• An ISO 9001 and ISO 14001 Certified Company
Tubotech Stainless Inc

Stainless Steel U Tube Manufacturer in India

Stainless steel U tube

What is Stainless Steel U Tube?

The Stainless Steel U Tube is typically used for heat exchangers. They are chosen for applications that involve heat and elevated pressure levels. The SS Welded U Tubes can be exactly customized according to the drawings and specifications given by the client. Depending on the exact grade of the Stainless Steel U Bend Tube, they can resist corrosion and display yield strength.

They are strategically used in critical fields like nuclear and petrochemical machine building. The Stainless Steel U Bend Tube For Heat Exchanger can also be used in hot oil systems or stem condensing. It helps to seal the module, and as a result, the water will not decompose, preventing the foul odor. Tubotech is Oldest Stainless Steel U Tube Manufacturer in India As Per ASTM A688 and TEMA ‘RCB’ 2.3

SS Welded U Tube vs Seamless U Tube

Heat exchangers and other applications utilize two types of products: SS Welded U Tubes and Seamless U Tubes with the difference in manufacturing and properties. Welded U Tubes are produced from stainless steel sheets through rolling and welding methods accompanied by heat treatment. They are relatively inexpensive, give a good surface finish, and are appropriate for moderate pressure systems. Welded tubes are more flexible, and the best for non-critical applications where they can enjoy a price advantage.

Manufacturing Seamless U Tubes are through extrusion technique so that Welding is not required. They offer better strength, endurance and relieve pressure alongside offering better resisting capacity to corrosion. They are favored for high pressure, high temperature and critical uses in power plant and petro chemical and oil industries.

Table of Contents


Specification of stainless steel u tube

SS U Bend Tube Heat Exchanger Supplier in Mumbai As Per ASTM A688 and TEMA ‘RCB’ 2.3

Specifications of Stainless Steel U Tube

Stainless steel U tubes specification

 

 

 

Stainless Steel U Tube Sizes

Stainless Steel U Tube Sizes

  • 6.35 mm OD to 273 mm OD
SS Welded U Tubes OD

SS Welded U Tubes OD

  • 9.52 mm O.D to 50.80 mm O.D

 

 

SS 316ti U Bend Tube Thickness

SS 316ti U Bend Tube Thickness

  • 0.7 mm to 3.68 mm
Stainless Steel 316 U Bend Tube Width

Stainless Steel 316 U Bend Tube Width

  • 500 - 2500 Millimetre

 

 

SS 316ti U Bend Tubes Bending Radius 

SS 316ti U Bend Tubes Bending Radius 

  • 1.5*OD To 1500mm
Stainless Steel U Shaped Tubes Length

Stainless Steel U Shaped Tubes Length

  • Upto 22 Meter or Custom cut sizes

 

 

SA 213 TP304 Welded U Tubes Standards

SA 213 TP304 Welded U Tubes Standards

  • ASTM A213, ASME SA213, ASTM A-688, TEMA ‘RCB’ 2.3
Stainless Steel U Bend Tubes HSN Code

Stainless Steel U Bend Tubes HSN Code

  • HSN 74121000

 

 

Stainless Steel 316 U Bend Tube Types 

Stainless Steel 316 U Bend Tube Types 

  • Welded
  • Seamless
Types of Packing for SS Welded U Tube

Types of Packing for SS Welded U Tube

  • Each tubes packed in separate foil
  • Steel crates
  • Wooden boxes

 

 

304 Stainless Steel U Tube Applications

304 Stainless Steel U Tube Applications

  • Condensers
  • Sea water equipments
  • Gas processing
  • Chemical equipments
  • Off-Shore oil drilling
Stainless Steel 316 U Bend Tube Testing

Stainless steel 316 U bend tube testing

  • Hardness test
  • Flattening test
  • Flaring test
  • Flange

Buy Stainless Steel U Shaped Tubes in 304 /316/304L/316L in Custom Sizes According to ASTM A213

