Stainless Steel Welded Pipes

Stainless Steel Welded Pipes Manufacturer, Supplier & Exporter in India

The Stainless Steel Welded Pipes are made by cold-forming plates or coils of stainless steel into a cylindrical form and permanently welding the longitudinal edges of the pipe using accuracy welding methods. These pipes are manufactured as per the international quality requirements such as ASME/ASTM A249, A269, A312 and EN 10217-7 such that they are implemented to the mechanical and chemical needs of various industrial settings. This production technique permits ultra-uniform wall thickness and superior structural integrity of a large size variety. 

These pipes provide a combination of high strength, and high corrosion resistance, and are offered in typical austenitic alloys including 304, 304L, 316 and 316L. They are usually furnished with dedicated surface finishes, including Pickled or 2B, which boosts their looks as well as their anti-oxidant capability. Their outer diameters are 21.3 mm to 219.1 mm and offer a flexible, economical piping system that can be used to transport fluids reliably in chemical processing, water treatment and structural applications.

Solitaire Overseas is a major manufacturer, supplier and exporter of high quality Stainless Steel Welded Pipes and Stainless Steel Pipes in India. Our focus is to supply a complete line of these pipes commonly referred to as Welded Stainless Steel Pipes or SS Welded Pipes that have been designed to be durable and strong. Our products are produced to strict international requirements like ASME/ ASTM A249, A269 and A312 which will be reliable to your most challenging applications. Being an established supplier, we will be able to provide a competitive price but not compromise the quality of the products.

Advantages of Stainless Steel Welded Pipes

Stainless steel welded pipes are a cost-effective and reliable solution for many industrial and structural applications. Because they are formed from high-quality steel strips and precisely welded, they offer specific benefits that make them ideal for large-scale projects.

  • Strength and durability: These pipes are designed to be strong in terms of internal pressure and external forces so that they last long when used in harsh conditions.
  • Excellent Corrosion Resistance: Welded pipes are resistant to oxidation and rust by nature, even in the presence of chemicals or in the dismal weather conditions by using such superior grades as 304 and 316.
  • Adaptability in Dimensions: There is immense flexibility in size with the welding operation, which enables the production of pipes of a very wide range of various sizes and lengths so that the perfect fit can be easily obtained when used in individual infrastructure project needs.
  • Improved Finish on the Surface: They are glossy due to the polished finish that is not only attractive but also simple to clean and maintain, which is very essential in areas of sanitation.
  • Consistent Thermal Resistance: These pipes are also stable in terms of their structural integrity and the performance level even when it is exposed to an increased temperature.

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Table of Contents

Stainless Steel Welded Pipe Specifications

Our high-quality welded pipes are manufactured in various grades and dimensions to meet the rigorous technical requirements of modern industrial infrastructure.

Specification Details
Product Type Welded Stainless Steel Pipes & Tubes
Standards ASME/ASTM A249, A269, A312, EN 10217-7 (Equivalent to EN & DIN Standards)
Outer Diameter (O.D) 21.3 mm to 219.1 mm
Nominal Bore (N.B) 1/2″ NB to 8″ NB
Wall Thickness 0.90 mm to 8 mm (SCH 5S, SCH 10S, SCH 20, SCH 40S)
Length Up to 6 meters
Process Features Gas Annealed, Pickled & Passivated
Surface Finish Pickled, 2B
Material Grades 304, 304L, 316, 316L Stainless Steel

Stainless Steel Welded Pipes Standards

Our stainless steel welded pipes are manufactured according to major international standards, including:

  • ASTM A312 / ASME SA312 – Standard specification for welded austenitic stainless steel pipes
  • ASTM A403 / ASME SA403 – Specifications for stainless steel fittings
  • EN / DIN Standards – Available upon request 

Each batch is supplied with Mill Test Certificates (MTC) and full quality documentation.

Chemical Composition of SS Welded Pipes

The following data provides a detailed breakdown of the elemental alloys used to enhance the corrosion resistance and durability of each stainless steel grade.

