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High Performance Seamless Pipes for Industry

Seamless pipes

Seamless pipes

Seamless pipes are widely recognized for their superior strength, reliability, and ability to handle high-pressure, high-temperature, and corrosive applications. Manufactured without any welding seams, seamless pipes offer uniformity, consistent structure, and superior mechanical properties compared to welded alternatives. Moksh Tubes & Fittings LLP, we deliver high-quality seamless pipe solutions, designed to meet diverse industry specifications and stringent operational demands.

Specifications

Category Details
Material Stainless Steel, Duplex & Super Duplex Steel, Nickel Alloys, Inconel, Monel, Titanium, Zirconium, Tantalum, Aluminum, Cupro-Nickel, Copper & Brass, Carbon Steel, Alloy Steelre
Grades As per ASTM/ASME standards – available in all mentioned alloys
Outer Diameter (OD) 3 mm to 610 mm / ¼” to 24” NB
Wall Thickness Available in all standard and custom schedules
Lengths Up to 6 meters or customized as per project requirements
Finishes Mill Finish, Electro Polished, Mechanical Polished, Matt Finish, Pickled & Passivated
Type ERW, EFW, LSAW, DSAW, SSAW, HSAW
Form Round, Rectangular, Square, Hydraulic, Hollow Section, Oval

Charts

Weight Chart

Nominal Bore Chart Outside Diameter (O.D)
(mm)		 Schedule 5S Schedule 10S Schedule 40S Schedule 80S Schedule 160S Schedule XXS
mm inches Wt Weight Wt Weight Wt Weight Wt Weight Wt Weight Wt Weight
3 1/8 10.3 1.24 0.276 1.24 0.28 1.73 0.37 2.41 0.47 — — — —
6 1/4 13.7 1.24 0.390 1.65 0.49 2.24 0.631 3.02 0.80 — — — —
10 3/8 17.1 1.24 00.490 1.63 0.49 2.31 00.845 3.02 1.10 — — — —
15 1/2 21.3 1.65 00.800 2.11 1.00 2.77 1.27 3.75 1.62 4.75 1.94 7.47 2.55
20 3/4 26.7 1.65 1.03 2.11 1.28 2.87 1.68 3.91 2.20 5.54 2.89 7.82 3.63
25 1 33.4 1.65 1.30 2.77 2.09 3.38 2.50 4.55 3.24 6.35 4.24 9.09 5.45
32 11.4 42.2 1.65 1.65 2.77 2.70 3.56 3.38 4.85 4.47 6.35 5.61 9.70 7.77
40 1 1/2 48.3 1.65 1.91 2.77 3.11 3.68 4.05 5.08 5.41 7.14 7.25 10.16 9.54
50 2 60.3 1.65 2.40 2.77 3.93 3.91 5.44 5.54 7.48 8.74 11.1 11.07 13.44
65 2 1/2 73.00 2.11 3.69 3.05 5.26 5.16 8.63 7.01 11.4 9.53 14.9 14.2 20.39
80 3 88.9 2.11 4.51 3.05 6.45 5.49 11.30 7.62 15.2 11.1 21.3 15.24 27.65
100 4 114.3 2.11 5.84 3.05 8.36 6.02 16.07 8.56 22.3 13.49 33.54 17.12 41.03
125 5 141.3 2.77 9.47 3.40 11.57 6.55 21.8 9.53 31.97 15.88 49.11 19.05 57.43
150 6 168.3 2.77 11.32 3.40 13.84 7.11 28.3 10.97 42.7 18.2 67.56 21.95 79.22
200 8 219.1 2.77 14.79 3.76 19.96 8.18 42.6 12.7 64.6 23.0 111.2 22.23 107.8
250 10 273.1 3.40 22.63 4.19 27.78 9.27 60.5 12.7 96.0 28.6 172.4 25.40 155.15
300 12 323.9 3.96 31.25 4.57 36.00 9.52 73.88 12.7 132.0 33.32 238.76 25.40 186.97

Size Charts

Schedule 5S – Size Chart (ASME B36.19)

