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Help CenterCorrosion Resistant ASTM 303 Stainless Round Bar Long Service Life For General Hardware Industry
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Wuxi Yansheng Technology Co., Ltd., a leading manufacturer established in 2017 with an annual export value exceeding US$50 million, proudly presents our Corrosion Resistant ASTM 303 Stainless Round Bar. Engineered for the general hardware industry, this product offers exceptional durability and long service life, making it a reliable choice for high-stress environments. Our rigorous quality control and advanced production facilities ensure consistent performance, helping you reduce maintenance costs and improve operational efficiency.
Key Features & Benefits
Superior Corrosion Resistance: The chromium-nickel composition of ASTM 303 provides excellent resistance to rust and oxidation, ideal for hardware exposed to moisture or chemicals.
Enhanced Machinability: With added sulfur, this grade offers superior chip formation and tool life, reducing machining time and costs.
Long Service Life: High fatigue strength and toughness ensure the bar withstands repeated stress without failure, extending equipment lifespan.
Dimensional Accuracy: Manufactured to tight tolerances (ISO h9-h11), ensuring consistent fit in automated assembly lines.
Versatile Applications: Suitable for shafts, fasteners, fittings, valves, and other general hardware components.
Customizable Options: Available in various diameters, lengths, and surface finishes to meet specific project requirements.
Technical Specifications
| Standard | ASTM A276 / A582 |
| Diameter Range | 6 mm – 300 mm |
| Length | 1 m – 6 m (custom lengths available) |
| Tensile Strength (Typical) | ≥ 620 MPa |
| Yield Strength (Typical) | ≥ 240 MPa |
| Hardness (Annealed) | ≤ 229 HB |
| Surface Finish | Bright, Polished, or Pickled |
| Corrosion Resistance | Excellent (passes ASTM A262 Practice E) |
Manufacturing & Quality Assurance
Our round bars are produced through hot rolling or cold drawing processes, followed by annealing and pickling to ensure optimal microstructure and surface quality. Every batch undergoes chemical analysis, tensile testing, and dimensional inspection. Our facility is certified under ISO9001, ISO14000, OHSAS18001, and other international standards, guaranteeing consistent quality from raw material to final product.
Why Choose Wuxi Yansheng Technology?
Scale & Capacity: With a 1,000–3,000 m² factory and 101–200 skilled employees, we can handle large-volume orders efficiently.
Global Reach: Annual export value of US$50–100 million, serving markets across North America, Europe, Asia, Oceania, and Africa.
Flexible Shipping: Conveniently located near Tianjin, Shanghai, Qingdao, and Ningbo ports, ensuring timely delivery worldwide.
Comprehensive Certifications: HACCP, TL900, QS9000, SA8000, ISO9004, ISO17799, ISO10441, ISO16949, TS16969, ISO19011:2000, and more – a testament to our commitment to quality and safety.
Customer Support: Dedicated team provides technical guidance, custom sizes, and after-sales service.
Frequently Asked Questions (FAQ)
Q: What is the difference between ASTM 303 and 304 stainless steel?
A: 303 contains added sulfur for improved machinability, while 304 offers better corrosion resistance. 303 is ideal for hardware requiring extensive machining.Q: Can you supply bars with a specific diameter tolerance?
A: Yes, we can produce to h9, h11, or custom tolerances as per your drawing or standard.Q: What surface finishes are available?
A: Standard options include bright (cold drawn), polished (mirror or matte), and pickled (dull) finish. Custom finishes are available upon request.Q: How do you ensure the corrosion resistance of the bar?
A: We perform intergranular corrosion testing (ASTM A262 Practice E) and use certified raw materials with high chromium and nickel content.Q: What is the typical lead time for an order?
A: Lead time depends on quantity and specification. For standard sizes, it is usually 15–20 days after order confirmation. Custom orders may take 25–30 days.Q: Do you provide a test certificate or mill certificate?
A: Yes, we provide a Mill Test Certificate (MTC) per EN 10204 3.1 or 3.2 upon request, including chemical composition and mechanical properties.Q: What packaging options do you offer for export?
A: Bars are bundled with protective wrapping, steel straps, and wooden pallets or crates. For sea freight, we use waterproof paper and anti-rust coating.Q: Can I get a sample before placing a bulk order?
A: Of course. We offer samples at a nominal cost, and the fee is refundable for the first bulk order. Contact us for details.
Partner with a reliable manufacturer – Wuxi Yansheng Technology Co., Ltd. With over 15 certifications, 7 years of expertise, and a global customer base, we deliver high-quality stainless steel round bars that meet your most demanding needs. Contact us today for a quote or technical consultation.
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