- Chemical and petrochemical processing
- Power generation and utility piping
- Engineering, construction and structural applications
- Food processing, dairy and pharmaceutical piping
- Oil & gas and marine piping systems
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Delivering Excellence in Metals Since 1975
Steel that powers industries. Quality that builds trust.
Stainless Steel ERW & Seamless Pipes
Stainless Steel ERW & Seamless Pipes
We manufacture and supply stainless steel seamless, welded (ERW) and EFW pipes across a wide grade and size range, built to ASTM/ASME A312 and A358 with dimensional compliance to ANSI/ASME B36.10M and B36.19M. Used across power, oil & gas, chemical processing and general engineering wherever corrosion resistance and pressure integrity are critical. Available ex-stock in standard sizes with full mill traceability.
Quick Overview
| Parameters | Details |
| Standard | ASTM A312 / A358, ASME SA312 / SA358 |
| Size — Seamless | 1/2″ NB – 16″ NB |
| Size — Welded | 1/2″ NB – 24″ NB |
| Size — EFW | 6″ NB – 24″ NB |
| Outside Diameter | 6.00 mm – 914.4 mm |
| Wall Thickness / Schedule | SCH 5S, 10S, 10, 20, 40S, 40, STD, 60, 80S, 80, 100, 120, 140, 160, XS, XXS |
| Form | Round, Square, Rectangular, Hexagonal, Hydraulic |
| Manufacturing | Seamless / Welded / ERW / Fabricated / Cold Drawn, 100% X-ray tested on request |
| Ends | Plain, Beveled, Threaded One End, Threaded Both Ends |
| Surface Finish | 2B, No.1, No.4, No.8 Mirror, Bright Annealed |
| Delivery Condition | Annealed & Pickled, Polished, Bright Annealed, Cold Drawn |
| Value-Added Services | Cutting, beveling, polishing, threading, DT/NDT, ultrasonic testing |
| Test Reports | EN 10204 3.1, Mill Test Certificate, PMI, Chemical & Mechanical reports, Third-Party Inspection |
Grades Supplied
Grade Group | Typical Grades | Typical Governing Standard |
Standard austenitic | TP304, 304L, 304H, 202 | ASTM/ASME A312, A358 |
Molybdenum-bearing austenitic | 316, 316L, 316H, 316Ti, 317L | ASTM/ASME A312, A358 |
Titanium/niobium-stabilised | 321, 347 | ASTM/ASME A312, A358 |
Heat-resistant austenitic | 309, 310 | ASTM/ASME A312, A358 |
High-alloy austenitic | 904L | ASTM/ASME A312 |
Seamless vs ERW — Choosing the Right Route
Seamless pipe has no longitudinal weld seam, which makes it the usual choice for higher-pressure, cyclic-load or critical service, since there is no weld line to act as a potential weak point. ERW pipe is manufactured by rolling and resistance-welding plate or coil into a tube, which brings the cost down and works well for general process, structural and lower-pressure piping. Fully welded pipe from Sailesh Metal Corporation, where required, is backed by 100% X-ray radiography of the weld seam to confirm weld integrity before dispatch.
Seamless Pipe
Produced without a weld seam, suitable for high-pressure and critical applications where a uniform wall and consistent mechanical properties matter most.
Specification | Detail |
Governing Standard | ASTM/ASME A312 |
Size Range | 1/2″ NB to 16″ NB |
OD Range (Round) | 6 mm to 630 mm, wall thickness 0.5 mm to 30 mm |
Typical Use | High-pressure process lines, critical service piping, instrumentation tube |
ERW / Welded Pipe
Manufactured by forming and resistance-welding coil or plate, offering a cost-effective route for general and structural piping, and available with 100% radiography-tested weld seams.
Specification | Detail |
Governing Standard | ASTM/ASME A312 (welded), A358 (EFW) |
Size Range | 1/2″ NB to 24″ NB (welded) | 6″ NB to 24″ NB (EFW) |
OD Range | Up to 914.4 mm OD, ex-stock in select sizes |
Typical Use | General process piping, structural applications, larger-diameter lines |
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Industries & Applications Served
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Why Choose Sailesh Metal Corporation
- Metals trade experience since 1975
- Both seamless and ERW/welded pipe available across the same grade range
- Wide range of shapes and end finishes to suit OEM and project requirements
- Documentation support including EN 10204 3.1 MTC, PMI and third-party inspection
- Mumbai-based supply operation serving buyers across India and export markets
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How to Send an Enquiry
Share the following details so our team can quote accurately:
- Grade required (e.g. 304L, 316L, 321, 347, 904L)
- Manufacturing route: seamless, ERW or welded
- Size, schedule/wall thickness and length
- Shape: round, square, rectangular or hydraulic
- End type and surface finish required
- Quantity and applicable standard
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Frequently Asked Questions
- What is the difference between seamless and ERW stainless steel pipe?
- Seamless pipe is produced without a weld seam and is generally preferred for high-pressure or critical service. ERW pipe is formed and resistance-welded from coil or plate, offering a more economical option for general and structural piping.
- Which grade should I choose for chloride-heavy environments?
- 316 and 316L, with their molybdenum content, offer better resistance to chloride pitting and crevice corrosion than 304/304L. For more aggressive chloride exposure, 317L or 904L may be considered.
- Do you supply pipe with 100% radiography-tested welds?
- Yes, welded pipe can be supplied with 100% X-ray radiography testing of the weld seam on request.
- What documentation is provided with pipe supply?
- EN 10204 3.1 Mill Test Certificates, chemical and mechanical test reports, PMI reports and third-party inspection reports can be provided, subject to order terms.
- Can you supply pipe in non-standard shapes?
- Yes, in addition to round pipe we supply square, rectangular, hexagonal and hydraulic shapes, subject to size and grade availability.