316L Stainless Steel Seamless Pipe and ASTM A312 TP316L Stainless Steel Welded Pipe Supplier in India
Amardeep Steel Centre is a Mumbai-based manufacturer, stockist, supplier and exporter of Stainless Steel 316L Pipes & Tubes, supplying both SS 316L Seamless Pipe and SS 316L Welded Pipe in full conformance with ASTM A312 TP316L, ASTM A213 and ASTM A249. Whether you need stainless steel 316L pipes for high-pressure process lines or 316L stainless steel pipes for large-diameter corrosive service, we stock all schedules from 5S through XXS and sizes from 1/2" NB to 100" NB. We serve fabricators, EPC contractors, and end-users in chemical processing, pharmaceuticals, marine engineering, oil & gas and food-grade piping. Every SS 316L pipe leaving our facility is accompanied by an EN 10204 3.1 Mill Test Certificate, with IBR Form III-D and third-party inspection (SGS/BV/TUV/Lloyd's) available on request.
What is Stainless Steel 316L Pipe?
Stainless Steel 316L Pipe is the low-carbon variant of Grade 316 austenitic stainless steel - an alloy built around a chromium-nickel base with an added 2-3% molybdenum that significantly improves resistance to pitting and crevice corrosion in chloride-rich environments such as seawater, brine, and many acids. The "L" stands for "low carbon" (0.03% maximum versus 0.08% in standard 316). This single change has an outsized effect on fabrication: during welding, standard 316 can form chromium carbides at the grain boundaries, depleting chromium locally and leaving the heat-affected zone vulnerable to intergranular corrosion. The lower carbon content in SS 316L pipes largely prevents this, so welded 316L pipe does not normally need post-weld annealing to restore corrosion resistance.
Beyond weldability, SS 316L Pipe retains the core advantages of the 316 family: good strength and toughness across a wide temperature range including cryogenic service down to -196°C combined with the ductility (35% minimum elongation per ASTM A312 Table 3) needed for bending, forming and fabrication into pipe spools, fittings and pressure equipment.
Explore our related Stainless Steel 316 Pipes & Tubes and Stainless Steel 316L Coil Tubing for complementary product options.
ASTM A312 TP316L Pipe Overview
ASTM A312 is the primary specification covering seamless and welded austenitic stainless steel pipe for high-temperature and general corrosive service, with the mirror ASME specification SA312. Within this standard, TP316L (Type 316L) designates the low-carbon 316 chemistry. For tubular products, the equivalent tube specifications are ASTM A213 (seamless) and ASTM A249 (welded), both widely cross-referenced as “ASTM A312/A213/A249 TP316L.” Buyers sourcing 316L stainless steel pipes for process plant applications will frequently encounter this triple-standard reference on mill documents and purchase orders.
| Designation System | Reference |
|---|---|
| ASTM/ASME (pipe) | A312 / SA312, A358 / SA358 |
| ASTM/ASME (tube) | A213 / SA213, A249 / SA249, A269 / SA269 |
| UNS Number | S31603 |
| Werkstoff Number (EN) | 1.4404 / 1.4435 / 1.4436 |
| EN Designation | X2CrNiMo17-12-2 |
| JIS | SUS 316L |
| Old British (BS) | 316S11 / 316S13 |
| Dimensional Standards | ASME B36.10 (general), ASME B36.19 (stainless) |
A pipe stamped TP316L under ASTM A312 TP316L, equivalent to UNS S31603 / DIN 1.4404, can be sourced as SS 316L Seamless Pipe, SS 316L ERW Pipe, or SS 316L EFW/LSAW Pipe, depending on size and pressure requirements — all available from Amardeep Steel Centre’s Mumbai stock.
