316 Stainless Steel Square Bar
Stellanox Steel offers corrosion-resistant 316 Stainless Steel Square Bars, designed for high-performance applications in harsh environments such as marine, chemical processing, and pharmaceutical industries. The addition of molybdenum significantly enhances resistance to pitting, crevice corrosion, and chloride attacks, making this bar ideal for submerged and sanitary use.
316 square bars are widely preferred for their strength, non-reactive surface, and long-term reliability in structurally demanding and corrosive conditions.
What is 316 Stainless Steel Square Bar?
316 Stainless Steel Square Bar is a solid, square-shaped stainless bar made from an austenitic alloy containing 16–18% chromium, 10–14% nickel, and 2–3% molybdenum. This combination provides superior corrosion resistance compared to 304, especially in chloride-rich environments. Its low carbon counterpart, 316L, is often used for welding and high-purity applications to minimize the risk of weld decay.
316 square bars are ideal for structural supports, precision-machined components, and hygienic installations.
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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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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 Stainless Steel Square Bar
- Enhanced Corrosion Resistance: Performs exceptionally in saltwater, acidic, and chlorinated environments.
- Molybdenum Addition: Improves resistance to pitting and crevice corrosion.
- Sanitary Finish: Ideal for cleanrooms, food processing, and pharmaceutical systems.
- Weldable (316L): Low carbon version prevents intergranular corrosion after welding.
- Non-Magnetic (Annealed): Slight magnetism may develop after cold working.
- Versatile and Durable: Withstands mechanical and thermal stress.
Specification Chart – 316 Stainless Steel Square Bar
| Property | Details |
|---|---|
| Grade | 316 / 316L (UNS S31600 / S31603) |
| Standards | ASTM A276, ASTM A479, EN 10088-3 |
| Size Range | 6 mm to 100 mm |
| Length | Up to 6 meters or custom cut |
| Finish | Bright, Polished, Hot Rolled, Cold Drawn |
| Tolerances | h11, h12 (as required) |
Chemical Composition – 316 / 316L Stainless Steel Square Bar
| Element | Composition (%) |
|---|---|
| Chromium (Cr) | 16.0 – 18.0 |
| Nickel (Ni) | 10.0 – 14.0 |
| Molybdenum (Mo) | 2.0 – 3.0 |
| Carbon (C) | ≤ 0.08 (316), ≤ 0.03 (316L) |
| Manganese (Mn) | ≤ 2.00 |
| Silicon (Si) | ≤ 1.00 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.030 |
| Iron (Fe) | Balance |
Mechanical Properties – 316 / 316L Stainless Steel Square Bar
| Property | Value |
|---|---|
| Tensile Strength (MPa) | ≥ 515 |
| Yield Strength (MPa) | ≥ 205 |
| Elongation (%) | ≥ 40 |
| Hardness (HRB) | ≤ 95 (Annealed) |
| Density | 8.00 g/cm³ |
Equivalent Grades – 316 / 316L Stainless Steel Square Bar
| Standard | Grade |
|---|---|
| ASTM | 316 / 316L |
| EN | 1.4401 / 1.4404 |
| JIS | SUS 316 / SUS 316L |
| UNS | S31600 / S31603 |
| DIN | X5CrNiMo17-12-2 / X2CrNiMo17-12-2 |
Applications of 316 Stainless Steel Square Bar
- Marine and Underwater Structures
- Food and Pharmaceutical Processing Units
- Heat Exchangers and Evaporators
- Tanks and Pressure Vessels
- Architectural and Decorative Hardware
- Chemical and Petrochemical Equipment
Benefits of 316 Stainless Steel Square Bar
- Superior resistance to chemical attack and chloride corrosion
- Polished surface ideal for cleanroom and food-grade use
- Exceptional weldability and formability
- Non-reactive and long-lasting under thermal stress
- Great choice for submerged and saline installations
- Meets hygienic and structural integrity standards
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