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High-Quality Welded Pipes for Industrial Applications

Welded Pipes & Tubes (ERW & EFW)

Welded tubes are a vital component in today’s industrial landscape, offering a combination of strength, durability, and cost-efficiency. These tubes are formed by rolling metal into shape and welding the seam, resulting in consistent dimensions and reliable performance across a wide range of applications.

With strong technical insight and a focus on project-specific demands, Moksh Tubes & Fittings LLP ensures that the right welded tube solutions are aligned with diverse operational environments and industry standards.

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 Steel
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
350	14	355.6	3.96	34.36	4.78	41.3	11.13	94.59	19.05	158.08	35.71	281.70	—	—
400	16	406.4	4.19	41.56	4.78	47.29	12.7	123.30	21.41	203.33	40.46	365.11	—	—
450	18	457.2	4.19	46.80	4.78	53.42	14.27	155.80	23.8	254.36	45.71	466.40	—	—
500	20	508.0	4.78	59.25	5.54	68.71	15.09	183.42	26.19	311.2	49.99	564.68	—	—
600	24	609.6	5.54	82.47	6.35	94.45	17.48	255.41	30.96	442.08	59.54	808.22	—	—

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	1.24	7.8	0.276
1/4	6	13.7	1.24	11.2	0.39
3/8	10	17.1	1.24	14.6	0.49
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
3 1/2	90	101.6	2.11	97.4	5.17
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 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	1.24	7.8	0.28
1/4	6	13.7	1.24	11.2	0.39
3/8	10	17.1	1.24	14.6	0.49
1/2	15	21.3	1.65	18.0	0.81
3/4	20	26.7	1.65	23.4	1.04
1	25	33.4	1.65	30.1	1.32
1 1/4	32	42.2	1.65	38.9	1.68
1 1/2	40	48.3	1.65	45.0	1.93
2	50	60.3	1.65	57.0	2.43
2 1/2	65	73.0	1.65	69.7	2.96
3	80	88.9	1.65	85.6	3.62
3 1/2	90	101.6	1.65	98.3	4.14
4	100	114.3	1.65	111.0	4.67
5	125	141.3	1.65	138.0	5.79
6	150	168.3	1.65	165.0	6.91
8	200	219.1	2.11	214.9	11.51
10	250	273.0	2.77	267.5	18.81
12	300	323.8	3.05	317.7	24.59
14	350	355.6	3.40	348.8	30.10
16	400	406.4	3.40	399.6	34.44
18	450	457.0	3.80	449.4	43.28
20	500	508.0	3.80	500.4	48.15
22	550	559.0	4.00	551.0	55.79
24	600	610.0	4.00	602.0	60.92

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	1.73	6.84	0.37
1/4	6	13.7	2.24	9.22	0.64
3/8	10	17.1	2.31	12.48	0.86
1/2	15	21.3	2.77	15.76	1.27
3/4	20	26.7	2.87	20.96	1.70
1	25	33.4	3.38	26.64	2.46
1 1/4	32	42.2	3.56	35.08	3.61
1 1/2	40	48.3	3.68	40.94	4.18
2	50	60.3	3.91	52.48	5.44
2 1/2	65	73.0	5.16	62.68	8.63
3	80	88.9	5.49	77.92	11.29
3 1/2	90	101.6	5.74	90.12	14.02
4	100	114.3	6.02	102.26	17.15
5	125	141.3	6.55	128.20	23.85
6	150	168.3	7.11	154.08	30.70
8	200	219.1	8.18	202.74	49.56
10	250	273.0	9.27	254.46	73.50
12	300	323.8	10.31	303.18	95.54
14	350	355.6	11.13	333.34	112.63
16	400	406.4	12.70	380.99	144.27
18	450	457.0	14.27	428.46	179.28
20	500	508.0	15.09	477.82	213.93
22	550	559.0	15.09	528.82	235.40
24	600	610.0	15.88	578.24	274.06

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	0.37
1/4	6	13.7	3.02	7.66	0.83
3/8	10	17.1	3.20	10.70	1.13
1/2	15	21.3	3.73	13.84	1.63
3/4	20	26.7	3.91	18.88	2.30
1	25	33.4	4.55	24.30	3.38
1 1/4	32	42.2	4.85	32.50	4.84
1 1/2	40	48.3	5.08	38.14	5.61
2	50	60.3	5.54	49.22	7.48
2 1/2	65	73.0	7.01	58.98	11.76
3	80	88.9	7.62	73.66	15.74
3 1/2	90	101.6	8.08	85.44	20.20
4	100	114.3	8.56	97.18	25.10
5	125	141.3	9.53	122.24	36.46
6	150	168.3	10.97	146.36	49.56
8	200	219.1	12.70	193.70	77.10
10	250	273.0	15.09	242.82	114.00
12	300	323.8	17.48	288.84	153.00
14	350	355.6	19.05	317.50	180.00
16	400	406.4	21.44	363.52	227.50
18	450	457.0	23.83	409.34	282.50
20	500	508.0	26.18	455.64	342.00
22	550	559.0	28.58	501.84	408.00
24	600	610.0	30.96	548.08	480.00