Grade DIN (EN) C (max) Cr (%) Ni (%) Mo (%)
304 1.4301 0.08 18.0–20.0 8.0–10.5 —
304L 1.4307 0.03 18.0–20.0 8.0–12.0 —
316 1.4401 0.08 16.0–18.0 10.0–14.0 2.0–3.0
316L 1.4404 0.03 16.0–18.0 10.0–14.0 2.0–3.0
321 1.4541 0.08 17.0–19.0 9.0–12.0 —
347 1.4550 0.08 17.0–19.0 9.0–13.0 —
410 1.4006 0.15 11.5–13.5 ≤0.75 —
430 1.4016 0.12 16.0–18.0 ≤0.75 —
409 1.4512 0.08 10.5–11.75 ≤0.50 —
439 — 0.07 17.0–19.0 0.5 —

Mechanical Properties of Stainless Steel Welded Pipes

This table outlines the structural capacity and flexibility metrics that define the operational reliability of our pipes under mechanical stress.

Grade Tensile Strength (MPa) Yield Strength (MPa) Elongation (%) Hardness (HRB max)
304 515–750 ≥205 ≥40 ≤90
304L 485–700 ≥170 ≥40 ≤90
316 515–760 ≥205 ≥40 ≤95
316L 485–700 ≥170 ≥40 ≤95
321 515–750 ≥205 ≥40 ≤95
347 515–750 ≥205 ≥40 ≤95
410 ≥450 ≥275 20–30 ≤96
430 ≥450 ≥205 ≥22 ≤88
409 ≥380 ≥170 ≥20 ≤85
439 ≥450 ≥205 ≥22 ≤88

Stainless Steel Welded Pipes Size Chart

Use this dimensional guide to identify the precise outside diameters and nominal bore sizes available for your specific piping project.