Stainless Steel 316L Pipes & Tubes Specifications
|
Specification |
Details |
|---|---|
|
Grades |
Stainless Steel 316L (UNS S31603), Werkstoff Nr. 1.4404 / 1.4435 |
|
Dimensional Standards |
Conforming to ASME B36.19 (Stainless Steel) & ASME B36.10 (General) |
|
Seamless Pipe Standards |
ASTM A312 / ASME SA312 |
|
Welded Pipe Standards |
ASTM A312, A358 / ASME SA312, SA358 |
|
Seamless Tube Standards |
ASTM A213, A269 / ASME SA213, SA269 |
|
Welded Tube Standards |
ASTM A249, A269 / ASME SA249, SA269 |
|
Size Range |
Seamless Pipe: 1/2″ NB – 16″ NB |
|
Specialization |
Large Diameter Welded & Fabricated Pipes |
|
Schedules |
SCH 5S, SCH 10S, SCH 20, SCH 30, SCH 40S, STD, SCH 80S, XS, SCH 120, SCH 160, XXS |
|
Type |
Seamless, Welded, ERW, EFW, Fabricated, LSAW |
|
Form / Shape |
Round, Square, Rectangular, Oval, Hollow, Hydraulic |
|
Length |
Single Random, Double Random & Custom Cut Lengths |
|
End Finish |
Plain End (PE), Beveled End (BE), Threaded |
These 316L stainless steel pipe specifications apply across all product types in our stock range. For instrumentation and hydraulic tube sizes, see ourInstrumentation Tubing page. For welded austenitic tube per ASTM A249/A269, visit ourWelded Austenitic SS Tube page.
Chemical Composition of SS 316L Pipe (ASTM A312 Table 1)
| Grade | C (max) | Mn (max) | Si (max) | P (max) | S (max) | Cr | Ni | Mo | N (max) |
|---|---|---|---|---|---|---|---|---|---|
| 316L | 0.03% | 2.00% | 0.75% | 0.045% | 0.030% | 16.0–18.0% | 10.0–14.0% | 2.0–3.0% | 0.10% |
The defining feature of TP316L is its 0.03% maximum carbon content (versus 0.08% for standard 316), combined with 2–3% molybdenum — the element primarily responsible for SS 316L pipe’s resistance to pitting in chloride-bearing media such as seawater, saline process streams, and many dilute acids. This chemistry is verified by PMI (Positive Material Identification) using XRF or OES equipment on every lot dispatched from our facility to verify UNS S31603 chemistry, including the critical 0.03% carbon maximum.
Mechanical Properties of SS 316L Pipe (ASTM A312 Table 3)
| Property | Value |
|---|---|
| Tensile Strength (min) | 485 MPa (70,000 psi) per ASTM A312 Table 3 |
| Yield Strength 0.2% (min) | 170 MPa (25,000 psi) per ASTM A312 Table 3 |
| Elongation (min) | 35% (per ASTM A312 Table 3) |
| Hardness (max) | 217 HB / 95 HRB |
SS 316L pipe combines moderate strength with high ductility, allowing it to be bent, flared, and fabricated into pipe spools and fittings without cracking, while still meeting the minimum 485 MPa tensile strength required by ASTM A312 for pressure piping applications. These properties make 316L stainless steel pipes a reliable choice for both ambient and elevated-temperature service.
Physical Properties of SS 316L Pipe
| Property | Value |
|---|---|
| Density | 8,000 kg/m³ (7.99 g/cm³) |
| Elastic (Young’s) Modulus | 193 GPa |
| Mean Coefficient of Thermal Expansion (0–100°C) | 15.9 µm/m·°C |
| Thermal Conductivity (at 100°C) | 16.3 W/m·K |
| Specific Heat (0–100°C) | 500 J/kg·K |
| Electrical Resistivity | 0.74 µΩ·m |
| Continuous Service Temperature1 | Up to 870°C (1600°F) |
| Intermittent Service Temperature1 | Up to 925°C (1700°F) |
| Cryogenic Service Temperature | Down to −196°C (−320°F) |
Note: Continuous and intermittent service temperatures above refer to oxidation and scaling resistance limits published in ASM Handbook data. For pressure piping design, allowable temperatures and stress values are governed by the applicable code (ASME B31.3 Table A-1, ASME Section II Part D) and will be lower. Consult your project code before specifying for elevated-temperature pressure service.
The density of stainless steel 316L (8.0 g/cm³) is the figure used in all weight-chart calculations below, and is also the basis for our Steel Weight Calculator.
