AISI 316 Stainless Steel Round Bar
What is AISI 316 Stainless Steel Round Bar?
If you are looking for in-stock AISI 316 stainless steel round bars, you are likely looking for a high-quality, corrosion-resistant, and durable stainless steel bar stock suitable for machining, construction, or marine applications. AISI 316 (EN 1.4401 / UNS S31600) is a molybdenum-containing austenitic stainless steel, renowned for its excellent resistance to chlorides and acids, making it ideal for equipment in the chemical, shipbuilding, and food industries.
Gnee offers a full range of AISI 316 stainless steel round bars, ranging in size from Ø3 mm to 400 mm, and provides surface treatments such as hot rolling, cold drawing, centerless grinding, or polishing. In addition to round bars, Gnee also supplies AISI 316 stainless steel square bars (6×6 mm to 150×150 mm), flat bars (width 10–200 mm, thickness 3–50 mm), and hexagonal bars (8–60 mm across sides).
All products conform to ASTM A276 and ASTM A479 standards. Each batch is ultrasonically tested, fully traceable, and certified to EN 10204 3.1.
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AISI 316 Stainless Steel Round Bar Specification
| Property | Specification |
|---|---|
| Standard | ASTM A276 / ASTM A479 / EN 10088 |
| Grade | AISI 316 / EN 1.4401 / UNS S31600 |
| Type | Hot Rolled, Cold Drawn, Centerless Ground |
| Diameter Range | 3 mm – 400 mm |
| Length | 1 m – 6 m (custom cut available) |
| Finish | Bright, Peeled, Polished, Black |
| Density | 8.0 g/cm³ |
| Tensile Strength | ≥ 515 MPa |
| Yield Strength (0.2%) | ≥ 205 MPa |
| Elongation (%) | ≥ 40 |
| Hardness (HB) | ≤ 217 |
| Melting Range | 1370–1400°C |
Applications
Marine Engineering – Shafts, propeller components, fasteners
Chemical Industry – Heat exchangers, valves, pressure vessels
Food & Beverage Equipment – Processing machinery, mixers, storage tanks
Architectural Projects – Railings, structural supports, decorative trims
Medical & Pharmaceutical Equipment – Sterile components and fixtures
Is AISI 316 round bar magnetic?
No, it's generally non-magnetic in the annealed condition, but may become slightly magnetic after cold working.
What's the difference between 304 and 316 stainless steel round bars?
The main difference is that 316 stainless steel contains molybdenum, which makes it significantly more resistant to corrosion, especially in chloride-rich environments like saltwater. Because of this added alloy, 316 is more expensive, while 304 is more affordable and suitable for general, less corrosive applications.
AISI 316 Stainless Steel Round Bar Price per kg (Reference)
| Diameter (mm) | Condition | Approx. Price (USD/kg) |
|---|---|---|
| 10 – 25 mm | Cold Drawn, Polished | $3.90 – $4.30 |
| 26 – 50 mm | Hot Rolled, Peeled | $4.00 – $4.60 |
| 51 – 100 mm | Hot Rolled, Annealed | $4.20 – $4.80 |
| 101 – 200 mm | Forged | $4.50 – $5.20 |
Prices may vary depending on surface finish, diameter tolerance, and order quantity.Bulk orders qualify for factory-direct discounts and CIF shipping offers.Email: sales@gneestainless.com
Why Choose Gnee for AISI 316 Stainless Steel Round Bars
Large inventory in stock – Immediate shipment of standard sizes
Processing services – Cutting, polishing, threading, machining
Global shipping – CIF, FOB, and EXW terms available
Quality assurance – ISO, SGS, and BV certified products
Competitive factory prices – Direct mill sourcing, bulk discounts
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