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As a leading supplier from Hemaokang Steel (Shandong) Co., Ltd., we are proud to present our premium 316 Stainless Steel Round Bar, specifically engineered for demanding marine hardware and offshore applications. With an annual export value exceeding US$50 million and a dedicated team of 51–100 skilled professionals, we ensure every bar meets the highest standards of corrosion resistance and mechanical strength. Our factory, located in Liaocheng, Shandong, China, leverages advanced production techniques and rigorous quality control to deliver round bars in diameters from 6mm to 30mm, tailored to your project requirements.
This product is designed to withstand the harshest saltwater environments, making it an ideal choice for shipbuilding, offshore oil & gas platforms, marine hardware components, and coastal infrastructure. The 316 stainless steel grade offers superior resistance to pitting and crevice corrosion compared to standard 304, thanks to the addition of molybdenum. Whether you need precision-machined shafts, fasteners, or structural supports, our round bars provide consistent dimensional accuracy and excellent weldability.
Below, we break down the key features, specifications, and benefits to help you make an informed decision.
Key Features & Specifications
- Material Grade: 316 Stainless Steel (UNS S31600) – contains 16-18% chromium, 10-14% nickel, and 2-3% molybdenum for enhanced corrosion resistance.
- Diameter Range: 6mm to 30mm, available in increments of 1mm (other sizes upon request).
- Length Options: Standard 6 meters (random lengths also available); custom lengths acceptable.
- Surface Finish: Bright (drawn), pickled, or black finish – choose according to your machining or aesthetic needs.
- Manufacturing Standards: Compliant with ASTM A276, ASTM A484, and ISO9001:2015 quality management system.
- Mechanical Properties: Tensile strength ≥ 515 MPa, yield strength ≥ 205 MPa, elongation ≥ 40%.
- Corrosion Resistance: Excellent in chloride environments, including seawater, brine, and acidic media.
| Diameter (mm) | Weight per meter (kg) | Typical Tolerance |
|---|---|---|
| 6 | 0.222 | ±0.05mm |
| 10 | 0.617 | ±0.07mm |
| 20 | 2.47 | ±0.10mm |
| 30 | 5.55 | ±0.15mm |
Advantages for Marine & Offshore Use
- Longer Service Life: The molybdenum content significantly reduces pitting and crevice corrosion, extending the lifespan of components in saltwater.
- High Strength & Durability: Excellent tensile and yield strength ensures reliability under high stress and cyclic loading.
- Weldability & Machinability: 316 stainless steel can be easily welded using standard techniques (TIG, MIG) and machined to tight tolerances.
- Non-Magnetic: In the annealed condition, 316 stainless steel is essentially non-magnetic, an important property for certain marine instruments.
- Temperature Resistance: Suitable for both cryogenic and elevated temperature applications (up to 800°C in intermittent service).
Why Choose Hemaokang Steel?
Since our establishment in 2025, we have rapidly grown into a trusted global supplier with an annual export value of US$50 million – US$100 million. Our factory operates under ISO9001:2015 certified quality management, ensuring consistent product traceability and performance. We have shipped to markets across North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, and beyond. Each round bar is inspected for chemical composition, mechanical properties, and dimensional accuracy before dispatch. Our team of 51–100 experienced staff is dedicated to providing responsive customer service, flexible customization, and on-time delivery.
We understand that marine and offshore projects demand uncompromising quality. That’s why we offer mill test certificates (MTC) with every shipment, and we can also arrange third-party inspections (e.g., SGS, BV) upon request. When you choose Hemaokang Steel, you are partnering with a reliable manufacturer that prioritizes your project’s success.
Contact us today for a quote or to discuss your specific requirements. Let our 316 stainless steel round bars be the foundation of your next marine or offshore installation.
Frequently Asked Questions (FAQ)
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Q: What is the difference between 304 and 316 stainless steel round bars?
A: The main difference is the addition of 2-3% molybdenum in 316, which provides superior resistance to chlorides (e.g., seawater) and acidic environments. 316 is recommended for marine applications, while 304 is suitable for general indoor use. -
Q: Can you supply bars longer than 6 meters?
A: Yes, we can produce custom lengths up to 12 meters, subject to production capacity and transportation feasibility. Please specify your requirements when ordering. -
Q: Do you offer surface finishing services like polishing or grinding?
A: Yes, we provide optional surface treatments including bright polishing, centerless grinding, and pickling. These can be customized to your desired surface roughness. -
Q: What packaging is used for export to prevent corrosion during transit?
A: Each bar is individually wrapped with anti-corrosion paper, then bundled with plastic caps and steel strapping. For long sea voyages, we also offer VCI (Volatile Corrosion Inhibitor) packaging as an extra precaution. -
Q: Is the material traceable and can you provide mill test certificates?
A: Absolutely. Every batch is traceable, and we provide a mill test certificate (MTC) per EN 10204 3.1 format, showing chemical composition and mechanical properties. -
Q: What is the typical lead time for an order of 316 stainless steel round bars?
A: For standard sizes (6mm-30mm) and quantities, lead time is 15–20 working days. Custom sizes or large orders may require 25–30 days. We can expedite for urgent projects upon negotiation. -
Q: Can you supply bars with a diameter smaller than 6mm or larger than 30mm?
A: Our standard range is 6mm-30mm, but we can supply other diameters (e.g., 3mm-5mm or 31mm-50mm) on request. Please contact us to confirm availability and pricing. -
Q: Do you accept third-party inspection before shipment?
A: Yes, we welcome independent inspections by SGS, BV, or other accredited agencies. The cost can be shared or included in the total price per your request.
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