Equivalent Grades of SS 316L Pipe
| Standard | UNS | Werkstoff Nr. | EN | JIS | Old BS | GOST | AFNOR |
|---|---|---|---|---|---|---|---|
| 316L | S31603 | 1.4404 / 1.4435 / 1.4436 | X2CrNiMo17-12-2 | SUS 316L | 316S11 / 316S13 | 03Ch17N14M3 | Z2CND17-12 |
A pipe ordered as TP316L, UNS S31603, 1.4404, 1.4436, SUS 316L, 03Ch17N14M3, or Z2CND17-12 is, for all practical chemistry and mechanical purposes, the same material — Amardeep Steel Centre can supply against any of these designation systems on the Mill Test Certificate.
SS 316L Pipe Size & Weight Chart
Indicative weights (kg/m) for SS 316L Seamless Pipe across common schedules. Full-range dimensions per ASME B36.19; custom sizes and lengths available on request.
| NPS | OD (mm) | Sch 10S WT (mm) | Sch 10S Wt (kg/m) | Sch 40S WT (mm) | Sch 40S Wt (kg/m) | Sch 80S WT (mm) | Sch 80S Wt (kg/m) |
|---|---|---|---|---|---|---|---|
| 1/2" | 21.3 | 2.11 | 1.08 | 2.77 | 1.27 | 3.73 | 1.62 |
| 3/4" | 26.7 | 2.11 | 1.35 | 2.87 | 1.69 | 3.91 | 2.20 |
| 1" | 33.4 | 2.77 | 2.13 | 3.38 | 2.50 | 4.55 | 3.24 |
| 1½" | 48.3 | 2.77 | 3.16 | 3.68 | 4.05 | 5.08 | 5.41 |
| 2" | 60.3 | 2.77 | 3.93 | 3.91 | 5.44 | 5.54 | 7.48 |
| 3" | 88.9 | 3.05 | 6.55 | 5.49 | 11.29 | 7.62 | 15.27 |
| 4" | 114.3 | 3.05 | 8.50 | 6.02 | 16.07 | 8.56 | 22.32 |
| 6" | 168.3 | 3.40 | 13.40 | 7.11 | 28.26 | 10.97 | 42.56 |
| 8" | 219.1 | 3.76 | 19.80 | 8.18 | 42.55 | 12.70 | 64.63 |
| 10" | 273.1 | 4.19 | 27.50 | 9.27 | 60.29 | 12.70 | 81.53 |
| 12" | 323.9 | 4.57 | 35.90 | 9.53 | 73.85 | 12.70 | 97.44 |
Need a different size or schedule? Use our Steel Weight Calculator, or Request a Quote with your exact bill of materials.
SS 316L Pipe Schedule Chart (5S to XXS)
All values in mm wall thickness. Per ASME B36.19.
| NB | OD (mm) | Sch 5S | Sch 10S | Sch 40S | Sch 80S | Sch 160S | Sch XXS |
|---|---|---|---|---|---|---|---|
| 1/2" | 21.3 | 1.65 | 2.11 | 2.77 | 3.73 | 4.75 | 7.47 |
| 3/4" | 26.7 | 1.65 | 2.11 | 2.87 | 3.91 | 5.54 | 7.82 |
| 1" | 33.4 | 1.65 | 2.77 | 3.38 | 4.55 | 6.35 | 9.09 |
| 1½" | 48.3 | 1.65 | 2.77 | 3.68 | 5.08 | 7.14 | 10.16 |
| 2" | 60.3 | 1.65 | 2.77 | 3.91 | 5.54 | 8.74 | 11.07 |
| 3" | 88.9 | 2.11 | 3.05 | 5.49 | 7.62 | 11.10 | 15.24 |
| 4" | 114.3 | 2.11 | 3.05 | 6.02 | 8.56 | 13.49 | 17.12 |
| 6" | 168.3 | 2.77 | 3.40 | 7.11 | 10.97 | 18.26 | 21.95 |
| 8" | 219.1 | 2.77 | 3.76 | 8.18 | 12.70 | 23.01 | 22.23 |
| 10" | 273.1 | 3.40 | 4.19 | 9.27 | 12.70 | 28.58 | 25.40 |
| 12" | 323.9 | 3.96 | 4.57 | 9.53 | 12.70 | 33.32 | 25.40 |
SS 316L Welded/EFW Pipe is also available in SCH 20, 30, 60, 120, 140 for large-diameter sizes 14" NB and above — contact us for the full extended chart.