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	0.49
1/4	6	13.7	3.02	7.66	0.83
3/8	10	17.1	3.20	10.70	1.13
1/2	15	21.3	4.09	13.12	1.75
3/4	20	26.7	4.55	17.60	2.63
1	25	33.4	6.35	20.70	4.51
1 1/4	32	42.2	6.35	29.50	6.12
1 1/2	40	48.3	7.14	34.02	7.92
2	50	60.3	8.71	42.88	11.06
2 1/2	65	73.0	9.53	53.94	14.90
3	80	88.9	11.13	66.64	21.31
3 1/2	90	101.6	12.70	76.20	29.00
4	100	114.3	13.49	87.32	34.35
5	125	141.3	15.88	109.54	53.30
6	150	168.3	18.26	131.78	75.53
8	200	219.1	23.01	173.08	123.90
10	250	273.0	28.58	215.84	190.50
12	300	323.8	33.32	257.16	268.00
14	350	355.6	35.71	284.18	327.00
16	400	406.4	40.49	325.42	429.50
18	450	457.0	45.24	366.52	544.00
20	500	508.0	50.01	407.98	677.50
22	550	559.0	53.98	451.04	823.00
24	600	610.0	59.54	490.92	997.00

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	0.49
1/4	6	13.7	3.02	7.66	0.83
3/8	10	17.1	3.20	10.70	1.13
1/2	15	21.3	4.78	11.74	1.98
3/4	20	26.7	6.02	14.66	3.32
1	25	33.4	7.47	18.46	5.25
1 1/4	32	42.2	9.09	24.02	8.26
1 1/2	40	48.3	10.15	28.00	10.68
2	50	60.3	11.07	38.16	14.82
2 1/2	65	73.0	13.49	46.02	21.56
3	80	88.9	15.24	58.42	29.83
3 1/2	90	101.6	17.12	67.36	39.00
4	100	114.3	18.26	77.78	47.17
5	125	141.3	21.95	97.40	70.65
6	150	168.3	25.40	117.50	99.57
8	200	219.1	28.58	161.94	144.45
10	250	273.0	31.75	209.50	202.00
12	300	323.8	36.53	250.74	281.25
14	350	355.6	38.89	277.82	338.00
16	400	406.4	44.45	317.50	442.50
18	450	457.0	50.01	356.98	562.00
20	500	508.0	55.56	396.88	697.00
22	550	559.0	58.96	441.08	826.00
24	600	610.0	63.50	483.00	984.00

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

STAINLESS STEEL

DUPLEX & SUPER

TITANIUM ALLOYS

RARE TO ALLOYS

CARBON ALLOYS

Applications

Welded pipes and tubes are indispensable components in numerous industries due to their exceptional strength, precise dimensional accuracy, and cost-effectiveness. These versatile products are widely utilized for structural purposes and fluid transport systems, particularly in demanding environments.

Oil and Gas Industry

Welded pipes and tubes find extensive use in the energy sector, including:

• Onshore and offshore pipeline networks
• Crude oil and natural gas transmission systems

Power Generation

Power plants rely on welded pipes and tubes to ensure operational efficiency in areas such as:

• Boiler tubes, superheaters, and economizers
• Condensers and feedwater systems
• Heat recovery steam generators (HRSG)

Chemical and Petrochemical Industry

For handling corrosive substances and high-pressure environments, welded pipes and tubes are essential in:

• Transporting corrosive fluids and gases
• Process piping within chemical reactors
• Distillation and separation systems

Construction and Infrastructure

Welded pipes and tubes are critical in the construction sector for:

• Building structures and architectural frameworks
• Bridges, tunnels, and industrial sheds
• Water distribution and sewage systems

Automotive and Transport

The automotive and heavy transport industries heavily utilize welded pipes and tubes for:

• Exhaust systems and fuel lines
• Hydraulic systems and structural components
• Roll cages and chassis frameworks

Food, Beverage, and Dairy Processing

Hygienic-grade welded pipes and tubes ensure safe and sanitary applications in:

• Sanitary fluid transfer systems
• Process lines for dairy and beverage production
• Clean-in-place (CIP) and sterilization systems

Marine and Shipbuilding

Welded pipes and tubes also serve an integral role in:

• Seawater piping systems
• Ballast and bilge systems
• Structural frameworks for ships and offshore platforms

HVAC and Plumbing

Welded pipes and tubes provide reliable solutions for the HVAC and plumbing sectors, including:

• Hot and cold water distribution
• Heating, ventilation, and air conditioning systems

Uses of Welded Pipes and Tubes

Welded tubes are used extensively across multiple industries, including:

Construction and Infrastructure

structural supports, frameworks, scaffolding, and fencing

Oil & Gas

pipelines, processing systems, and offshore platforms

Petrochemical and Chemical Industries

equipment, transfer lines, and high-performance systems

Automotive and Transport

chassis components, axles, and exhaust systems

Plumbing and Water Supply

pipelines for water distribution and drainage

Thermal Equipment

boiler tubes, heat exchangers, and condensers

Advantages of Welded Pipes & Tubes

Cost-Effective Production

Typically more economical than seamless alternatives

Dimensional Accuracy

Ensures uniformity in thickness and shape

Availability in Custom Lengths & Sizes

Easily fabricated to meet specific requirements

Efficient Manufacturing

Supports high-volume production and timely availability

Strong Weld Joints

Modern techniques provide reliable and durable seams

Welded tubes continue to be a preferred choice in sectors where precision, efficiency, and long-term performance are critical. With a commitment to quality and deep industry knowledge, Moksh Tubes & Fittings LLP delivers solutions that support modern engineering and infrastructure needs.

WHY CHOOSE US?

Global Reach: Sourcing rare sizes and materials worldwide

Certified Assurance: ISO 9001:2015 and compliance with ASTM, ASME, API

Competitive Pricing: Quality products at practical costs

Timely Dispatch: Delivery aligned with your project timeline

Technical Expertise: Responsive assistance from inquiry to execution

Extensive Stock of Welded Pipes and Tubes: Immediate availability with 200+ tons in inventory