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Help Center316L Stainless Steel Round Bar for Marine Hardware and Construction 1mm-30mm
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Welcome to Hemaokang Steel (Shandong) Co., Ltd. – your trusted partner for high-quality stainless steel products. As a newly established company in 2025, we have already achieved an annual export value of US$50 million to US$100 million, serving markets across North America, South America, Europe, Asia, Africa, and Oceania. Our 316L Stainless Steel Round Bar is specifically engineered for demanding marine hardware and construction applications, offering superior corrosion resistance and mechanical strength. With diameters ranging from 1mm to 30mm, this product is designed to meet the rigorous standards of professionals worldwide.
Product Overview
Our 316L stainless steel round bar is a low-carbon version of 316 stainless steel, providing enhanced resistance to intergranular corrosion after welding or stress relieving. It is ideal for environments exposed to chlorides, such as seawater, and for structural components that require high durability and longevity. The bar is manufactured under strict quality control, ensuring consistent dimensions, smooth surface finishes, and reliable performance.
Key Features & Technical Specifications
- Superior Corrosion Resistance: Excellent resistance to pitting, crevice corrosion, and stress corrosion cracking in chloride environments.
- Excellent Weldability: Low carbon content minimizes carbide precipitation during welding, maintaining corrosion resistance in the heat-affected zone.
- High Strength & Durability: Tensile strength up to 485 MPa (minimum) and yield strength of 170 MPa (minimum), suitable for structural applications.
- Wide Diameter Range: Available from 1mm to 30mm, catering to both precision components and heavy-duty construction needs.
- Customizable Lengths: Standard lengths of 6 meters, or cut to your specific requirements.
- Multiple Surface Finishes: Bright drawn, black annealed, pickled, or polished finish to match your application.
- Compliance with International Standards: Manufactured per ASTM A276, AISI 316L, and other relevant specifications.
- ISO9001 Certified: Our production process is quality-managed to ensure product consistency and reliability.
Detailed Specifications
| Parameter | Value |
| Material Grade | 316L (UNS S31603) |
| Diameter Range | 1mm - 30mm |
| Length | Customizable (standard 6000mm) |
| Tensile Strength (min) | 485 MPa |
| Yield Strength (min) | 170 MPa |
| Elongation (min) | 40% |
| Hardness (max) | HRB 95 |
| Surface Finish | Bright, Black, Pickled, Polished |
| Standard | ASTM A276, AISI 316L |
Applications & Benefits
This round bar is widely used in:
- Marine Hardware: Boat fittings, propeller shafts, rudder stocks, and deck equipment – withstands saltwater corrosion.
- Construction: Structural supports, handrails, fasteners, and architectural components – offers long-term durability in harsh environments.
- Industrial Equipment: Valves, pumps, heat exchangers, and chemical processing parts – resists acidic and alkaline media.
- Automotive & Aerospace: Exhaust systems, brackets, and fasteners – high temperature and corrosion resistance.
Customer Benefits:
- Reduced Maintenance: The low carbon content and molybdenum addition provide exceptional resistance to localized corrosion, extending service life.
- Cost-Effective: Competitive pricing without compromising quality – ideal for large-scale projects.
- Reliable Supply: With annual export capacity of up to US$100 million, we ensure stable inventory and timely delivery from Qingdao port.
- Customization: Diameter, length, and surface finish can be tailored to your exact specifications.
Trust & Reliability
At Hemaokang Steel, we are committed to excellence. Our company, located in Liaocheng, Shandong, China, employs a team of 51–100 skilled professionals and operates under ISO9001 quality management system. We have shipped to over 15 major markets worldwide, including North America, Europe, and Southeast Asia. Our dedicated quality control team ensures every bar meets strict dimensional and chemical tolerances. We invite you to experience the difference of working with a supplier that prioritizes quality, service, and long-term partnership. Contact us today for a quote or more information – your satisfaction is our mission.
Frequently Asked Questions (FAQ)
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Q1: What is the difference between 316 and 316L stainless steel?
A: 316L has a lower carbon content (max 0.03% vs. 0.08% for 316), which reduces the risk of intergranular corrosion during welding. It is preferred for welded structures and marine environments. -
Q2: Can you provide bars with a diameter smaller than 1mm or larger than 30mm?
A: Our standard range is 1mm to 30mm. For other diameters, please contact us for custom manufacturing options. -
Q3: What surface finishes are available?
A: We offer bright drawn, black annealed, pickled, and polished finishes. The bright finish is suitable for aesthetic applications, while pickled finish provides better corrosion resistance. -
Q4: Do you have certificates for the material?
A: Yes, we can provide mill test certificates (MTC) per ASTM A276. Our facility is ISO9001 certified, ensuring traceability and quality control. -
Q5: What is the typical lead time for an order?
A: For standard sizes, lead time is 7–15 days after order confirmation. Custom sizes may require 20–30 days. We ship from Qingdao port. -
Q6: Can you cut the bars to specific lengths?
A: Absolutely. We can cut to your required lengths (e.g., 100mm, 200mm, 3000mm) with precision. -
Q7: Is this product suitable for underwater applications?
A: Yes, 316L is commonly used in marine hardware due to its excellent resistance to seawater and brackish water. It is a standard choice for underwater components. -
Q8: Do you offer samples before bulk order?
A: Yes, we can provide samples for quality evaluation. Please contact us to discuss sample requests and shipping terms.
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