SS 316L Pipe Pressure Rating Chart (Allowable Working Pressure at 20°C)
The following indicative values are calculated per ASME B31.3 using published TP316L allowable stress (138 MPa / 20,000 psi at 20°C). For code-compliant design, calculate per the project code using mill-certified wall thickness and SMYS from the MTC.
| NPS | Sch 10S — Approx. Pressure (bar) | Sch 40S — Approx. Pressure (bar) | Sch 80S — Approx. Pressure (bar) |
|---|---|---|---|
| 1/2" | ~60 | ~105 | ~160 |
| 1" | ~55 | ~95 | ~145 |
| 2" | ~45 | ~72 | ~108 |
| 4" | ~26 | ~57 | ~88 |
| 6" | ~22 | ~45 | ~74 |
| 8" | ~19 | ~40 | ~66 |
Contact Amardeep Steel Centre for pressure ratings at elevated temperatures or for specific project code requirements.
Types of Stainless Steel 316L Pipes & Tubes Available
- SS 316L Seamless Pipe & Tube — single-piece extruded/drawn construction, maximum strength, used for high-pressure and critical service (1/2" – 16" NB).
- SS 316L Welded Pipe (ERW) — Electric Resistance Welded, cost-effective for structural and low/medium-pressure corrosive service (1/2" – 24" NB).
- SS 316L EFW / LSAW Pipe — Electric Fusion Welded / Longitudinal Submerged Arc Welded, for large-diameter applications (6" – 100" NB).
- SS 316L Fabricated Pipe Spools — custom bends, reducers, and flanged assemblies built from standard pipe per project drawings.
- SS 316L Coil Tubing & U-Tubes — for heat exchangers, instrumentation, and process control loops.
- By Shape: Round, Square, Rectangular, Oval, Hexagonal, and Hydraulic tube.
- By Finish: Annealed & Pickled (AP), Bright Annealed (BA), Mechanically Polished (No.4/No.8 Mirror), Electro-Polished (EP).
Seamless vs Welded SS 316L Pipe — Which to Choose?
| Factor | SS 316L Seamless Pipe | SS 316L Welded (ERW/EFW) Pipe |
|---|---|---|
| Construction | Drawn from a solid billet, no weld seam | Formed from plate/strip with a longitudinal weld |
| Size Range | 1/2" – 16" NB | 1/2" – 100" NB |
| Pressure Rating | Generally higher for a given wall thickness | Slightly lower; compensated with thicker wall or higher schedule |
| Dimensional Accuracy | Tighter OD/WT tolerances | Wider tolerances, but improving with modern ERW/LSAW mills |
| Typical Use | High-pressure, critical, or hygienic process lines | Structural piping, large-diameter transport lines, low/medium-pressure corrosive service |
| Cost | Higher per kg | More economical, especially above 6" NB |
Guidance: For critical pressure piping, instrumentation, and hygienic process lines under 16" NB, SS 316L Seamless Pipe is typically specified. For structural applications, large-diameter pipelines, and general corrosive service, SS 316L Welded/EFW Pipe offers equivalent corrosion performance at a lower delivered cost — the weld is fully compatible with TP316L’s low-carbon chemistry, so post-weld annealing is generally not required.
Read our detailed blog on Seamless vs Welded Pipe for Industrial Applications for further guidance.
TP316 vs TP316L — Key Differences
| Parameter | TP316 (Standard) | TP316L (Low Carbon) |
|---|---|---|
| Maximum Carbon Content | 0.08% | 0.03% |
| Carbide Precipitation on Welding | Higher risk | Minimal — generally no PWHT required |
| Intergranular Corrosion Resistance (welded) | Lower | Higher |
| Tensile / Yield Strength | Marginally higher | Marginally lower (485/170 MPa min per ASTM A312 Table 3) |
| High-Temperature Creep Strength | Better above ~500°C | Slightly lower at sustained high temperature |
| Best Suited For | Components requiring slightly higher strength/creep resistance, not heavily welded | Welded fabrications, chemical processing, pharma, food & beverage, marine piping |
In short: if a 316L pipe will be field-welded or used in a corrosive, chloride-rich environment, TP316L is the safer specification. If the application demands marginally higher sustained-temperature strength and welding is minimal, TP316 may be specified instead. Amardeep Steel Centre stocks both Stainless Steel 316 Pipes & Tubes and Stainless Steel 316L Pipes & Tubes — talk to our team if you’re unsure which grade your project requires.