NPS (inches) NB (mm) OD (mm) Wall Thickness (mm) Internal Diameter (mm) Weight (kg/m)
1/8 3 10.3 1.65 7.0 0.37
1/4 6 13.7 1.65 10.4 0.52
3/8 10 17.1 1.65 13.8 1.65
1/2 15 21.3 1.65 18.0 0.84
3/4 20 26.7 2.11 22.5 1.33
1 25 33.4 2.11 29.2 1.7
1 1/4 32 42.2 2.11 38.0 2.15
1 1/2 40 48.3 2.11 44.0 2.51
2 50 60.3 2.11 56.1 3.16
2 1/2 65 73.0 2.77 67.5 4.89
3 80 88.9 2.77 83.4 6.02
3 1/2 90 101.6 2.77 96.1 2.77
4 100 114.3 2.77 108.8 7.73
5 125 141.3 3.40 134.5 11.9
6 150 168.3 3.40 161.5 14.3
8 200 219.1 3.40 212.3 18.3
10 250 273.1 4.78 263.5 29.4
12 300 323.9 4.78 314.3 40.7
14 350 355.6 5.54 344.5 47.5
16 400 406.4 5.54 395.3 53.4
18 450 457.2 5.54 446.1 63.5
20 500 508.0 7.11 493.8 78.7
22 550 558.8 7.11 544.6 87.7
24 600 609.6 7.11 595.4 109.4

Schedule 10S – Size Chart (ASME B36.19)

NPS (inches) NB (mm) OD (mm) Wall Thickness (mm) Internal Diameter (mm) Weight (kg/m)
1/8 3 10.3 1.65 7.0 0.37
1/4 6 13.7 1.65 10.4 0.52
3/8 10 17.1 1.65 13.8 0.66
1/2 15 21.3 1.65 18.0 0.84
3/4 20 26.7 2.11 22.5 1.33
1 25 33.4 2.11 29.2 1.7
1 1/4 32 42.2 2.11 38.0 2.15
1 1/2 40 48.3 2.11 44.0 2.51
2 50 60.3 2.11 56.1 3.16
2 1/2 65 73.0 2.77 67.5 4.89
3 80 88.9 2.77 83.4 6.02
3 1/2 90 101.6 2.77 96.1 6.87
4 100 114.3 2.77 108.8 7.73
5 125 141.3 3.40 134.5 11.9
6 150 168.3 3.40 161.5 14.3
8 200 219.1 3.40 212.3 18.3
10 250 273.0 4.78 263.5 29.4
12 300 323.8 4.78 314.3 40.7
14 350 355.6 5.54 344.5 47.5
16 400 406.4 5.54 395.3 53.4
18 450 457.0 5.54 446.1 63.5
20 500 508.0 7.11 493.8 78.7
22 550 559.0 7.11 544.6 87.7
24 600 610.0 7.11 595.4 109.4

Schedule 40S – Size Chart (ASME B36.19)

NPS (inches) NB (mm) OD (mm) Wall Thickness (mm) Internal Diameter (mm) Weight (kg/m)
1/8 3 10.3 2.77 4.76 0.72
1/4 6 13.7 2.77 8.16 1.06
3/8 10 17.1 2.77 11.56 1.39
1/2 15 21.3 3.38 14.54 1.69
3/4 20 26.7 3.38 20.0 2.45
1 25 33.4 3.38 26.64 3.35
1 1/4 32 42.2 3.56 35.08 4.54
1 1/2 40 48.3 3.68 40.94 5.35
2 50 60.3 3.68 52.48 7.41
2 1/2 65 73.0 3.91 65.18 9.84
3 80 88.9 4.55 79.8 13.1
3 1/2 90 101.6 4.55 92.5 15.2
4 100 114.3 6.02 102.26 19.1
5 125 141.3 6.02 129.3 25.5
6 150 168.3 6.55 155.2 31.7
8 200 219.1 8.18 202.74 46.4
10 250 273.0 9.27 254.46 65.8
12 300 323.8 9.53 305.0 82.6
14 350 355.6 10.97 333.7 96.8
16 400 406.4 12.7 381.0 120.3
18 450 457.0 12.7 434.8 135.6
20 500 508.0 15.09 477.8 171.7
22 550 559.0 15.09 528.2 191.6
24 600 609.6 15.88 579.4 213.2

Schedule 80S – Size Chart (ASME B36.19)

NPS (inches) NB (mm) OD (mm) Wall Thickness (mm) Internal Diameter (mm) Weight (kg/m)
1/8 3 10.3 1.73 6.84 0.39
1/4 6 13.7 2.24 9.22 0.64
3/8 10 17.1 2.31 12.48 0.84
1/2 15 21.3 3.73 13.84 1.43
3/4 20 26.7 3.91 18.88 2.21
1 25 33.4 4.55 24.30 3.39
1 1/4 32 42.2 4.85 32.50 4.9
1 1/2 40 48.3 5.08 38.14 6.2
2 50 60.3 5.54 49.22 8.59
2 1/2 65 73.0 7.01 59.0 12.6
3 80 88.9 7.62 73.66 17.4
3 1/2 90 101.6 8.08 85.44 21.7
4 100 114.3 8.56 97.18 26.7
5 125 141.3 9.53 122.24 36.46
6 150 168.3 10.97 146.36 49.6
8 200 219.1 12.7 193.7 72.4
10 250 273.1 15.09 242.9 107.4
12 300 323.9 17.48 289.0 145.2
14 350 355.6 19.05 317.5 174.5
16 400 406.4 21.44 363.5 224.5
18 450 457.2 23.83 409.5 280.6
20 500 508.0 26.23 455.5 342.6
22 550 558.8 28.58 501.6 408.7
24 600 610.0 30.96 547.07 479.7