Stainless Steel U Bend Tube Dimensions

U Bend Tube Length
OD WT LENGTH
12.70 mm 1.22 mm in lengths up to 20 m (65.62 ft)
19.05 mm 1.65 mm
25.40 mm 2.11 mm
38.10 mm 2.64 mm

Get Stainless Steel Seamlesss U Bend Tube for Heat Exchangers Online and Save Your Cost. Refer All Types

SS U Bend Tube Types

Stainless steel U seamless tube

Stainless steel U seamless tube

SS welded U tubes

SS welded U tubes

Stainless steel U bend annealed tubes

Stainless steel U bend annealed tubes

U Bend Tube Heat Exchanger

U Bend Tube Heat Exchanger

U-Bend mechanical tubing

U-Bend mechanical tubing

Stainless steel U shaped tubes

Stainless steel U shaped tubes

SS 316ti U bend round tubes

SS 316ti U bend round tubes

Stainless steel durable U tube

Stainless steel durable U tube

U Bend Steel Tubing

U Bend Steel Tubing

Chemical Composition of U-Bend Tubes

304 Stainless Steel

C 0.08%

S 0.030%

Cr 18.0-20.0%

Mn 2.0%

Si 0.75%

P 0.045%

Ni 8.0-10.5%

316 Stainless Steel

C 0.08%

S 0.030%

Cr 16.00 - 18.00%

Mn 2.0%

Si 1.0%

P 0.045%

Ni 11.00 - 14.00%

Stainless Steel U Shaped Tubes Mechanical Properties

Grade Temperure Yield Strength Heat Elongation Tensile Strength
º F(º C) Ksi (MPa), Min. Treatment Ksi (MPa), Min.
TP304L 1900 (1040) 25(170) Solution 35 70(485)
TP304 1900 (1040) 30(205) Solution 35 75(515)
TP316 1900(1040) 30(205) Solution 35 75(515)
TP316L 1900(1040) 25(170) Solution 35 70(485)

SS 316TI U Bend Tubes Tolerance

Tube Length Tolerance

Leg Length, Ft (M) Plus Tolerance, In (Mm)
<= 20 (6) 1/8  (3.2)
>20(6), <=30(9) 5/32  (4.0)
>30 (9), <=40 (12.2) 3/16  (4.8)

Squareness Of Ends Tolerance

Tube OD, In, (Mm) Tolerance, In, (Mm)
<=5.8 (15.9) 0.010 (0.25)
>5.8 (15.9), <=1 (25.4) 0.016 (0.4)
Exporter of 304 and 316 Welded U Bend Tubing With 100% Leak & Hydrostatic Test

Testing of SS U Bend Tube

Testing of SS U Bend Tube
  • Tensile Strength
  • Reverse bending Test
  • Flattening Test
  • Flare Test
  • Flange Test
  • Hydrostatic Test
  • Pneumatic Test
  • Eddy Current Test
  • Hardness Test
  • Eddy Current Test
  • Dimensional Test

Stainless Steel Welded U Tubes Equivalent

- Japan Russia North America United Kingdom France Russia Europe
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
Offer SA 213 TP304 U Tubes Produce From Best Raw Materials, Refer Gauge Chart

SA 213 TP304 U Bend Steel Tubing Gauge Chart

Imperial Size AWG/SWG/BWG
OD WT
inch mm GaugeNo. AWG SWG BWG
1/4 6.35 inches mm inches mm inches mm
5/16 7.94 10 0.1019 2.59 0.128 3.25 0.134 3.403
1-1/4 31.75 17 0.0453 1.15 0.056 1.42 0.058 1.472
1-1/2 38.1 18 0.0403 1.02 0.048 1.22 0.049 1.244
3/4 19.05 14 0.0641 1.63 0.08 2.03 0.083 2.108
3/8 9.52 11 0.0907 2.3 0.116 2.95 0.12 3.047
1-3/4 44.45 19 0.0359 0.912 0.04 1.02 0.042 1.066
7/8 22.22 15 0.0571 1.45 0.072 1.83 0.072 1.828
2 50.8 20 0.032 0.813 0.036 0.914 0.035 0.839
1 25.4 16 0.0508 1.29 0.064 1.63 0.065 1.65
1/2 12.7 12 0.0808 2.05 0.104 2.64 0.109 2.768
5/8 15.88 13 0.072 1.83 0.092 2.34 0.095 2.412
2-1/2 63.5