Manufacturing Process of SS 316L Pipes & Tubes
- Melting & Casting: 316L chemistry is achieved via electric arc furnace melting with argon-oxygen decarburization (AOD) refining to achieve the 0.03% maximum carbon specified in ASTM A312 TP316L, cast into billets/slabs.
- Hot Working: Billets are extruded or hot-rolled into hollow shells (seamless route) or hot/cold-rolled into strip/plate (welded route).
- Cold Drawing: Seamless tubes/pipes are cold-drawn over a mandrel to final dimensions for tighter tolerances and improved surface finish.
- Welding (ERW / EFW / LSAW): For welded pipe, strip or plate is roll-formed and longitudinally welded using TIG, MIG/MAG, plasma, or submerged-arc processes, depending on diameter and wall thickness.
- Heat Treatment: Annealing and quenching to restore the austenitic structure and relieve work-hardening from cold forming/welding.
- Pickling & Surface Finishing: Acid pickling removes scale; further finishing (bright annealing, mechanical polishing, electro-polishing) is applied per the required surface finish.
- Sizing, Cutting & End Finishing: Pipes are cut to single/double random or fixed lengths and end-finished (plain, beveled, threaded).
- Testing & Marking: Each lot undergoes chemical, mechanical, and dimensional testing before stenciling/marking and final packing.
Testing & Inspection
Every batch of SS 316L Pipe & Tube supplied by Amardeep Steel Centre is tested and documented per ASTM A312/A213/A249 requirements:
- Chemical Analysis (PMI) — Positive Material Identification (PMI) is conducted on every lot using XRF or OES equipment to verify UNS S31603 chemistry, including the critical 0.03% carbon maximum.
- Mechanical Testing — tensile, yield, elongation, and hardness tests per heat/lot.
- Hydrostatic Testing — pressure testing of seamless and welded pipe per ASTM A312.
- Non-Destructive Testing (NDT) — radiography (RT), ultrasonic testing (UT), and eddy current testing (ET) for welded pipe seams.
- Flattening, Flaring & Bend Tests — for tube products per ASTM A213/A249.
- Visual & Dimensional Inspection — OD, WT, length, straightness, and surface checks.
- Third-Party Inspection — SGS, Bureau Veritas, TUV, Lloyd’s Register, or client-nominated agencies available on request.
- Documentation — Mill Test Certificate per EN 10204 Type 3.1 (standard) or 3.2, IBR Form III-D for boiler/pressure applications in India, and NABL-accredited lab reports where required.
Surface Finish Options
| Finish Code | Description | Typical OD Ra | Typical ID Ra |
|---|---|---|---|
| AP | Annealed & Pickled | ~1.0 µm or not defined | Not defined |
| BA | Bright Annealed | 0.8 µm | 0.5–1.0 µm |
| MP | Mechanical Polish (No.4 / No.8 Mirror) | 0.8 µm | 0.5–1.0 µm |
| EP | Electro-Polished | 0.8 µm | 0.13–0.38 µm |
| 2B | Standard Mill Finish | — | — |
Mirror (No.8) and electro-polished finishes are commonly specified for pharmaceutical, food-grade, and sanitary tubing applications, where a smooth interior surface minimizes product adhesion and simplifies cleaning/sterilization. For sanitary tube products, see our Welded Austenitic SS Sanitary Tubing page.
Applications of Stainless Steel 316L Pipes & Tubes
- Process and transfer piping for corrosive chemicals and acids
- Heat exchanger and condenser tubing
- Pharmaceutical and food-grade sanitary piping
- Marine and offshore piping, seawater lines, and boat fittings
- Instrumentation and hydraulic tubing
- Architectural railings, facades, and structural tube in coastal/polluted environments
- Pressure vessels, columns, and reactors
- Boiler and IBR-compliant piping (with appropriate certification)
- Pulp & Paper Industry: Digesters, bleaching equipment, and white liquor piping where chloride concentrations require 316L over 304.
