SS 316 / 316L Welded Pipes: ASTM A312 / A358, ERW & EFW. Get quotes from verified suppliers on MetalMitra.
- SS 316 / 316L Welded Pipes
- Stainless Steel Welded Pipes
- ASTM A312 / A358
- ERW & EFW
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Specifications
| Standard | ASTM A312, A358 / ASME SA312, SA358 |
|---|---|
| Grade | SS 316 (UNS S31600), 316L (UNS S31603) |
| Size | 1/2" NB to 48" NB |
| Schedule | 5S, 10S, 40S, 80S, STD, XS |
| Type | ERW, EFW, Welded |
| Length | Single random, double random, cut length |
| Ends | Plain end, bevelled end |
| Finish | Annealed & pickled, polished |
Grades & standards
- Stainless Steel 316
- Stainless Steel 316L
- ASTM A312
- ASTM A358
- ASME B36.19M
- EN 10217-7
Chemical composition & mechanical properties
| C | Mn | P | S | Si | Cr | Ni | Mo | N |
|---|---|---|---|---|---|---|---|---|
| 0.08 | 2.00 | 0.045 | 0.030 | 0.75 | 16.0–18.0 | 10.0–14.0 | 2.00–3.00 | 0.10 |
| Tensile strength, min | 515 MPa |
|---|---|
| Yield strength (0.2%), min | 205 MPa |
| Elongation in 50 mm, min | 40% |
| Hardness, max | 217 HBW |
Single values are maximums unless marked min. Values per ASTM A240 (plate, sheet and strip); always confirm against the purchase specification and the mill test certificate.
| C | Mn | P | S | Si | Cr | Ni | Mo | N |
|---|---|---|---|---|---|---|---|---|
| 0.030 | 2.00 | 0.045 | 0.030 | 0.75 | 16.0–18.0 | 10.0–14.0 | 2.00–3.00 | 0.10 |
| Tensile strength, min | 485 MPa |
|---|---|
| Yield strength (0.2%), min | 170 MPa |
| Elongation in 50 mm, min | 40% |
| Hardness, max | 217 HBW |
Single values are maximums unless marked min. Values per ASTM A240 (plate, sheet and strip); always confirm against the purchase specification and the mill test certificate.
Source SS 316 / 316L Welded Pipes from verified manufacturers, mills and stockists on MetalMitra. Molybdenum-bearing 316/316L offers better pitting and chloride resistance than 304, making it the preferred grade for marine, chemical and pharmaceutical piping.
Share your size, grade, quantity and delivery location once, and compare offers from suppliers who stock or manufacture SS 316 / 316L Welded Pipes to ASTM A312.
What you can source
- ERW Pipes — Electric resistance welded pipes for general and process piping.
- EFW Pipes — Electric fusion welded pipes for larger diameters and heavy walls.
- Welded Tubes — Thin-wall welded tubes for instrumentation and process lines.
- Polished Pipes — Mirror and satin finished pipes for sanitary and architectural use.
Key properties
- Corrosion Resistance — Performs reliably in water, chemical and food-grade service.
- Cost Effective — Lower cost than seamless pipe for most pressure ratings.
- Uniform Wall — Consistent wall thickness and tight dimensional tolerances.
- Easy Fabrication — Bends, welds and cuts without difficulty.
Applications & industries
- Process Piping
- Water Treatment
- Food & Dairy
- Pharmaceutical
- Chemical Plants
- Architectural & Railings
- Heat Exchangers
- General Engineering
Testing & documentation
Inspection and documentation for SS 316 / 316L Welded Pipes follow ASTM A312, A358 / ASME SA312 plus any extra requirements in your PO.
- Visual & dimensional inspection
- Hydrostatic test
- Eddy current / NDT test as applicable
- Flattening, flaring and bend tests
- Positive material identification (PMI)
- EN 10204 3.1 Mill Test Certificate
Why source on MetalMitra
- Verified suppliers — Mills, manufacturers and stockists are reviewed by the MetalMitra team before they list.
- One RFQ, several quotes — Share size, grade and quantity once and compare offers side by side.
- Full traceability — Heat numbers, test certificates and third-party inspection on request.
- Delivered worldwide — Export-worthy packing and shipping to India, the Middle East, Africa, Europe and the Americas.
Request pricing
Post an RFQ for SS 316 / 316L Welded Pipes with your drawing or specification and receive quotes from verified suppliers.
Technical note: Values on this page are for reference. Always confirm against the governing standard, your purchase specification and the test certificate.
Applications & industries
- Process Piping
- Water Treatment
- Food & Dairy
- Pharmaceutical
- Chemical Plants
- Architectural & Railings
- Heat Exchangers
- General Engineering
- Oil & Gas
- Petrochemical & Refining
- Power Generation
- Chemical Processing
- Water & Wastewater
- Pharmaceutical
- Food & Dairy
Testing & documents
Ask for the documents you need in your requirement — suppliers confirm them in their quotation:
- Mill test certificate to EN 10204 3.1, or 3.2 with third-party witness
- Third-party inspection (TPI) by SGS, Bureau Veritas, TÜV or your nominated agency
- Tests as the standard or your order requires: hydro, PMI, IGC, NDT, hardness or impact tests
FAQs
ERW pipes are welded by electric resistance without filler metal; EFW pipes use electric fusion welding and are typically used for larger diameters.
Yes, ASTM A312 welded pipes are widely used for pressure piping when hydro-tested and inspected to the standard.
Mill, pickled, annealed, satin (No.4) and mirror polished finishes are common.
Need SS 316 / 316L Welded Pipes?
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