647
30 0.625 15.875 196.078 292.066
0.688 17.475 215.380 320.817
0.750 19.050 234.293 348.988
36 0.250 6.350 95.453 36.000 914 142.180
0.281 7.137 107.196 159.672
10 0.312 7.925 118.918 177.133
STD 0.375 9.525 142.678 215.525
0.438 11.125 166.353 247.790
20 XHY 0.500 12.700 198.570 282.372
0.625 15.875 236.128 351.723
0.688 17.475 259.467 386.487
0.750 19.050 282.353 420.576
42 0.312 7.925 138.911 42.000 1067 206.914
STD 0.375 9.525 166.708 248.319
XHY 0.500 12.700 221.610 33.097
0.750 19.050 330.413 492.163
48 STD 0.375 9.525 190.738 48.000 1219 284.112
0.438 11.125 222.487 331.404
XHY 0.500 12.700 253.650 377.822
0.750 19.050 378.473 563.750
0.875 22.225 440.383 655.969

Chemical composition of ASTM A269 TP304 instrument tube

Grade Chromium Carbon Phosphorus Manganese Sulfur Nickel Silicon Molybdenum
TP304L 18.0-20.0 0.035 0.045 2 0.03 8.0-13.0 1
TP304 18.0-20.0 0.08 0.045 2 0.03 8.0-11.0 1
TP316 16.0-18.0 0.08 0.045 2 0.03 11.0-14.0 1 2.0-3.0
TP316L 16.0-18.0 0.035 0.045 2 0.03 10.0-14.0 1 2.0-3.0

SA 213 instrumentation tubing mechanical properties

class tensile strength mpa, (min) Yield strength mpa, (min) Age extension in 50 mm gauge length min Hardness (max)
bhn rb
304 585 244 56 191 72
316 615 245 57 197 75
304L 585 210 56 191 72
316L 585 215 56 197 75

316 stainless steel instrumentation tubing equivalent

Grade Werkstoff Unified Numbering System
304L 1.4306 S30403
316L 1.4404 S31603
316 1.4436 S31600
304 1.4301 S30400