Industries We Serve
| Industry | Why SS 316L |
|---|---|
| Chemical & Petrochemical | Resists a wide range of acids, alkalis, and chlorides; weldable without losing corrosion resistance |
| Pharmaceutical | Mirror/electro-polished finishes meet hygienic processing requirements |
| Food & Beverage | Smooth, cleanable surfaces; resistant to CIP/SIP cleaning chemicals |
| Marine & Shipbuilding | Pitting/crevice resistance in seawater and saline atmospheres |
| Oil & Gas | Performs in sour and chloride-bearing service environments |
| Power & Boiler | IBR-certifiable for steam and feedwater piping |
| Construction & Architecture | Corrosion resistance with low maintenance for exposed structures |
| Pulp & Paper | 316L preferred over 304 where chloride concentrations are elevated in bleaching and digester systems |
SS 316L Pipe Price List
The table below gives indicative price ranges for budgeting purposes only. Final 316L stainless steel pipe price depends on current nickel/molybdenum (LME) rates, exact size/schedule, finish, certification, and order volume. Because raw material costs change frequently, please request a live quote for project-specific pricing.
| Product | Indicative Price Range |
|---|---|
| SS 316L Seamless Pipe (ASTM A312 TP316L) | Available on request — varies by size/schedule |
| SS 316L Welded/ERW Pipe | Available on request — generally more economical than seamless |
| SS 316L Seamless Tube (ASTM A213 TP316L) | Available on request |
| SS 316L Welded Tube (ASTM A249 TP316L) | Available on request |
| SS 316L Pipe — Polished/Mirror Finish | Available on request — premium over standard 2B/AP finish |
Export Capability & Countries We Serve
Operating from our Mumbai facility, Amardeep Steel Centre exports SS 316L Pipes & Tubes worldwide to 50+ countries, with established logistics and documentation experience covering the Middle East (UAE, Saudi Arabia, Qatar, Oman), Africa, Europe, Southeast Asia, and the Americas. Export shipments include full documentation — commercial invoice, packing list, certificate of origin, Mill Test Certificate (EN 10204 3.1), and, where required, IBR or third-party inspection certificates to support customs clearance and project compliance in the destination country.
Packaging & Marking
- Packing: Wooden boxes/cases, bundles with steel strapping, plastic end-caps and wrapping for corrosion protection during transit or as per customer specification.
- Marking: Each SS 316L pipe is marked with grade, size (NB/OD/WT), schedule, specification (e.g., ASTM A312 TP316L), heat/lot number, and manufacturer’s identification for full traceability.
- Export Packing: Seaworthy export packing in wooden cases or bundles, suitable for container shipment, with customized marking available on request.
Certifications & Quality Documentation
- Mill Test Certificate (MTC) per EN 10204 Type 3.1 supplied as standard with every order; Type 3.2 (third-party witnessed) available on request.
- IBR Form III-D for boiler and pressure applications under Indian Boiler Regulations.
- Third-Party Inspection: SGS, Bureau Veritas, TUV, Lloyd’s Register, or client-nominated agencies.
- NABL-Accredited Laboratory Reports for chemical and mechanical test verification.
- Quality System: manufacturing and supply controlled under ISO 9001:2015 quality management practices.
Amardeep Steel Centre has been supplying stainless steel pipes and tubes to engineering projects across 50+ countries. Our quality management practices are maintained under ISO 9001:2015.
Related Products
- Stainless Steel 316 Pipes & Tubes
- Stainless Steel 316H Pipes & Tubes
- Stainless Steel 316Ti Pipes & Tubes
- Stainless Steel 316/316L Pipe Fittings
- Stainless Steel 316L Flanges
- Stainless Steel 316L Buttweld Fittings
- Stainless Steel 316L Forged Fittings
- Stainless Steel 316L Coil Tubing
- Welded Austenitic SS Tube – ASTM A249/A269
- Stainless Steel 304L Pipes & Tubes
- Stainless Steel 904L Pipes & Tubes
Further reading: 304 vs 316 Stainless Steel · What is Stainless Steel 316? Uses, Grades & Composition · Density of Stainless Steel 316 · Difference Between Stainless Steel Pipe and Tube
Frequently Asked Questions - Stainless Steel 316L Pipes & Tubes
What is Stainless Steel 316L Pipe?
