310S Stainless Steel Round Bar 1mm 2mm 3mm 4mm 5mm 6mm 8mm 10mm 12mm 16mm 20mm 25mm
Product Spotlights
Hemaokang Steel (Shandong) Co., Ltd. is proud to offer high-quality 310S Stainless Steel Round Bars in a comprehensive range of diameters from 1mm to 25mm. As a company with an annual export value exceeding US$50 million and a dedicated team of 51–100 professionals, we ensure that every round bar meets rigorous international standards. Our 310S grade is engineered for exceptional performance in high-temperature environments, combining superior oxidation resistance with excellent creep strength. Whether you need precision components for industrial furnaces or durable shafts for chemical processing, our round bars deliver consistent reliability and long service life.
Manufactured in our ISO9001-certified facility in Liaocheng, Shandong, these bars undergo strict quality control from raw material selection to final inspection. The 310S alloy (UNS S31008) contains elevated chromium and nickel content, providing outstanding resistance to scaling and corrosion at temperatures up to 1150°C. Our stock covers a wide spectrum of diameters—1mm, 2mm, 3mm, 4mm, 5mm, 6mm, 8mm, 10mm, 12mm, 16mm, 20mm, and 25mm—ensuring you find the exact size for your application. We also offer customization in length, surface finish, and tolerance to meet specific project requirements.
Key Features & Technical Specifications
- High-Temperature Strength: Maintains mechanical integrity up to 1150°C, ideal for furnace rollers, radiant tubes, and heat treatment baskets.
- Oxidation & Corrosion Resistance: Excellent resistance to scaling and aqueous corrosion, suitable for petrochemical and power generation industries.
- Wide Diameter Range: Available from 1mm (micro-precision) to 25mm (heavy-duty structural), with intermediate sizes in stock.
- Dimensional Accuracy: Tolerances meet ASTM A276 h9/h11 standards, with tighter tolerances available upon request.
- Versatile Surface Finishes: Choose from bright (drawn), pickled, turned, or black finish to suit your fabrication or aesthetic needs.
- Custom Lengths: Standard 3m or 6m bars, or cut to your exact specifications (e.g., 100mm, 500mm, 1m).
- Traceability & Certification: Mill test certificates supplied with every batch, ensuring full material traceability.
| Parameter | Specification |
|---|---|
| Material Grade | 310S (UNS S31008, 1.4845) |
| Diameter Range | 1mm, 2mm, 3mm, 4mm, 5mm, 6mm, 8mm, 10mm, 12mm, 16mm, 20mm, 25mm |
| Length | 3000mm / 6000mm (custom lengths available) |
| Surface Finish | Bright, Pickled, Turned, Black |
| Tolerance | ASTM A276 h9/h11 (customizable) |
| Standard | ASTM A276, A582, A484, EN 10088 |
| Packaging | Bundled, strapped, wrapped in waterproof paper, or as per customer request |
Benefits to Your Business
- Reduced Downtime: The high creep and rupture strength of 310S minimizes failure in cyclic heating applications, extending equipment life.
- Cost Efficiency: Unlike higher-alloy grades, 310S offers a balanced performance-to-cost ratio, making it a economical choice for many industrial uses.
- Ease of Fabrication: Good machinability and weldability allow for straightforward cutting, drilling, and welding into complex parts.
- Global Compatibility: Meets international standards (ASTM, EN) and is accepted in markets across North America, Europe, Asia, and Oceania.
- Just-in-Time Delivery: With a large inventory and fast turnaround from Qingdao port, we can ship small samples or bulk orders within weeks.
At Hemaokang Steel, we combine decades of collective experience with a modern ISO9001-certified production system. Our annual export volume of US$50–100 million reflects the trust placed in us by customers in over 15 major markets worldwide. Every 310S round bar is backed by rigorous testing—including chemical composition analysis, mechanical property verification, and dimensional inspection—ensuring that you receive material that performs exactly as specified.
We invite you to experience the reliability of our supply chain: from the moment you place an inquiry to the final delivery at your doorstep, our dedicated sales team provides clear communication, competitive pricing, and professional after-sales support. Whether you need a single bar for prototyping or a container load for continuous production, Hemaokang Steel is your trusted partner for 310S stainless steel round bars.
Contact us today to request a quote, discuss custom specifications, or request free samples. Let us help you achieve superior performance in your high-temperature applications.
Frequently Asked Questions
Q1: What is the maximum temperature 310S round bars can withstand?
310S stainless steel can resist oxidation up to 1150°C (2100°F) in continuous service, and up to 1035°C (1900°F) in intermittent service. However, actual performance depends on the environment (e.g., oxidizing, reducing, or carburizing atmospheres).
Q2: Do you offer cutting services for non-standard lengths?
Yes, we can cut the bars to your required lengths, such as 100mm, 500mm, or 1.5m. Please specify your desired length during order placement. There may be a small cutting fee for very short pieces.
Q3: What surface finishes are available and which is best for welding?
We offer bright (cold drawn), pickled, turned, and black finishes. Bright finish is commonly used for machining, while pickled finish removes scale and is preferred for welding applications to minimize contamination. Turned surface provides a smooth, precise diameter.
Q4: Is the material traceable and do you provide mill test certificates?
Absolutely. Every batch is supplied with a mill test certificate (MTC) that includes chemical composition, mechanical properties, and heat number. Traceability is fully maintained from melt to final product.
Q5: What is the typical lead time for an order of 1 ton of 310S round bars?
For standard diameters (1–25mm) and lengths, lead time is typically 7–15 working days after confirmation of order and payment. Rush orders may be possible subject to stock availability.
Q6: Can you supply bars with a tighter tolerance than h9?
Yes, we can customize tolerances to h7 or even h6 upon request. However, tighter tolerances may affect pricing and lead time. Please consult our sales team for feasibility.
Q7: Which industries commonly use 310S round bars?
Typical applications include furnace parts (radiant tubes, muffles, retorts), heat exchangers, petrochemical piping, thermal processing equipment, cement kilns, and power generation components where high-temperature strength and corrosion resistance are critical.
Q8: Do you offer free samples for testing?
Yes, we can provide small samples (e.g., 100mm length of a given diameter) for evaluation. The customer usually pays for shipping, but the samples themselves are free. Contact us to arrange a sample request.
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