Designation of Diameter O/D Nominal Wall Thickness
DIA SCH.5S SCH.5 SCH 10S SCH.10 SCH.20S SCH.30 SCH.40S SCH.40 SCH 60
(A) (B) Meter MM Wall Thk Weight Kg/Mtr Wall Thk Weight Kg/Mtr Wall Thk Weight Kg/Mtr Wall Thk Weight Kg/Mtr Wall Thk Weight Kg/Mtr Wall Thk Weight Kg/Mtr Wall Thk Weight Kg/Mtr Wall Thk Weight Kg/Mtr Wall Thk Weight Kg/Mtr
6 1/8 10.3 1 0.23     1.2 0.27     1.5 0.33     1.73 0.37        
8 1/4 13.7 1.2 0.37     1.65 0.49     2 0.58     2.24 0.64        
10 3/8 17.2 1.2 0.47     1.65 0.63     2 0.74     2.31 0.87        
15 1/2 21.3 1.65 0.01 1.65 0.81 2.11 1.02 2.11 1.02 2.5 1.15     2.77 1.29        
20 3/4 26.7 1.65 1.03 1.65 1.03 2.11 1.3 2.11 1.3 2.5 1.49     2.87 1.71        
25 1 33.4 1.65 1.31 1.65 1.31 2.77 2.13 2.77 2.13 3 2.24     3.38 2.54        
32 11/4 24.2 1.65 1.67 1.65 1.67 2.77 2.73 2.77 2.73 3 2.9     3.56 3.44        
40 11/2 48.3 1.65 1.93 1.65 1.93 2.77 3.16 2.77 3.16 3 3.35     3.68 4.11        
50 2 60.3 1.65 1.93 1.65 2.42 2.77 3.99 2.77 3.99 3.5 4.9     3.91 5.52        
65 21/2 73 2.11 3.75 2.11 3.75 3.05 5.34 3.05 5.34 3.5 6     5.16 8.77        
80 3 88.9 2.11 4.59 2.11 4.59 3.05 6.56 3.05 6.56 4 8.37     5.49 11.47        
90 31/2 101.6 2.11 5.25 2.11 5.25 3.05 7.53 3.05 7.53 4 9.62     5.74 13.78        
100 4 114.3 2.11 5.93 2.11 5.93 3.05 8.5 3.05 8.5 4.5 12.18     6.02 6.32        
125 5 141.3 2.77 9.61 2.77 9.61 3.4 11.74 3.43 11.74 5 16.8     6.55 2210        
150 6 168.3 2.77 11.47 2.77 11.47 3.4 14.04 3.43 14.04 5.5 22.08     7.11 28.69        
200 8 219.1 2.77 15 2.77 15 3.76 20.77 3.76 20.27 6.35 33.82 7.04 37.38 8.18 43.2     10.81 53.9
250 10 273.1 3.4 22.95 3.4 22.95 4.19 28.2 4.19 28.2 6.35 42.41 7.8 51.81 9.27 61.22     12.2 82.8
300 12 323.9 3.96 31.72 4.19 33.6 4.57 36.54 4.57 36.54 6.35 50.48 8.38 66.2 9.53 75.01 10.31 80.94 14.27 110.62
350 14 355.6 3.96 34.86     4.78 41.99 6.35 55.53 7.92 68.95 9.53 82.58 9.53 82.58 11.13 96 15.06 128.42
400 16 406.4 4.19 42.2     4.78 48.07 6.35 63.61 7.92 79.03 9.53 94.7 9.53 94.7 12.7 125.2 16.66 162.59
450 18 457.2 4.19 47.46     4.78 54.15 6.35 71.69 7.92 89.1 11.13 124.32 9.53 106.83 14.27 158.27 19.05 209
500 2C 508 4.78 60.23     5.54 69.7 6.35 79.76 9.53 118.93 12.7 157.51 9.53 118.9 15.06 185.89 2062 251.65
550 22 558.8 4.78 65.95     5.54 76.75 6.35 87.84 9.53 131.07 12.7 173.66 9.53 131.07 15.88 216.04 22.23 298.55
600 24 609.6 5.54 83.8     6.35 95.92 6.35 95.92 9.53 143.2 14.27 212.72 9.53 143.2 17.45 258.74 24.59 360.21
650 26 660.4             7.92 129.4 12.7 205.97     9.53 155.32        
700 28 711.2             7.92 139.47 12.7 222.13 15.88 276.48 9.53 167.44        
750 3C 762 6.35 120.15     7.92 149.55 7.92 149.55 12.7 238.28 15.88 296.68 9.53 179.56        
800 32 812.8             7.92 159.62 12.7 254.44 15.88 316.88 9.53 191.69 17.48 348.11    
850 34 863.6             7.92 169.64 12.7 270.5 15.88 336.96 9.53 203.74 17.48 370.22    
900 36 914.4             7.92 179.77 12.7 286.75 15.88 357.28 9.53 215.93 19.05 427.09    

Stainless Steel Welded Pipe Weight Chart

This comprehensive weight chart assists in logistics planning and structural support calculations for varying wall thicknesses and lengths.

