The 316 / 316L Welded Pipes made of Stainless Steel have a high corrosion resistance, strength, and reliability and can be used in various industrial sectors. Metinox Overseas has become one of the finest manufacturers, suppliers and exporters of SS 316/316L pipes and we produce the best quality welded and seamless pipe system which is in accordance with all standards of the international standards. These pipes are made from superior quality molybdenum-bearing austenitic stainless steel and are produced under most stringent quality control procedures as per national and international specifications. Our SS 316 / 316L Welded Pipes are available in a wide range of sizes, schedules, wall thicknesses, lengths, and end finishes, and these can also be made available in customized shapes and specifications in accordance with the requirements of the project drawn from varied industries.
Compared to other grades, 316 and 316L SS alloys have higher content of nickel and molybdenum; this results in a marked increase in resistance against pitting, crevice corrosion, and oxidation. This is especially applicable when the material is exposed to chloride-rich or marine environments. The low-carbon version, SS 316L, gives excellent weldability and prevents any chance of sensitization. This makes SS 316L ideal for heavy-gauge welded applications. The pipes have outstanding mechanical strength at elevated temperatures and show excellent formability and long service life. These make SS 316 / 316L Welded Pipes applicable in the fields of chemical processing, oil and gas, marine, pharmaceutical, food processing, and heat exchangers, where performance and reliability become essential.
Table of Contents
- Specifications of Stainless Steel 316 / 316L Welded Pipe
- SS UNS 31008 Welded pipes composition
- SS 316 / 316L Welded Pipes Mechanical Properties
- Dimensions & Sizes Stainless Steel 316 / 316L Welded Pipes
- Stainless Steel DIN 1.4436 Welded Tubes Equivalent Grades
- Different Types of Stainless Steel 316 / 316L Welded Pipes
- Applications / Industry Uses of Stainless Steel 316 316L Pipes
- Frequently Asked Questions (FAQ)
Specifications of Stainless Steel 316 / 316L Welded Pipe
| Specification Parameter | Technical Details & Range |
| Industry Standards | ASTM A312 / ASME SA312 |
| Welded Pipe Size | 1/2" NB to 24" NB (Standard Stock available) |
| Outside Diameter (OD) | 6.00 mm to 914.4 mm |
| Thickness Range | 0.3 mm to 50 mm |
| Schedules | SCH 5, 10, 40, 80, 80S, 160, XXS, XS |
| Type | Welded (ERW, EFW, or Plasma Arc Welded) |
| Form | Round Pipes, Square Pipes, Rectangular Pipes |
| Length | Single Random, Double Random & Custom Cut Length |
| Pipe Ends | Plain End, Beveled End, Threaded |
| Outside Finish | 2B, No.1, No.4, No.8 Mirror Finish; Custom Polished |
| Delivery Condition | Annealed & Pickled, Polished, Bright Annealed, Cold Drawn |
| EN 10216-5 (Equivalent) | 1.4401 (316) Welded Steel Pipes for pressure purposes |
| EN 10217-7 (Welded) | 1.4404 (316L) Welded Pipes for pressure purposes |
SS UNS 31008 Welded Pipes Chemical Composition
| Grade | C (%) | Mn (%) | Si (%) | P (%) | S (%) | Cr (%) | Mo (%) | Ni (%) | Fe (%) |
| SS 316 | 0.08 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 16.0 - 18.0 | 2.0 - 3.0 | 11.0 - 14.0 | 67.845 min |
| SS 316L | 0.035 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 16.0 - 18.0 | 2.0 - 3.0 | 10.0 - 14.0 | 68.89 min |
SS 316 / 316L Welded Pipes Mechanical Properties
| Property | Value (ASTM A312 / ASME SA312) |
| Tensile Strength (min) | 75,000 psi / 515 MPa |
| Yield Strength (0.2% Offset) (min) | 30,000 psi / 205 MPa |
| Elongation (min) | 35% � 40% |
| Hardness (Rockwell B) max | 95 HRB |
| Hardness (Brinell) max | 217 HB |
Dimensions & Sizes of Stainless Steel 316 / 316L Welded Pipes
| NPS (Inches) | Outside Dia (mm) | SCH 10S (mm) | SCH 40S / STD (mm) | SCH 80S / XS (mm) |
| 1/8" | 10.3 | 1.24 | 1.73 | 2.41 |
| 1/4" | 13.7 | 1.65 | 2.24 | 3.02 |
| 3/8" | 17.1 | 1.65 | 2.31 | 3.20 |
| 1/2" | 21.3 | 2.11 | 2.77 | 3.73 |
