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Stainless Steel Instrumentation Tubing

SS 316 Instrument Tube Manufacturer in India

Stainless steel instrumentation tubing

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.

Stainless steel welded instrumentation tubing

Stainless steel welded 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.

Supplier of SS Seamless Instrumentation Tube as per ASME SA 213, Refer Specification

Specifications of Stainless Steel Instrumentation Tubing

 

 

 

 

 

 

 

 

 

 

 

 

Stainless steel instrumentation tubing specification

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 seamless instrumentation tubing

316 stainless steel seamless instrumentation tubing

ASTM A269 TP304 instrument tube

ASTM A269 TP304 instrument tube

SA 213 instrumentation tubing

SA 213 instrumentation tubing

Manufacturer of 254 SMO Instrument Tubing as per DIN/ ASTM/ UNS Standard

316 Stainless Steel Instrumentation Tubing Equivalent

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

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
Exporter of ASTM A269 TP304 Instrument Tube, Check CIF Price for Malaysia & KSA

SS Instrumentation Tubing Price List

Sizes Price in USD Price in Malaysia Price in Saudi Arabia
1/2" x 0.035 $4.37 MYR 20.56 SAR 16.39
1/2" x 0.049 $5.65 MYR 26.58 SAR 21.19
1/2" x 0.065 $6.45 MYR 30.35 SAR 24.19
1/4" x 0.035 $2.44 MYR 11.48 SAR 9.15
1/4" x 0.049 $3.30 MYR 15.52 SAR 12.38
1/4" x 0.065 $4.23 MYR 19.90 SAR 15.87
3/8" 0.035 $3.24 MYR 15.24 SAR 12.15
3/8" 0.049 $4.49 MYR 21.12 SAR 16.84
3/8" 0.065 $5.46 MYR 25.69 SAR 20.48
5/16" 0.035 $5.98 MYR 28.14 SAR 22.43

Stainless Steel Instrument Tube Installation

Stainless Steel Instrument Tube Installation

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
Manufacturer of Stainless Steel 304 Instrumentation Tubing, Know About Composition

Chemical Composition of ASTM A269 TP304 Instrument Tube

TP304 Stainless Steel

Cr 18.0-20.0%

C 0.08%

P 0.045%

Mn 2%

S 0.03%

Ni 8.0-11.0%

S 1%

TP316 Stainless Steel

Cr 16.0-18.0%

C 0.08%

P 0.045%

Mn 2%

S 0.03%

Ni 11.0-14.0%

S 1%

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

Temperature De-Rating Factors of SS Instrument Tubing

Temperature Stainless ASTM Steel A269
°F °C SS304 SS316
100 38 1 1
200 93 1 1
300 149 1 1
400 204 0.94 0.97
500 260 0.88 0.9
600 316 0.82 0.85
700 371 0.8 0.82
800 427 0.76 0.8
900 482 0.73 0.78
1000 538 0.69 0.77
1200 649 0.3 0.37

ASTM A269 Permissible Variation in Tubing OD and WT

Tube O.D. In. Permissible Variation in WT. % Permissible Variation in OD, In. (mm)
Up to 1/2 +/- 15% +/- 0.005 (0.13)
1/2 to 1 1/2, excl. +/- 10% +/- 0.005 (0.13)