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+91 97695 84950

[email protected]

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U-Bent Tubes Manufacturer, Supplier & Exporter in India

U-Bent Tubes are precision-engineered heat transfer tubes specifically designed for shell and tube heat exchangers, condensers, boilers, economizers, and pressure vessel applications. Their U-shaped configuration allows fluid to flow through a single continuous tube, eliminating the need for additional return fittings and reducing potential leakage points. At Moksh Tubes & Fittings LLP, we manufacture and supply premium-quality U-Bent Tubes in Stainless Steel, Carbon Steel, Alloy Steel, Duplex & Super Duplex Stainless Steel, Nickel Alloys, Titanium, and Copper Alloys, conforming to ASTM, ASME, EN, DIN, and BS standards.

Overview | Specifications | Size & Weight | Grades | Applications | Mechanical Properties | Why Choose Us | FAQ

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U-Bent Tubes Specifications

Category Details
Material Stainless Steel, Carbon Steel, Alloy Steel, Duplex & Super Duplex Steel, Nickel Alloys, Titanium, Copper Alloys
Grades ASTM A179, ASTM A192, ASTM A210, ASTM A213, ASTM A268, ASTM A556, EN 10216-2, BS 3059
Outer Diameter (OD) 6 mm to 76.2 mm
Wall Thickness 0.5 mm to 8 mm
Leg Length Up to 12 meters
Bend Radius Minimum 1.5 × OD or as specified
Surface Finish Bright Annealed, Pickled, Passivated, Polished
Types Seamless U-Bent Tubes, Welded U-Bent Tubes
Standards ASTM, ASME, EN, DIN, BS
Applications Heat Exchangers, Boilers, Condensers, Economizers, Pressure Vessels

U-Bent Tubes Weight Chart

Available in Schedule 5C, Schedule 10C, Schedule 40, Schedule 80, Schedule 160, and Schedule XXC dimensions.

NB (mm) Inches OD (mm) Sch 5C
Wt (kg/m)		 Sch 10C
Wt (kg/m)		 Sch 40C
Wt (kg/m)		 Sch 80C
Wt (kg/m)		 Sch 160C
Wt (kg/m)		 Sch XXC
Wt (kg/m)
3 1/8 10.3 0.2 / 0.01 0.3 / 0.02 0.4 / 0.03 0.6 / 0.04 0.8 / 0.06 1.0 / 0.07
6 1/4 13.7 0.2 / 0.02 0.3 / 0.03 0.4 / 0.04 0.6 / 0.06 0.8 / 0.08 1.0 / 0.10
10 3/8 17.1 0.2 / 0.03 0.3 / 0.04 0.4 / 0.06 0.6 / 0.08 0.8 / 0.11 1.0 / 0.14
15 1/2 21.3 0.2 / 0.04 0.3 / 0.06 0.4 / 0.08 0.6 / 0.12 0.8 / 0.16 1.0 / 0.20
20 3/4 26.7 0.2 / 0.06 0.3 / 0.09 0.4 / 0.12 0.6 / 0.17 0.8 / 0.22 1.0 / 0.28
25 1 33.4 0.2 / 0.08 0.3 / 0.12 0.4 / 0.17 0.6 / 0.25 0.8 / 0.33 1.0 / 0.41
32 1 1/4 42.2 0.2 / 0.13 0.3 / 0.19 0.4 / 0.26 0.6 / 0.38 0.8 / 0.50 1.0 / 0.62
40 1 1/2 48.3 0.2 / 0.16 0.3 / 0.24 0.4 / 0.32 0.6 / 0.48 0.8 / 0.63 1.0 / 0.78
50 2 60.3 0.2 / 0.24 0.3 / 0.36 0.4 / 0.47 0.6 / 0.70 0.8 / 0.93 1.0 / 1.17
65 2 1/2 73.0 0.2 / 0.33 0.3 / 0.49 0.4 / 0.65 0.6 / 0.97 0.8 / 1.29 1.0 / 1.63
80 3 88.9 0.2 / 0.47 0.3 / 0.70 0.4 / 0.93 0.6 / 1.40 0.8 / 1.87 1.0 / 2.36
100 4 114.3 0.2 / 0.77 0.3 / 1.14 0.4 / 1.52 0.6 / 2.27 0.8 / 3.04 1.0 / 3.82
125 5 141.3 0.2 / 1.17 0.3 / 1.72 0.4 / 2.30 0.6 / 3.42 0.8 / 4.58 1.0 / 5.76
150 6 168.3 0.2 / 1.63 0.3 / 2.41 0.4 / 3.23 0.6 / 4.79 0.8 / 6.38 1.0 / 8.02
200 8 219.1 0.2 / 2.73 0.3 / 4.03 0.4 / 5.40 0.6 / 8.01 0.8 / 10.65 1.0 / 13.33
250 10 273.1 0.2 / 4.17 0.3 / 6.15 0.4 / 8.23 0.6 / 12.23 0.8 / 16.27 1.0 / 20.35
300 12 323.9 0.2 / 5.94 0.3 / 8.76 0.4 / 11.71 0.6 / 17.45 0.8 / 23.23 1.0 / 29.05
350 14 355.6 0.2 / 7.21 0.3 / 10.63 0.4 / 14.23 0.6 / 21.20 0.8 / 28.26 1.0 / 35.35
400 16 406.4 0.2 / 9.29 0.3 / 13.70 0.4 / 18.35 0.6 / 27.37 0.8 / 36.46 1.0 / 45.59
450 18 457.2 0.2 / 11.52 0.3 / 17.00 0.4 / 22.78 0.6 / 34.00 0.8 / 45.33 1.0 / 56.70
500 20 508.0 0.2 / 13.88 0.3 / 20.50 0.4 / 27.50 0.6 / 41.10 0.8 / 54.75 1.0 / 68.45
600 24 609.6 0.2 / 18.93 0.3 / 28.00 0.4 / 37.50 0.6 / 56.05 0.8 / 74.68 1.0 / 93.95

