316 / 316L Stainless Steel Pipe
Stellanox Steel offers top-grade 316 / 316L Stainless Steel Pipes, engineered for enhanced corrosion resistance in aggressive environments such as marine, chemical processing, and pharmaceutical systems. These pipes are renowned for their strength, hygienic properties, and ability to withstand chlorides, making them the material of choice for demanding industrial applications.
Available in seamless and welded forms with a wide range of sizes and schedules, our 316/316L pipes deliver long-term performance, reliability, and ease of fabrication.
What is 316 / 316L Stainless Steel Pipe?
316 Stainless Steel Pipe is an austenitic alloy composed of 16–18% chromium, 10–14% nickel, and 2–3% molybdenum, which significantly improves its corrosion resistance—especially to chlorides and acidic environments. 316L, the low-carbon version of 316, prevents carbide precipitation during welding, making it ideal for thick-gauge welded sections.
Both grades are non-magnetic in the annealed condition and maintain their integrity at high and low temperatures. These pipes are widely used in fluid transport, structural frameworks, and critical process systems.
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Stainless Steel |
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Carbon Steel |
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Duplex Stainless Steel |
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Super Duplex Stainless Steel |
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Alloy Steel |
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Titanium |
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Hastelloy |
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Inconel |
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Monel |
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Aluminium |
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Copper |
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Pure Nickel |
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Flanges |
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Forged Fittings |
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Valves |
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Fasteners |
Key Features of 316 / 316L Stainless Steel Pipe
- Superior Corrosion Resistance: Performs exceptionally in marine, acidic, and chloride-rich environments.
- Molybdenum Addition: Enhances resistance to pitting and crevice corrosion.
- Excellent Weldability: 316L is ideal for welding without risk of intergranular corrosion.
- High Mechanical Strength: Supports pressure systems and load-bearing applications.
- Sanitary Surface Finish: Ideal for food, beverage, and pharmaceutical use.
- Thermal & Cryogenic Stability: Maintains strength in extreme temperature conditions.
- Available in Multiple Types: Seamless, ERW, EFW, and welded pipes.
Specification Chart – 316 / 316L Stainless Steel Pipe
| Property | Details |
|---|---|
| Grades | 316 / 316L (UNS S31600 / S31603) |
| Standards | ASTM A312, A213, A269, A358, ASME SA312 |
| Size Range | 1/8" NB to 24" NB (DN6 to DN600) |
| Wall Thickness | SCH 5, 10, 40, 80, 160, XXS |
| Lengths | 6m, 12m, or custom cut-to-length |
| Pipe Types | Seamless, Welded, ERW, EFW |
| End Options | Plain End (PE), Beveled End (BE), Threaded (TE) |
| Finish Types | Annealed, Pickled, Polished, Bright Annealed |
| Certifications | EN 10204 3.1 / 3.2, NACE MR0175, ISO, PED |
Chemical Composition – 316 vs. 316L Stainless Steel Pipe
| Element | 316 (%) | 316L (%) |
|---|---|---|
| Chromium | 16.0 – 18.0 | 16.0 – 18.0 |
| Nickel | 10.0 – 14.0 | 10.0 – 14.0 |
| Molybdenum | 2.0 – 3.0 | 2.0 – 3.0 |
| Carbon | ≤ 0.08 | ≤ 0.03 |
| Manganese | ≤ 2.0 | ≤ 2.0 |
| Silicon | ≤ 0.75 | ≤ 0.75 |
| Phosphorus | ≤ 0.045 | ≤ 0.045 |
| Sulfur | ≤ 0.030 | ≤ 0.030 |
| Iron | Balance | Balance |
Mechanical Properties – 316 / 316L Stainless Steel Pipe
| Property | 316 | 316L |
|---|---|---|
| Tensile Strength (MPa) | ≥ 515 | ≥ 485 |
| Yield Strength (MPa) | ≥ 205 | ≥ 170 |
| Elongation (%) | ≥ 40 | ≥ 40 |
| Hardness (HRB) | ≤ 95 | ≤ 95 |
| Modulus of Elasticity | 193 GPa | 193 GPa |
| Density | 8.00 g/cm³ | 8.00 g/cm³ |
Equivalent Grades
| Standard | 316 | 316L |
|---|---|---|
| ASTM | 316 | 316L |
| EN | 1.4401 | 1.4404 |
| JIS | SUS 316 | SUS 316L |
| UNS | S31600 | S31603 |
| DIN | X5CrNiMo17-12-2 | X2CrNiMo17-12-2 |
316 / 316L Stainless Steel Pipe Weight Chart
| OD (mm) | Wall Thickness (mm) | Weight per Meter (kg) | Weight per 6m (kg) |
|---|---|---|---|
| 21.3 | 2.77 | 1.27 | 7.62 |
| 33.4 | 3.38 | 2.64 | 15.84 |
| 42.2 | 3.56 | 3.68 | 22.08 |
| 48.3 | 3.68 | 4.50 | 27.00 |
| 60.3 | 3.91 | 6.25 | 37.50 |
| 73.0 | 5.16 | 10.30 | 61.80 |
| 88.9 | 5.49 | 13.28 | 79.68 |
| 114.3 | 6.02 | 20.80 | 124.80 |
Applications of 316 / 316L Stainless Steel Pipe
- Marine hardware and shipbuilding
- Chemical and petrochemical transport systems
- Water desalination plants
- Pulp and paper industry piping
- Brewery and food processing plants
- Wastewater treatment and filtration systems
- Heat exchangers and condenser tubing
- Architectural railings and support structures
Benefits of 316 / 316L Stainless Steel Pipe
- Exceptional resistance to saltwater and acidic environments
- Improved weldability and corrosion protection with 316L
- High durability in cyclic temperature and pressure conditions
- Smooth interior surface improves fluid flow and hygiene
- Compliant with sanitary and pharmaceutical-grade standards
- Long lifecycle with low maintenance costs
- Fully recyclable and eco-friendly
2025 Stellanox Steel |