Schedule 160S – Size Chart (ASME B36.19)

NPS (inches) NB (mm) OD (mm) Wall Thickness (mm) Internal Diameter (mm) Weight (kg/m)
1/8 3 10.3 2.41 5.48 0.53
1/4 6 13.7 3.02 7.66 0.89
3/8 10 17.1 3.20 10.70 1.13
1/2 15 21.3 4.78 11.74 1.80
3/4 20 26.7 5.56 15.58 3.06
1 25 33.4 6.35 20.70 4.70
1 1/4 32 42.2 6.35 29.50 6.40
1 1/2 40 48.3 7.14 34.02 8.40
2 50 60.3 8.74 42.82 12.80
2 1/2 65 73.0 9.53 53.94 17.40
3 80 88.9 11.13 66.64 25.00
3 1/2 90 101.6 12.70 76.20 32.60
4 100 114.3 13.49 87.32 40.30
5 125 141.3 15.88 109.54 60.20
6 150 168.3 18.26 131.78 84.90
8 200 219.1 23.01 173.08 133.60
10 250 273.0 28.58 215.84 198.20
12 300 323.9 33.32 257.16 267.40

Schedule XXS – Size Chart (ASME B36.19)

NPS (inches) NB (mm) OD (mm) Wall Thickness (mm) Internal Diameter (mm) Weight (kg/m)
1/8 3 10.3 2.41 5.48 0.53
1/4 6 13.7 3.02 7.66 0.89
3/8 10 17.1 3.20 10.70 1.13
1/2 15 21.3 4.78 11.74 1.80
3/4 20 26.7 7.47 11.76 3.76
1 25 33.4 9.09 15.22 5.95
1 1/4 32 42.2 9.70 22.80 8.88
1 1/2 40 48.3 10.16 28.00 11.17
2 50 60.3 11.07 38.16 15.76
2 1/2 65 73.0 15.88 41.24 25.70
3 80 88.9 17.48 53.94 35.30
3 1/2 90 101.6 19.05 63.50 46.10
4 100 114.3 21.44 71.42 59.30
5 125 141.3 25.40 90.50 89.00
6 150 168.3 28.58 111.14 123.00
8 200 219.1 33.32 152.46 185.30
10 250 273.0 38.89 195.32 274.00
12 300 323.8 44.45 235.00 371.00

Grades Available

Welded pipes & tubes are available in a wide range of grades:

Material Grades
Nickel Alloys Hastelloy C276, C22, C4, B2, B3, C2000, G3, G30, Hastelloy X
Inconel 600, 601, 625, 690, 718, X750
Incoloy 800, 825, 925
Monel 400, K500, R405
Nickel 200, 201, A286 660
Titanium Alloys Grade 1, 2, 4, 4 ELI, 5, 5 ELI, 23, 7, 7NB, 9, 12
Duplex / Super Duplex 2507, S32760, S31803, 2205
Austenitic Stainless Steel 304, 310, 316, 316Ti, 317, 321, 347, 309, Nitronic 50, Nitronic 60
High Strength Stainless Steel 17-4PH, 15-5PH, 14-4PH, 410, 420, 420HC, 430F, 416, 431, 440A, 440B, 440C, 422, 403, 405
Super Austenitic Stainless Steel 904L, SMO 254, SMO 654, AL-6XN, Alloy 926, 253-MA
Zirconium 702, 704, 705
Tantalum R05200, R05252, R05255
Engineering Steels EN8, EN9, EN19, EN24, EN31, EN36, EN47, D2, 1045, 1055, 4140, 4130, 4340, P1, P11, P12, P22
Carbon Steel ASTM A106, A105, A36, A234 WPB, EN10210, IS2062
Aluminium Alloys HE30, 6082-T6, 6061-T6, 5083, 7075, 2014-T6, 6063, 1100, 1200, 6012
Copper Alloys CU-NI 70/30, 90/10, C44300, C46400, Aluminium Bronze, NAB, C71520, C71500
C63000, Brass, Naval Brass, Beryllium Copper
Special Alloys Tungsten, Carbide, Nitinol, Nimonic, Stellite, Tantalum
Haynes Superalloys Haynes 188, 230, 160, 242
NICKLE ALLOYS
NICKLE ALLOYS
STAINLESS STEEL
STAINLESS STEEL
DUPLEX & SUPER
DUPLEX & SUPER
TITANIUM ALLOYS
TITANIUM ALLOYS
Haynes Superalloys
Haynes Superalloys
Inconel
Inconel