U-Bent Tubes Size Chart

Schedule 5C

NPS NB (mm) OD (mm) WT (mm) ID (mm) Weight (kg/m)
1/2 15 21.3 1.65 18.0 0.84
3/4 20 26.7 1.65 23.4 1.03
1 25 33.4 1.65 30.1 1.3
1 1/4 32 42.2 1.65 38.9 1.65
1 1/2 40 48.3 1.65 44.9 1.91
2 50 60.3 1.65 56.0 2.4
2 1/2 65 73.0 2.11 68.8 3.69
3 80 88.9 2.11 84.7 4.51
4 100 114.3 2.11 110.1 5.84
5 125 141.3 2.77 135.8 9.47
6 150 168.3 2.77 162.8 11.32
8 200 219.1 2.77 213.6 14.79
10 250 273.1 3.4 266.3 22.63
12 300 323.9 3.56 317.0 31.25
14 350 355.6 3.96 347.7 36.96
16 400 406.4 4.19 398.0 41.56
18 450 457.2 4.57 448.1 49.42
20 500 508.0 5.54 496.9 59.25
22 550 558.8 5.54 547.7 65.97
24 600 609.6 5.54 598.5 82.47

Schedule 10C

NPS NB (mm) OD (mm) WT (mm) ID (mm) Weight (kg/m)
1/2 15 21.3 2.11 17.1 1.04
3/4 20 26.7 2.11 22.5 1.37
1 25 33.4 2.77 27.9 2.17
1 1/4 32 42.2 2.77 36.7 2.8
1 1/2 40 48.3 2.77 42.8 3.25
2 50 60.3 2.77 54.8 4.12
2 1/2 65 73.0 3.05 66.9 5.6
3 80 88.9 3.05 82.8 6.9
4 100 114.3 3.05 108.2 9.01
5 125 141.3 3.4 134.5 12.28
6 150 168.3 3.4 161.5 14.69
8 200 219.1 3.76 211.6 20.25
10 250 273.1 4.19 264.7 27.86
12 300 323.9 4.57 314.8 36.27
14 350 355.6 4.78 346.0 41.15
16 400 406.4 4.78 396.8 47.14
18 450 457.2 4.78 447.6 53.05
20 500 508.0 5.54 496.9 66.75
22 550 558.8 5.54 547.7 73.46
24 600 609.6 6.35 596.9 86.78

