Stainless Steel Welded Pipe 304 ASTM A554 Grade 304 2 Inch Square Rectangular Tube
Product Spotlights
Welcome to Hemaokang Steel (Shandong) Co., Ltd. As a professional manufacturer of stainless steel products, we are proud to introduce our Stainless Steel Welded Pipe 304 ASTM A554 Grade 304 2 Inch Square Rectangular Tube. This product is manufactured with strict adherence to international standards, ensuring high strength, excellent corrosion resistance, and precise dimensions. Our factory, located in Liaocheng, Shandong, China, has been serving global clients since 2025, with an annual export value ranging from US$50 Million to US$100 Million. We are committed to delivering superior quality and reliability, backed by our ISO9001 certification. Whether for architectural frameworks, industrial structures, or decorative applications, this welded tube offers a cost-effective and durable solution.
Our product line features 304 stainless steel, known for its excellent weldability and formability. The tubes are produced using advanced high-frequency welding (TIG/GTAW) technology, ensuring a smooth and consistent weld seam. Each tube undergoes rigorous quality control, including dimensional inspection, surface finish check, and mechanical property testing. The 2-inch square or rectangular shape provides versatility for various structural and aesthetic needs.
Key Specifications
| Parameter | Value |
| Material Grade | 304 (UNS S30400) |
| Standard | ASTM A554 |
| Shape | Square / Rectangular |
| Nominal Size | 2 Inch (50.8 mm) |
| Wall Thickness | 1.0 mm – 3.0 mm (Customizable) |
| Length | 6 m (or Custom Length) |
| Surface Finish | Bright, Pickled, Polished |
| Welding Process | TIG / GTAW |
| Tolerance | ±0.5% on dimensions |
Product Features and Advantages
- Excellent Corrosion Resistance: Grade 304 stainless steel offers outstanding resistance to oxidation and many corrosive environments, making it suitable for outdoor and food-grade applications.
- High Welding Quality: Our automated TIG welding ensures a uniform bead, free from defects, providing strong and leak-proof joints.
- Precise Dimensional Accuracy: All tubes are manufactured within tight tolerances (±0.5%), guaranteeing easy installation and compatibility with other components.
- Versatile Surface Finishes: We offer bright annealed, pickled, or polished finishes to meet different aesthetic and functional requirements.
- Customizable Length and Thickness: We can produce tubes in lengths from 1 m to 12 m, and wall thicknesses up to 3 mm or more, upon request.
- Cost-Effective Solution: Compared to seamless pipes, welded tubes offer a more economical option without compromising performance for most structural applications.
Typical Applications
- Architectural handrails, balustrades, and frames
- Furniture and display stands
- Industrial equipment and machinery frames
- Automotive and transportation structures
- Greenhouse and agricultural frameworks
- Decorative interior and exterior trim
Our Stainless Steel Welded Pipe 304 ASTM A554 is widely used in North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, and domestic markets. With a dedicated team of 51-100 employees and strong export capabilities, we ensure timely delivery and competitive pricing. All products are packed and shipped from Qingdao Port, with professional handling to prevent damage during transit.
Why Choose Hemaokang Steel?
- ISO9001 Certified Quality Management System – Our processes are audited regularly to maintain consistent quality.
- Annual Export Value US$50M - US$100M – A testament to our reliability and global reach.
- Experienced Workforce – Skilled engineers and workers ensure every product meets your specifications.
- Customer-Centric Service – We offer samples, technical support, and flexible order quantities.
Frequently Asked Questions (FAQ)
- Q: What is the chemical composition of your 304 stainless steel tube? A: It typically contains 18-20% chromium and 8-10.5% nickel, meeting ASTM A240 requirements. Detailed mill certificates are available upon request.
- Q: Can you supply tubes with different wall thicknesses? A: Yes, we offer a range from 1.0 mm to 3.0 mm as standard, and other thicknesses are available for custom orders.
- Q: What is the maximum length you can produce? A: Our standard length is 6 meters, but we can produce up to 12 meters depending on the profile and shipping constraints.
- Q: Do you offer any surface treatment, such as polishing or coating? A: Yes, we provide bright, pickled, or polished finishes. Additional coating options (e.g., electro-polishing) are available on request.
- Q: How do you ensure the welding seam quality? A: We use advanced TIG welding with automated control, followed by visual inspection and non-destructive testing (e.g., eddy current) for critical orders.
- Q: What are your typical lead times for an order? A: For standard sizes, lead time is 15-25 days after deposit. Custom sizes may require 25-35 days.
- Q: Do you provide samples before bulk order? A: Yes, samples are available. The sample cost can be deducted from the final invoice for formal orders.
- Q: Which ports do you ship from? A: All orders are shipped from Qingdao Port, China, with flexible shipping options (FOB, CIF, etc.).
At Hemaokang Steel (Shandong) Co., Ltd., we are dedicated to delivering top-quality stainless steel products that meet your exact requirements. Our proven track record with over US$50 million in annual exports and global customer satisfaction speaks for itself. Contact us today to discuss your project needs or request a quotation. We look forward to building a lasting partnership with you.
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