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Help CenterMarine Grade ASTM 316L Round Bar Chloride Resistant For Offshore & Seawater Equipment
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As a leading manufacturer in Wuxi, China, Wuxi Yansheng Technology Co., Ltd. specializes in producing high-quality marine grade ASTM 316L round bars designed specifically for offshore and seawater equipment. Our 316L round bars offer exceptional chloride resistance, making them the ideal choice for harsh marine environments where corrosion is a constant threat. With over 7 years of experience and an annual export value exceeding US$50 million, we are committed to delivering reliable, durable, and compliant stainless steel products that meet the rigorous demands of global industries.
Product Features & Technical Specifications
Our ASTM 316L round bars are manufactured from low-carbon austenitic stainless steel, which provides superior resistance to intergranular corrosion after welding and heat treatment. The molybdenum content (2-3%) significantly enhances resistance to pitting and crevice corrosion in chloride-rich environments, such as seawater, brine, and coastal atmospheres. Below are key technical parameters:
| Standard | ASTM A276 / A479, ASME SA276 / SA479 |
| Grade | 316L (UNS S31603) |
| Diameter Range | 6mm – 300mm (custom sizes available) |
| Length | 1m – 12m (cut-to-length option) |
| Surface Finish | Bright, Black, Pickled, Polished (No.4, 2B, etc.) |
| Tensile Strength | Min. 485 MPa |
| Yield Strength | Min. 170 MPa |
| Elongation | Min. 40% |
| Hardness | Max. 217 HBW |
| Corrosion Resistance | Excellent in chloride environments (PREN ≥ 24) |
Key Advantages & Customer Benefits
Chloride Resistance: Our 316L round bars are specifically formulated to resist pitting, crevice corrosion, and stress corrosion cracking in seawater and offshore applications, extending equipment lifespan and reducing maintenance costs.
Marine Grade Certification: Compliant with ASTM and ASME standards, ensuring dimensional accuracy, chemical composition, and mechanical properties meet the strictest industry requirements.
Versatile Surface Options: Available in multiple surface finishes (bright, pickled, polished) to suit different fabrication needs, including welding, machining, and architectural applications.
Customizable Dimensions: We offer diameter ranges from 6mm to 300mm and lengths up to 12m, with custom sizes available upon request to fit your specific project requirements.
Consistent Quality: Our manufacturing process is ISO 9001, ISO 14000, and OHSAS 18001 certified, ensuring every batch undergoes rigorous inspection before delivery.
Global Supply Chain: With shipments from Tianjin, Shanghai, Qingdao, and Ningbo ports, we provide fast and reliable delivery to markets across North America, South America, Europe, Asia, Africa, and Oceania.
Excellent Machinability & Weldability: Low carbon content (max 0.03%) minimizes carbide precipitation during welding, making it ideal for complex offshore structures and seawater equipment.
Long-Term Cost Efficiency: The superior corrosion resistance reduces replacement frequency and downtime, offering a lower total cost of ownership for marine infrastructure.
Applications
Offshore oil & gas platforms – structural supports, piping, and fasteners
Seawater desalination plants – pumps, valves, and heat exchangers
Shipbuilding – propeller shafts, rudder stocks, and deck fittings
Coastal infrastructure – seawalls, piers, and bridge components
Marine renewable energy – tidal turbine parts and wave energy converters
Chemical processing equipment exposed to chloride media
Trust & Credibility
Wuxi Yansheng Technology Co., Ltd. has been a trusted manufacturer since 2017, with a factory spanning 1,000–3,000 square meters and a dedicated team of 101–200 employees. We hold multiple certifications including HACCP, TL900, QS9000, SA8000, ISO9001, ISO9004, ISO17799, ISO9000, ISO14000, ISO10441, ISO16949, TS16969, ISO19011:2000, OHSAS18001, and others, reflecting our commitment to quality management, environmental responsibility, and occupational health. With an annual export value of US$50 million to US$100 million, we serve major markets across North America, South America, Europe, Asia, Africa, and Oceania. Our products are exported through major Chinese ports and are trusted by global clients in the offshore and marine sectors. We invite you to contact us for detailed specifications, samples, or customized solutions. Choose Wuxi Yansheng for reliability, durability, and professionalism in marine grade stainless steel round bars.
Frequently Asked Questions
What is the difference between 316 and 316L round bars?
316L has a lower carbon content (max 0.03%) than 316 (max 0.08%), which reduces the risk of carbide precipitation during welding, making it more suitable for welded structures in corrosive environments.Can these round bars be used in direct contact with seawater?
Yes, 316L is specifically designed for chloride-rich environments including seawater, offering excellent resistance to pitting and crevice corrosion.Do you provide cut-to-length or custom diameters?
Absolutely. We offer custom diameters from 6mm to 300mm and lengths up to 12m. Custom sizes are available upon request with short lead times.What surface finishes are available?
We offer bright, black, pickled, and polished finishes (including No.4 and 2B). The surface can be customized to your fabrication or aesthetic requirements.How do you ensure product quality?
Our manufacturing process is certified under ISO 9001, ISO 14000, and OHSAS 18001. Each batch is tested for chemical composition, mechanical properties, and dimensional accuracy with mill test certificates provided.What is the typical lead time for orders?
Standard sizes are usually shipped within 15–25 working days. Custom orders may take 20–30 working days depending on quantity and specifications.Can you supply for large-scale offshore projects?
Yes, we have the capacity to handle large volumes and have supplied for offshore platforms and seawater equipment projects globally. Our annual export value exceeds US$50 million.Do you offer free samples for quality evaluation?
Yes, we can provide samples for evaluation. Please contact our sales team to discuss the sample policy and shipping costs.
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