Schedule 40C

NPS NB (mm) OD (mm) WT (mm) ID (mm) Weight (kg/m)
1/8 3 10.3 1.73 6.84 ~0.37
1/4 6 13.7 2.24 9.22 ~0.84
1/2 15 21.3 2.77 15.7 ~1.27
3/4 20 26.7 2.87 21.0 ~1.69
1 25 33.4 3.38 26.6 ~2.50
1 1/4 32 42.2 3.56 35.1 ~3.39
1 1/2 40 48.3 3.68 41.0 ~4.05
2 50 60.3 3.91 52.5 ~5.44
2 1/2 65 73.0 5.16 62.7 ~8.63
3 80 88.9 5.49 78.9 ~11.3
3 1/2 90 101.6 5.74 90.1 ~13.6
4 100 114.3 6.02 102.3 ~16.1
5 125 141.3 6.55 128.2 ~21.8
6 150 168.3 7.11 154.1 ~28.3
8 200 219.1 8.18 202.7 ~42.6
10 250 273.0 9.27 254.5 ~60.3
12 300 323.8 10.31 303.2 ~79.7
14 350 355.6 11.13 333.4 ~94.6
16 400 406.4 12.70 381.0 ~123.3
18 450 457.2 14.27 428.7 ~155.8
20 500 508.0 15.09 477.8 ~183.4
24 600 610.0 17.48 575.0 ~255.4

Schedule 80C

NPS NB (mm) OD (mm) WT (mm) ID (mm) Weight (kg/m)
1/8 3 10.3 2.41 5.48 ~0.47
1/4 6 13.7 3.02 7.66 ~1.06
1/2 15 21.3 3.73 13.84 ~1.61
3/4 20 26.7 3.91 18.88 ~2.34
1 25 33.4 4.55 24.3 ~3.37
1 1/4 32 42.2 4.85 32.5 ~4.66
1 1/2 40 48.3 5.08 38.1 ~5.57
2 50 60.3 5.54 49.2 ~7.57
2 1/2 65 73.0 7.01 59.0 ~11.3
3 80 88.9 7.62 73.7 ~15.7
3 1/2 90 101.6 8.08 85.4 ~19.1
4 100 114.3 8.56 97.2 ~23.0
5 125 141.3 9.53 122.2 ~31.4
6 150 168.3 10.97 146.4 ~41.5
8 200 219.1 12.70 193.7 ~63.6
10 250 273.1 15.09 243.0 ~93.2
12 300 323.9 17.48 288.9 ~124.3
14 350 355.6 19.05 317.5 ~147.2
16 400 406.4 21.44 363.5 ~185.5
18 450 457.2 23.83 409.5 ~227.6
20 500 508.0 26.19 455.6 ~276.5
24 600 609.6 28.58 552.4 ~366.3

Schedule 160C

NPS NB (mm) OD (mm) WT (mm) ID (mm) Weight (kg/m)
1/2 15 21.3 4.78 11.7 ~1.97
3/4 20 26.7 5.56 15.6 ~3.09
1 25 33.4 6.35 20.7 ~4.56
1 1/4 32 42.2 6.35 29.5 ~6.09
1 1/2 40 48.3 7.14 34.0 ~7.89
2 50 60.3 8.74 42.8 ~11.5
2 1/2 65 73.0 9.53 53.9 ~15.9
3 80 88.9 11.13 66.6 ~22.1
4 100 114.3 13.49 87.3 ~34.3
5 125 141.3 15.88 109.5 ~49.1
6 150 168.3 18.26 131.8 ~66.9
8 200 219.1 23.01 173.1 ~108.9
10 250 273.1 28.58 216.0 ~168.6
12 300 323.9 33.32 257.3 ~240.4

Schedule XXC

NPS NB (mm) OD (mm) WT (mm) ID (mm) Weight (kg/m)
1/2 15 21.3 7.47 6.36 ~2.86
3/4 20 26.7 7.82 11.06 ~4.46
1 25 33.4 9.09 15.22 ~6.56
1 1/4 32 42.2 9.70 22.80 ~9.45
1 1/2 40 48.3 10.15 28.00 ~11.3
2 50 60.3 11.07 38.16 ~15.3
2 1/2 65 73.0 14.02 44.96 ~23.3
3 80 88.9 15.24 58.42 ~30.8
4 100 114.3 17.12 80.06 ~44.1
5 125 141.3 19.05 103.2 ~62.5
6 150 168.3 21.95 124.4 ~84.7
8 200 219.1 25.40 168.3 ~122.6
10 250 273.1 31.75 209.6 ~184.8
12 300 323.9 38.10 247.7 ~260.5