-

-

-

-

-

-

-

3 76.2

-

-

-

-

-

-

-

SS U Tube Manufacturing Process Flow Chart

SS U Tube Manufacturing Process Flow Chart

 

U Shaped Steel Tube Sizes

Wall thickness in mm. 0.6 0.5 0.7 1 0.8 1.6 1.2 2.6 2 3.2 3 3.6
O.D. in mm. Weight in kg/meter
9.52 0.134 0.112 0.154 0.213 0.174 0.317 0.249 – – – – –
6 0.081 0.069 0.093 0.125 0.104 0.176 0.144 – – – – –
10 0.141 0.119 0.163 0.225 0.184 0.336 0.264 – – – – –
14 0.201 0.169 0.233 0.325 0.264 0.496 0.384 – – – – –
12.7 0.182 0.153 0.21 0.293 0.238 0.444 0.345 – – – – –
15.87 0.229 0.192 0.266 0.372 0.301 0.571 0.44 – 0.694 – – –
25 0.366 0.306 0.425 0.6 0.484 0.936 0.714 1.456 1.15 1.744 1.65 1.926
19 0.276 0.231 0.32 0.45 0.364 0.696 0.534 1.066 0.85 1.264 1.2 –
25.4 0.372 0.311 0.432 0.61 0.492 0.952 0.726 1.482 1.17 1.776 1.68 1.962
38 – – – – – 1.456 1.104 2.301 1.8 2.784 2.625 3.096
31.8 – – – – – 1.208 0.918 1.898 1.49 2.288 2.16 2.538
50.8 – – – – – 1.968 1.488 3.133 2.44 3.808 3.585 4.248
44.5 – – – – – 1.716 1.299 2.724 2.125 3.304 3.113 3.681
76.1 – – – – – 2.98 – 4.778 3.705 5.832 5.483 6.525
63.5 – – – – – 2.476 – 3.959 3.075 4.824 4.538 5.391
101.6 – – – – – 4 – 6 4.98 7,872 7 8.82

Stainless Steel Seamless U Tube Application

Stainless Steel Seamless U Tube Application
  • Heat Exchanger
  • Pre-heaters
  • Condensers
  • Power Plant
  • Airfin Cooler
  • Nuclear Power Plant
  • Petrochemical & Refinery
  • Transformer

U Bend Steel Tubing Weight Chart

Wall thickness in mm 2 0.5 0.7 0.8 1 1.2 3.6 1.6 0.6 2.6 3.2 3
Outer Diameter in mm. Weight in kg/meter
15.87 0.694 0.192 0.266 0.301 0.372 0.44 0.571 0.229
9.52 0.112 0.154 0.174 0.213 0.249 0.317 0.134
10 0.119 0.163 0.184 0.225 0.264 0.336 0.141
44.5 2.125 1.299 3.681 1.716 2.724 3.304 3.113
12.7 0.153 0.21 0.238 0.293 0.345 0.444 0.182
25.4 1.17 0.311 0.432 0.492 0.61 0.726 1.962 0.952 0.372 1.482 1.776 1.68
6 0.069 0.093 0.104 0.125 0.144 0.176 0.081
76.1 3.705 6.525 2.98 4.778 5.832 5.483
63.5 3.075 5.391 2.476 3.959 4.824 4.538
19 0.85 0.231 0.32 0.364 0.45 0.534 0.696 0.276 1.066 1.264 1.2
14 0.169 0.233 0.264 0.325 0.384 0.496 0.201
25 1.15 0.306 0.425 0.484 0.6 0.714 1.926 0.936 0.366 1.456 1.744 1.65
38 1.8 1.104 3.096 1.456 2.301 2.784 2.625
31.8 1.49 0.918 2.538 1.208 1.898 2.288 2.16
50.8 2.44 1.488 4.248 1.968 3.133 3.808 3.585
101.6 4.98 8.82 4 6 7,872 7

