Stainless Steel Pipe 316L

Stainless Steel Pipes

Stainless Steel Pipe 316L

SS 316L Seamless Pipe, SS 316L Welded Pipe, ASTM A312 TP316L Round Pipe, UNS S31603 Hollow Pipe, WNR 1.4404 Polished Pipe Supplier in India.

Reliable Pipes & Tubes – Stainless Steel Pipe 316L Manufacturer & Supplier in India

Stainless Steel Pipe 316L is a low carbon version of grade 316, composed of chromium, nickel, and molybdenum. The molybdenum content enhances corrosion resistance, particularly in marine and chloride environments, while the low carbon content prevents carbide precipitation during welding. SS 316L Pipe has a minimum tensile strength of 515 MPa, a minimum yield strength of 205 MPa, and exhibits 40% elongation with a density of 8000 kg/m³.

The 316L Stainless Steel Seamless Pipe is available in sizes from ½" to 24" NB, while the welded pipe ranges from 6" to 100" NB. The 316L ERW Pipe is produced by longitudinal or spiral welding of steel strips and is used in heat exchangers, dyeing equipment, chemical containers, food processing, and architectural applications. All our pipes are supplied in annealed and pickled, bright annealed, or polished conditions to meet specific surface requirements.

The ASTM A312 TP316L Pipe can be machined, grooved, or threaded and is suitable for high-temperature service up to 870 °C. The WNR 1.4404 Polished Pipe is produced by cold rolling and offers a smooth surface finish along with improved corrosion resistance. Reliable Pipes & Tubes supplies stainless steel pipe 316L in round, square, rectangular, hydraulic, coiled, and U-shape forms to match all project specifications.

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Stainless Steel Pipe 316L Specification

Specification Details
Outside Diameter6.00 mm OD up to 914.4 mm OD, up to 24" NB available Ex-stock
Thickness Range0.3 mm – 50 mm, SCH 5, SCH 10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS
TypeSeamless / ERW / Welded / Fabricated / CDW / LSAW Pipes
FormRound, Square, Rectangular, Hydraulic, Coiled, U-Shape, Pan Cake Coils
SpecificationsASTM A312 / ASME SA312
SS 316L Seamless Pipe Size1/2" NB – 24" NB
SS 316L Welded / EFW Pipe Size6" NB – 100" NB
LengthSingle Random, Double Random & Cut Length
EndPlain End, Beveled End, Threaded
Finish2B, No.1, No.4, No.8 Mirror, Annealed & Pickled, Bright Annealed, Polished

Stainless Steel Pipe 316L Chemical Composition

Grade C Mn Si P S Cr Mo Ni N
316L 0.03 max 2.00 max 0.75 max 0.045 max 0.030 max 16.00 - 18.00 2.00 - 3.00 10.00 - 14.00 0.10 max

Mechanical Properties of Stainless Steel Pipe 316L

Grade Tensile Strength (MPa) min Yield Strength 0.2% Proof (MPa) min Elongation (% in 50mm) min Hardness (HRB) max Hardness (HB) max
316L 515 205 40 95 217

Equivalent Grades of Stainless Steel Pipe 316L

Grade UNS No British BS Euronorm No Euronorm Name Swedish SS Japanese JIS
316L S31603 304S11 1.4404 / 1.4436 X3CrNiMo17-13-3 2348 SUS 316L

Stainless Steel Pipe 316L Price List

Product Price in India (INR) Price (USD)
SS 316L Seamless Pipe (ASTM A312 TP316L)340 INR / KgUS $1000–5000 / Ton
SS 316L Welded Pipe184 INR / KgUS $700–3000 / Ton
SS 316L ERW / Polished Tube265 INR / KgUS $880–3900 / Ton

Applications of Stainless Steel Pipe 316L

  • Heat Exchangers & Condensers
  • Chemical & Petrochemical Processing Equipment
  • Pharmaceutical & Food Processing Equipment
  • Marine & Coastal Environments
  • Kitchen Benches, Sinks & Appliances
  • Architectural & Construction Applications
  • Dyeing & Textile Machinery
  • Chemical Containers & Transport Pipelines

Testing & Inspection

  • Hydrostatic Testing
  • Eddy Current Examination
  • Positive Material Identification (PMI)
  • Ultrasonic Testing
  • Chemical Composition & Spectro Analysis
  • Mechanical Properties Testing
  • Visual & Dimensional Inspection
  • Third Party Inspection
  • NABL Approved Lab Reports

Frequently Asked Questions (FAQs)

What is Stainless Steel Pipe 316L?

Stainless Steel Pipe 316L is a low carbon variant of grade 316 austenitic stainless steel containing chromium, nickel and molybdenum. The low carbon content (0.03% max) prevents carbide precipitation during welding, making it ideal for demanding corrosive environments.

What is the difference between SS 316 and SS 316L Pipe?

SS 316L has a lower carbon content (0.03% max) compared to SS 316 (0.08% max). This reduces the risk of intergranular corrosion after welding. Both grades have similar corrosion resistance properties, but 316L is preferred for welded fabrications.

What is the UNS and WERKSTOFF NR. designation for SS 316L?

SS 316L has the UNS designation S31603, Werkstoff Nr. 1.4404 (or 1.4435) per DIN/EN standards, and is equivalent to SUS 316L in JIS standards.

What are the available size ranges for Stainless Steel Pipe 316L?

SS 316L seamless pipes are available from 1/2" to 24" NB, welded/EFW pipes from 6" to 100" NB, and the overall OD range is 6 mm to 914.4 mm with wall thicknesses from 0.3 mm to 50 mm.