Grades Available

Material Grades
Carbon Steel ASTM A179, ASTM A192, ASTM A210 Gr A1, ASTM A210 Gr C
Alloy Steel ASTM A213 T11, T12, T22, T91, T5, T9
Stainless Steel TP304, 304L, 316, 316L, 321, 347, 310, 904L
Duplex / Super Duplex UNS S31803, UNS S32205, UNS S32750, UNS S32760
Nickel Alloys Inconel 600, 625, Incoloy 800, 825, Monel 400, Hastelloy C22, C276, Alloy 20
Nickel alloy tubes for heat exchangers
NICKEL ALLOYS
Stainless steel boiler and condenser tubes
STAINLESS STEEL
Duplex and super duplex tubes for seawater service
DUPLEX & SUPER
Titanium heat exchanger and condenser tubes
TITANIUM ALLOYS
Haynes superalloy tubes for high-temperature service
Haynes Superalloys
Inconel alloy tubes for corrosion-resistant applications
Inconel

Applications of U-Bent Tubes

1️⃣ Power Generation Industry

✔ Boilers
✔ Condensers
✔ Economizers
✔ Heat Recovery Steam Generators

2️⃣ Oil & Gas Industry

✔ Refineries
✔ Petrochemical Plants
✔ Process Heat Exchangers

3️⃣ Chemical Processing Industry

✔ Reactors
✔ Evaporators
✔ Chemical Cooling Systems

4️⃣ Marine & Offshore Industry

✔ Seawater Condensers
✔ Offshore Heat Exchangers
✔ Desalination Plants
✔ Brine Heaters
✔ Thermal Distillation Systems

5️⃣ HVAC & Refrigeration

✔ Cooling Coils
✔ Chillers
✔ Refrigeration Systems

Mechanical Properties

Mechanical Properties – U-Bent Tubes

Standard Tensile Strength (MPa) Yield Strength (MPa) Elongation (%)
ASTM A179 325 180 35
ASTM A192 325 180 35
ASTM A210 415 255 30
ASTM A213 TP304 515 205 40
ASTM A213 TP316 515 205 40

📌 Actual values may vary depending on material grade and heat treatment condition.

WHY CHOOSE US?

We deliver precision-engineered U-Bent Tubes designed to meet the highest international quality standards.

Ready Stock Availability

Large inventory across various grades.

Extensive Grade Range

Available in SS, CS, AS, Duplex, & Nickel Alloys.

Export Expertise

Serving global markets with reliable shipping.

Competitive Pricing

Direct manufacturer pricing.

Fast Delivery

Quick processing and dispatch.

Complete Traceability

Full documentation and MTCs provided.

Technical Support

Expert guidance for your project.

International Standards

Conforming to ASTM, ASME, EN, DIN, and BS.

Frequently Asked Questions (FAQ)

What are U-Bent Tubes used for?

U-Bent Tubes are primarily used in heat exchangers, condensers, boilers, and thermal transfer systems.

What materials are available?

Stainless Steel, Carbon Steel, Alloy Steel, Duplex Steel, Nickel Alloys, Titanium, and Copper Alloys.

Are seamless U-Bent Tubes available?

Yes, both seamless and welded U-Bent Tubes are available.

What standards do you supply?

ASTM, ASME, EN, DIN, and BS specifications.

What is the maximum leg length available?

Up to 12 meters or custom lengths as required.

Do you provide test certificates?

Yes, EN 10204 3.1 certificates are supplied upon request.

Do you export U-Bent Tubes?

Yes, we export globally, especially to GCC countries and international EPC projects.

Contact Us

Looking for U-Bent Tubes for industrial or export projects?
📞 Call: +91 97695 84950
🌐 Moksh Tubes & Fittings LLP - Precision piping solutions you can trust.

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