Applications

Seamless pipes and tubes are integral to numerous industries where strength, durability, and resistance to extreme conditions are paramount:

Oil and Gas Industry
  • Onshore and offshore pipeline systems
  • High-pressure drilling, refining, and production processes
  • Heat exchangers and separators
Power Generation
  • High-pressure steam lines and boilers
  • Heat recovery systems and condensers
  • Nuclear power plant piping systems
Chemical and Petrochemical Industry
  • Corrosive fluid and gas transfer lines
  • Process reactors and distillation columns
  • Pressure vessels and chemical separators
Construction and Infrastructure
  • High-rise building structures
  • Bridges, tunnels, and offshore platforms
  • Water distribution and sewage systems
Automotive and Transport
  • High-performance exhaust systems
  • Hydraulic and fuel systems
  • Safety roll cages and chassis structures
Food, Beverage, and Dairy Processing
  • Sanitary process piping
  • Sterile transfer lines and CIP systems
  • Dairy, brewery, and beverage manufacturing lines
Marine and Shipbuilding
  • Desalination plants
  • Shipbuilding structural and piping systems
  • Ballast and bilge systems
HVAC and Plumbing
Welded pipes and tubes provide reliable solutions for the HVAC and plumbing sectors, including:
  • Heating, ventilation, and air conditioning systems
  • Hot and cold water distribution networks
  • High-pressure plumbing systems

Uses of Seamless Pipes

Seamless Pipes are used extensively across multiple industries, including:

Oil & Gas Industry

Transporting crude oil, natural gas, and refined products

Petrochemical & Chemical Plants

Handling corrosive fluids and gases

Power Generation

Boiler tubes, superheater tubes, and steam lines

Automotive & Mechanical Applications

Fuel injection systems

Construction & Infrastructure

Structural applications in bridges, buildings, and foundations

Pharmaceutical & Food Processing

Sanitary-grade stainless seamless pipes for clean transport of fluids

Advantages of Seamless Pipes & Tubes

Superior Strength

No welded seams eliminate weak points.

High Pressure & Temperature Handling

Perfect for extreme environments.

Enhanced Corrosion Resistance

Better performance in aggressive media.

Dimensional Accuracy

Uniform thickness and roundness.

Reliable Performance

Smooth internal surface ensures better fluid flow.

WHY CHOOSE US?

Ready Stock Available – Over 200 tons of seamless pipes and tubes in-house
Certified Quality – ISO 9001:2015, ASTM, ASME, and API standards
Practical Pricing – Premium quality that doesn’t break your budget
On-Time Delivery – We understand project schedules and stick to them
Real Support – Our technical team is always just a call away
Global Reach – We find even the rarest sizes and grades

FAQ's

What are seamless pipes?

What are the advantages of seamless pipes over welded pipes?

Seamless pipes have no welded seams, eliminating weak points and ensuring higher durability and pressure resistance. They provide better dimensional accuracy, improved flow efficiency, and excellent performance in extreme conditions compared to welded alternatives.

Which industries commonly use seamless pipes?

Seamless pipes are used across multiple industries such as Oil & Gas, Power Generation, Petrochemical, Construction, Automotive, Food & Beverage, Marine, and HVAC systems — wherever high performance and safety are required.

What materials are available for seamless pipes?

Seamless pipes are available in a wide range of materials including Stainless Steel, Duplex & Super Duplex, Nickel Alloys, Inconel, Monel, Titanium, Carbon Steel, Alloy Steel, Copper Alloys, Aluminium Alloys, and more — all supplied as per ASTM and ASME standards.

What sizes and dimensions can seamless pipes be manufactured in?

Moksh Tubes & Fittings LLP provides seamless pipes with outer diameters ranging from 3 mm to 610 mm (¼” to 24” NB) and in various wall thicknesses and schedules. Custom lengths and finishes are available as per project specifications.

Contact Us

For further information, quotes, or customized welded-pipes products, Moksh Tubes & Fittings LLP your dependable partner in aluminum alloys.

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