| 3/4" | 26.7 | 2.11 | 2.87 | 3.91 |
| 1" | 33.4 | 2.77 | 3.38 | 4.55 |
| 1-1/4" | 42.2 | 2.77 | 3.56 | 4.85 |
| 1-1/2" | 48.3 | 2.77 | 3.68 | 5.08 |
| 2" | 60.3 | 2.77 | 3.91 | 5.54 |
| 2-1/2" | 73.0 | 3.05 | 5.16 | 7.01 |
| 3" | 88.9 | 3.05 | 5.49 | 7.62 |
| 4" | 114.3 | 3.05 | 6.02 | 8.56 |
| 6" | 168.3 | 3.40 | 7.11 | 10.97 |
| 8" | 219.1 | 3.76 | 8.18 | 12.70 |
| 10" | 273.1 | 4.19 | 9.27 | 12.70 |
| 12" | 323.9 | 4.57 | 9.53 | 12.70 |
Stainless Steel DIN 1.4436 Welded Tubes Equivalent Grades
| Standard | UNS | Werkstoff Nr. | EN Designation | AFNOR (FR) | JIS (JP) | BS (UK) | GOST (RU) |
| SS 316 | S31600 | 1.4401 / 1.4436 | X5CrNiMo17-12-2 | Z7CND17-11-02 | SUS 316 | 316S31 / 316S33 | 08Kh17N13M2 |
| SS 316L | S31603 | 1.4404 / 1.4435 | X2CrNiMo17-12-2 | Z3CND17-11-02 | SUS 316L | 316S11 / 316S13 | 03Kh17N14M3 |
Different Types of Stainless Steel 316 / 316L Welded Pipes
Stainless 3116 316L Welded Pipes
Stainless 3116 316L Square pipes
Stainless 3116 316L Seamless Pipes
Stainless 3116 316L Round Pipes
Stainless 3116 316L rectangular pipes
Applications / Industry Uses of Stainless Steel 316 / 316L Welded Pipes
The stainless steel 316 / 316L Welded Pipes have a high resistance to corrosion, strength and also can be used in severe environments. They find extensive application in industries.
Chemical Processing
Applied in chemical plants to transport corrosive chemicals, acids and fluids. These pipes provide extended service life, as well as, dependable performance.
Oil & Gas & Petrochemical
It is common in pipelines, refineries and petrochemical plants where pipes are required to handle the high pressure, temperature and corrosive chemicals.
Marine & Offshore
Suited to the marine and coastal setting because of very high saltwater and chloride resistance. Applied in offshore platform, shipbuilding, and seawater systems.
Heat Exchangers & Boilers
Used in heat exchangers, boilers and condensers where good heat transfer and resistance to corrosion is needed.
Food & Pharmaceuticals
Ideally used in food and pharmaceutical industries as they are hygienic, clean and are not prone to contamination.
Water Treatment
Applied in treatment and desalination plants in water as they have the capacity to resist chemical corrosion as well as saline water corrosion.
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Frequently Asked Questions (FAQ)
SS 316/316L Welded Pipe is a molybdenum-bearing austenitic stainless steel pipe (2-3% Mo) made by welding 316 or 316L grade strips, offering superior corrosion resistance especially against chlorides and marine environments compared to 304/304L grades.
The primary difference is carbon content: SS 316 has up to 0.08% C while SS 316L (Low carbon) has =0.030% C. The lower carbon in 316L minimizes carbide precipitation during welding, making it ideal for heavy-gauge welded applications without post-weld annealing.
The 2-3% molybdenum content in SS 316/316L provides exceptional resistance to pitting and crevice corrosion in chloride-rich marine environments, making it the preferred choice for coastal installations, offshore platforms, and seawater applications.
Yes, SS 316L welded pipes are extensively used in pharmaceutical and biotech industries due to their superior corrosion resistance, excellent cleanability, and ability to meet stringent hygiene requirements with electropolished finishes.
SS 316/316L welded pipes from Metinox Overseas come with certifications per ASTM A312, ASME SA312, EN 10217-7, and can include Mill Test Certificates (MTC) per EN 10204 3.1/3.2, along with NACE MR0175 compliance for sour service applications.
Other Types of Stainless Steel 316 / 316L Welded Pipes
ASTM A312 / ASME SA312 SS 316 / 316L Welded Pipes Supplier & Exporter in India | Bulk SS 316 / 316L Welded Pipe Stockist | Stainless Steel UNS S31600 / S31603 Welded Pipes in All Sizes | Supplier of TP316 Welded Pipes | Steel 316 / 316L Welded Pipes | AISI 316 / 316L SS Welded Pipes | DIN 1.4401 / 1.4404 Welded Pipes
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