316 / 316L Stainless Steel Tube
Stellanox Steel offers premium-grade 316 / 316L Stainless Steel Tubes, known for their exceptional corrosion resistance, particularly against chlorides and other industrial solvents. These tubes are ideal for critical applications in chemical processing, marine engineering, pharmaceuticals, and food-grade systems.
As a molybdenum-bearing austenitic stainless steel, 316 provides superior resistance to pitting and crevice corrosion. The low-carbon version, 316L, offers excellent weldability without risk of carbide precipitation, making it perfect for welded tubing in high-purity and corrosive environments.
What is 316 / 316L Stainless Steel Tube?
316 Stainless Steel Tubes are alloyed with 16–18% chromium, 10–14% nickel, and 2–3% molybdenum, which significantly improves their resistance to chloride attack compared to 304. 316L Stainless Steel Tubes have a maximum carbon content of 0.03%, ensuring resistance to sensitization during welding.
These tubes are ideal for aggressive industrial conditions and comply with various international standards for seamless and welded pipework.
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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 Tube
- Superior Corrosion Resistance: Withstands chlorides, acids, and saline conditions.
- Molybdenum-Enhanced Composition: Protects against pitting and crevice corrosion.
- Low Carbon Version (316L): Prevents intergranular corrosion after welding.
- Excellent Mechanical Strength: Maintains integrity under pressure and thermal cycling.
- Good Formability & Weldability: Easily machined, bent, and welded.
- Non-Magnetic in Annealed Condition: Suitable for sensitive electrical environments.
- Sanitary and Hygienic: Preferred in food, pharma, and medical applications.
Specification Chart – 316 / 316L Stainless Steel Tube
| Property | Details |
|---|---|
| Grades | 316 / 316L (UNS S31600 / S31603) |
| Standards | ASTM A269, A213, A312, A249, A554 |
| Size Range (OD) | 6 mm to 219 mm (1/8" to 8" NB) |
| Wall Thickness | 0.5 mm to 10 mm |
| Length | 6 m, 12 m, U-bent, or custom cut-to-length |
| Types | Seamless, Welded, Cold Drawn |
| Finishes | 2B, BA, No.4, Mirror (No.8), Pickled, Polished |
| End Options | Plain End (PE), Beveled End (BE), Threaded End |
| Certifications | EN 10204 3.1 / 3.2, NACE MR0175, ISO, PED |
Chemical Composition – 316 vs. 316L Stainless Steel Tube
| 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 Tube
| 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 Tube Weight Chart
| OD (mm) | Wall Thickness (mm) | Weight per Meter (kg) | Weight per 6m (kg) |
|---|---|---|---|
| 6.0 | 1.0 | 0.12 | 0.72 |
| 12.7 | 1.2 | 0.27 | 1.62 |
| 19.05 | 1.5 | 0.50 | 3.00 |
| 25.4 | 2.0 | 0.95 | 5.70 |
| 38.1 | 2.5 | 1.71 | 10.26 |
| 50.8 | 3.0 | 2.78 | 16.68 |
| 63.5 | 3.0 | 3.53 | 21.18 |
| 76.2 | 3.5 | 4.92 | 29.52 |
Applications of 316 / 316L Stainless Steel Tube
- Marine piping and boat components
- Food and beverage processing lines
- Pharmaceutical-grade water systems
- Heat exchangers and condensers
- High-purity gas and fluid transfer
- Oil & gas systems and coastal structures
- Chemical and petrochemical processing
Benefits of 316 / 316L Stainless Steel Tube
- Enhanced resistance to chlorides and industrial solvents
- Maintains integrity in high-pressure, high-temperature applications
- Ideal for sanitary and hygienic environments
- Excellent post-weld corrosion resistance (316L)
- Non-reactive and suitable for cleanroom and medical use
- 100% recyclable and environmentally friendly
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