Stainless Steel 316L Pipe is a low-carbon (0.03% max) austenitic stainless steel pipe made from a chromium-nickel-molybdenum alloy (UNS S31603), manufactured to ASTM A312 TP316L. The low carbon content prevents carbide precipitation during welding, giving it excellent resistance to intergranular and pitting corrosion.
What is the difference between 316 and 316L stainless steel pipe?
The main difference is carbon content: standard 316 allows up to 0.08% carbon, while 316L is limited to 0.03%. This makes 316L more resistant to corrosion after welding, with only a marginal reduction in tensile and yield strength compared to standard 316.
What is ASTM A312 TP316L?
ASTM A312 is the standard specification for seamless and welded austenitic stainless steel pipe. TP316L (Type 316L) is the low-carbon 316 grade within that standard, equivalent to UNS S31603 and Werkstoff 1.4404/1.4435/1.4436.
What is the price of SS 316L pipe per kg?
SS 316L pipe price per kg depends on current nickel and molybdenum (LME) prices, pipe size, schedule, manufacturing type (seamless vs. welded), surface finish, and certification requirements. Because raw material prices change frequently, contact us for today’s price based on your specific requirement.
What sizes are available in SS 316L seamless and welded pipe?
SS 316L Seamless Pipe is available from 1/2" to 16" NB, SS 316L ERW/Welded Pipe from 1/2" to 24" NB, and SS 316L EFW/LSAW Pipe from 6" to 100" NB, across schedules 5S to XXS.
Is stainless steel 316L pipe magnetic?
In its standard austenitic (annealed) condition, SS 316L pipe is essentially non-magnetic or only very weakly magnetic. Cold working during manufacturing (such as drawing or bending) can introduce slight magnetism in localized areas due to partial transformation to martensite.
What is the maximum service temperature for SS 316L pipe?
SS 316L pipe can be used continuously up to 870°C (1600°F) and intermittently up to 925°C (1700°F) before scaling, and is also suitable for cryogenic service down to −196°C (−320°F).
What is the difference between seamless and welded 316L pipe?
Seamless 316L pipe is drawn from a solid billet with no weld seam, offering higher pressure ratings and tighter tolerances, typically used up to 16" NB. Welded (ERW/EFW) 316L pipe is formed from plate or strip with a longitudinal weld, available up to 100" NB, and is generally more economical for structural and large-diameter applications.
What certificates are provided with SS 316L pipe?
Every order is supplied with a Mill Test Certificate per EN 10204 Type 3.1 as standard. IBR Form III-D (for boiler/pressure applications in India), EN 10204 Type 3.2 (third-party witnessed certificates), and inspection reports from agencies such as SGS, Bureau Veritas, TUV, or Lloyd’s Register are available on request.
Does Amardeep Steel export SS 316L pipes internationally?
Yes. Amardeep Steel Centre exports Stainless Steel 316L Pipes & Tubes from Mumbai to clients across the Middle East, Africa, Europe, Southeast Asia, and the Americas, with complete export documentation including commercial invoices, certificates of origin, and Mill Test Certificates.
Can SS 316L pipe be used in sulphuric acid service?
SS 316L pipe offers good resistance to dilute sulphuric acid (below 10% concentration at ambient temperature) but is not recommended for concentrated H&sub2;SO&sub4; or above 60°C. For concentrated acid service, consider Alloy 20 (UNS N08020) or 904L (UNS N08904). Consult Amardeep Steel’s technical team for a service-specific grade recommendation.
Get a Competitive Quote for Stainless Steel 316L Pipes & Tubes
Amardeep Steel Centre supplies SS 316L Pipe & Tube including 316 ss tubing, stainless steel 316L tube, and all forms of 316L stainless steel pipes with complete documentation including EN 10204 3.1 MTC, IBR Form III-D, and third-party inspection on request. Ready stock available in Mumbai with worldwide export capability to 50+ countries.