SS U Bend Tube Heat Exchanger Pressure Rating

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

Stainless Steel U Pipe Thickness Chart

Gauge Thickness in Inch Typical Value in Inch
11 0.112 to 0.122 0.12
17 0.053 to 0.058 0.058
19 0.038 to 0.042 0.042
20 0.031 to 0.035 0.035
22 0.025 to 0.029 0.028
9 0.140 to 0.150 0.148
10 0.126 to 0.136 0.134
18 0.044 to 0.049 0.049
15 0.066 to 0.074 0.072
16 0.060 to 0.065 0.065
12 0.101 to 0.111 0.109
13 0.087 to 0.097 0.095
8 0.157 to 0.167 0.165
14 0.075 to 0.085 0.083
7 0.175 to 0.185 0.18

Advantages & Disadvantages of U Bend Tube Heat Exchanger

U-bend tube heat exchangers are greatly appreciated due to their smaller size with large heat transfer coefficients, that are ideal for tight spaces. They enable heat flow freely and can be installed in various ways. Nevertheless, their sharp angles may cause problems in cleaning and maintenance and welding joints may be dangerous under long-term loading. At the same time they have been widely used in severe service and high pressure and temperature conditions.

Advantages:

  • Compact design
  • High-pressure and high-temperature suitability
  • Flexible installation
  • Efficient heat transfer

Disadvantages:

  • Welding stress risk
  • Limited flow configurations
  • Difficult cleaning and maintenance

Stainless Steel U Tube Wall Thickness

Gauge Typical Value in Inch Thickness Range in Inch
20 0.035 0.031 - 0.035
17 0.058 0.053 - 0.058
19 0.042 0.038 - 0.042
11 0.12 0.112 - 0.122
18 0.049 0.044 - 0.049
9 0.148 0.140 - 0.150
16 0.065 0.060 - 0.065
22 0.028 0.025 - 0.029
15 0.072 0.066 - 0.074
10 0.134 0.126 - 0.136
14 0.083 0.075 - 0.085
7 0.18 0.175 - 0.185
13 0.095 0.087 - 0.097
8 0.165 0.157 - 0.167
12 0.109 0.101 - 0.111

Countrywise Shipping Time Of SS U Tubing

Price Variation 5%
Country Time in Days
Libya 45-60
Turkey 21
Germany 20
Nigeria 30
Poland 45
Australia 21
Sweden 45
Finland 45
Norway 45
Bangladesh Dec-15
Bhutan 7
Kazakhstan 45-60
Vietnam 10
Nepal 7
Thailand 7
Cambodia 9
Russia 20

U Shaped Tube Stock For Immediate Disapatch

As Stainless Steel U Tube Manufacturer in India, Keep Ready Stock Of U Bend Tube For Urgent Requirement

Stainless Steel U Tubing for Heat Exchanger

Stainless Steel U Tubing for Heat Exchanger

Stainless Steel U Bend Boiler Tube

Stainless Steel U Bend Boiler Tube

Seamless Stainless Steel U Bend Tube

Seamless Stainless Steel U Bend Tube

Surface Polishing Stainless Steel Bend Pipe

Surface Polishing Stainless Steel Bend Pipe

Stainless Steel Bend Tube for Car Exhaust

Stainless Steel Bend Tube for Car Exhaust

Stainless Steel U Tube with Two Bends

Stainless Steel U Tube with Two Bends