Designation of Diameter O/D Nominal Wall Thickness
DIA SCH.5S SCH.5 SCH 10S SCH.10 SCH.20S SCH.30 SCH.40S SCH.40 SCH 60
(A) (B) Meter MM Wall Thk Weight Kg/Mtr Wall Thk Weight Kg/Mtr Wall Thk Weight Kg/Mtr Wall Thk Weight Kg/Mtr Wall Thk Weight Kg/Mtr Wall Thk Weight Kg/Mtr Wall Thk Weight Kg/Mtr Wall Thk Weight Kg/Mtr Wall Thk Weight Kg/Mtr
6 1/8 10.3 1 0.23     1.2 0.27     1.5 0.33     1.73 0.37        
8 1/4 13.7 1.2 0.37     1.65 0.49     2 0.58     2.24 0.64        
10 3/8 17.2 1.2 0.47     1.65 0.63     2 0.74     2.31 0.87        
15 1/2 21.3 1.65 0.01 1.65 0.81 2.11 1.02 2.11 1.02 2.5 1.15     2.77 1.29        
20 3/4 26.7 1.65 1.03 1.65 1.03 2.11 1.3 2.11 1.3 2.5 1.49     2.87 1.71        
25 1 33.4 1.65 1.31 1.65 1.31 2.77 2.13 2.77 2.13 3 2.24     3.38 2.54        
32 11/4 24.2 1.65 1.67 1.65 1.67 2.77 2.73 2.77 2.73 3 2.9     3.56 3.44        
40 11/2 48.3 1.65 1.93 1.65 1.93 2.77 3.16 2.77 3.16 3 3.35     3.68 4.11        
50 2 60.3 1.65 1.93 1.65 2.42 2.77 3.99 2.77 3.99 3.5 4.9     3.91 5.52        
65 21/2 73 2.11 3.75 2.11 3.75 3.05 5.34 3.05 5.34 3.5 6     5.16 8.77        
80 3 88.9 2.11 4.59 2.11 4.59 3.05 6.56 3.05 6.56 4 8.37     5.49 11.47        
90 31/2 101.6 2.11 5.25 2.11 5.25 3.05 7.53 3.05 7.53 4 9.62     5.74 13.78        
100 4 114.3 2.11 5.93 2.11 5.93 3.05 8.5 3.05 8.5 4.5 12.18     6.02 6.32        
125 5 141.3 2.77 9.61 2.77 9.61 3.4 11.74 3.43 11.74 5 16.8     6.55 2210        
150 6 168.3 2.77 11.47 2.77 11.47 3.4 14.04 3.43 14.04 5.5 22.08     7.11 28.69        
200 8 219.1 2.77 15 2.77 15 3.76 20.77 3.76 20.27 6.35 33.82 7.04 37.38 8.18 43.2     10.81 53.9
250 10 273.1 3.4 22.95 3.4 22.95 4.19 28.2 4.19 28.2 6.35 42.41 7.8 51.81 9.27 61.22     12.2 82.8
300 12 323.9 3.96 31.72 4.19 33.6 4.57 36.54 4.57 36.54 6.35 50.48 8.38 66.2 9.53 75.01 10.31 80.94 14.27 110.62
350 14 355.6 3.96 34.86     4.78 41.99 6.35 55.53 7.92 68.95 9.53 82.58 9.53 82.58 11.13 96 15.06 128.42
400 16 406.4 4.19 42.2     4.78 48.07 6.35 63.61 7.92 79.03 9.53 94.7 9.53 94.7 12.7 125.2 16.66 162.59
450 18 457.2 4.19 47.46     4.78 54.15 6.35 71.69 7.92 89.1 11.13 124.32 9.53 106.83 14.27 158.27 19.05 209
500 2C 508 4.78 60.23     5.54 69.7 6.35 79.76 9.53 118.93 12.7 157.51 9.53 118.9 15.06 185.89 2062 251.65
550 22 558.8 4.78 65.95     5.54 76.75 6.35 87.84 9.53 131.07 12.7 173.66 9.53 131.07 15.88 216.04 22.23 298.55
600 24 609.6 5.54 83.8     6.35 95.92 6.35 95.92 9.53 143.2 14.27 212.72 9.53 143.2 17.45 258.74 24.59 360.21
650 26 660.4             7.92 129.4 12.7 205.97     9.53 155.32        
700 28 711.2             7.92 139.47 12.7 222.13 15.88 276.48 9.53 167.44        
750 3C 762 6.35 120.15     7.92 149.55 7.92 149.55 12.7 238.28 15.88 296.68 9.53 179.56        
800 32 812.8             7.92 159.62 12.7 254.44 15.88 316.88 9.53 191.69 17.48 348.11    
850 34 863.6             7.92 169.64 12.7 270.5 15.88 336.96 9.53 203.74 17.48 370.22    
900 36 914.4             7.92 179.77 12.7 286.75 15.88 357.28 9.53 215.93 19.05 427.09    
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Stainless Steel Welded Pipes HSN Code

The table below provides the essential Harmonized System codes required for accurate tax documentation and international customs clearance for SS Welded Pipes.

Product Description HS Code HS Code (India – 8 Digit) Remarks
Stainless Steel Welded Pipes 730640 73064000 Welded pipes and tubes of stainless steel

Stainless Steel Welded Pipes Grades

We supply stainless steel welded pipes in a variety of grades to suit different application needs:

  • SS 304 / 304L – General service, corrosion-resistant grade
  • SS 316 / 316L – Excellent chloride resistance, ideal for chemical, marine environments
  • SS 321 / 347 – Stabilized grades for elevated temperature applications
  • Duplex & Super Duplex (on request) – Higher strength and enhanced corrosion resistance

Custom grades are available based on project requirements.

Types Of Stainless Steel Welded Pipes

As a comprehensive supplier, Solitaire Overseas offers a wide variety of Stainless Steel Seamless Pipes to meet specific functional and aesthetic requirements. Our inventory includes:

SS Welded Round Pipes
SS Welded Round Pipes
SS Welded Square Pipe
SS Welded Square Pipe
SS Welded Square Tubes
SS Welded Square Tubes
SS Welded Rectangular Pipe
SS Welded Rectangular Pipe
SS Welded Pipes
SS Welded Pipes
SS Polished Welded Pipe
SS Polished Welded Pipe
SS Welded Rectangular Tubes
SS Welded Rectangular Tubes
SS ERW Pipes
SS ERW Pipes
SS ERW Tube
SS ERW Tube

Manufacturing Process of Stainless Steel Welded Pipes

Stainless steel welded pipes are produced using precision forming and high-frequency welding technologies:

  1. Preparation of stainless steel coils/plates
  2. Rolling/forming into cylindrical shape
  3. High-frequency electric resistance welding (HFW/ERW)
  4. Heat treatment and straightening
  5. Surface finishing & inspection
  6. Quality testing and documentation

This process ensures strong weld integrity and dimensional uniformity.

Industrial Applications of Stainless Steel Welded Pipes

Stainless steel welded pipes are used across a variety of industries, including:

Industrial Applications
  • Chemical Industries
  • Thermal & Nuclear Power Plants
  • Fertilizer Plants
  • Aerospace
  • Food & Dairy Plants
  • Paper Industries
  • Oil & Gas Exploration
  • Desalination Plants
  • Pharmaceutical Plants

Their durability and corrosion resistance make them ideal for fluid transfer and processing systems.

Why Choose Solitaire Overseas?

  • Trusted supplier & global exporter of stainless steel welded pipes
  • Wide range of grades, sizes, and specifications
  • Competitive pricing with reliable delivery
  • Strong logistics and export support
  • Quality compliance with international norms

Our products serve engineering, industrial, and infrastructure sectors worldwide.

Quality Assurance & Testing of SS Welded Pipes

Solitaire Overseas maintains strict quality checks throughout manufacturing and dispatch:

  • Chemical composition analysis
  • Mechanical testing (tensile, hardness, impact)
  • Weld integrity & non-destructive testing (NDT)
  • Dimensional inspection
  • Certification as per international standards

All products come with Mill Test Certificate (EN 10204 / 3.1) and complete traceability.

Related Products

Stainless Steel Welded Pipes Price

Product Description Standard Price Range (USD/Ton)
Stainless Steel Welded Pipe ASTM A312 $4,200 – $5,700
SS Welded Pipe ASTM A312 $3,700 – $5,200
SS Round Welded Pipe ASTM A312 $5,200 – $6,700
SS Bright Annealed Welded Pipes ASTM A312 $5,200 – $6,700
Stainless Steel Welded Pipes (General) ASTM A312 $5,200 – $6,700

Looking for the most current price for specific grades like 316L or bulk order discounts? Contact us today to receive a personalized quote tailored to your project’s exact dimensional requirements.

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Frequently Asked Questions About Stainless Steel Welded Pipes

Welded pipes are formed from steel plates/coils and have a weld seam, while seamless pipes are made by extrusion without any seam. Welded pipes are more cost-effective with precise dimensions.

SS 316 / 316L offers superior resistance to chlorides and corrosive media, making it ideal for chemical and marine applications.

Yes, we offer welded pipes in customized sizes, wall thicknesses, and schedules as per project needs.

Yes, we provide MTCs with every shipment, ensuring compliance with international standards.

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+91-9619103479
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vishal@solitaire-overseas.com

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