We are a top manufacturer of 309 stainless steel bars, offering excellent heat resistance, high strength, and corrosion protection. Custom sizes and finishes available with global delivery.
309 stainless steel bar is a high-performance alloy designed for elevated temperature applications, offering significantly higher corrosion resistance and strength compared to 304. Its high chromium and nickel content makes it particularly suitable for heat exchangers, furnace components, power plantsі boiler parts.
As a trusted manufacturer and exporter, we supply high-purity 309 stainless steel round bars with consistent mechanical properties, precise tolerances, and a choice of surface finishes. Our factory supports OEM production, international shipping, and full certifications to meet global standards.
| Item | Деталі |
| Product Name | Stainless Steel Bar, Stainless Bar, SS Bar |
| Standard | GB, AISI, ASTM,ASME,DIN, EN, JIS |
| Available Grades | 200 Series: 201, 202300 Series: TP304, 304L, 304H, 316, 316L, 316H, 316Ti, 317, 317L, 310S, 310H, 321, 321H, 347, 347HSpecial Alloys: 904L, S31254 (254SMO)400 Series: 409, 410S, 416, 420, 430, 439, 440, 444, 446Duplex and Others: 2205, 2507, S31803, S32205, S32750, S32760, 253MA |
| Process | Hot Rolled, Cold Rolled |
| Sizes | Diameter: 0.1-500mm or customized, Length: 1-12m or customized (according to customer’s request) |
| Обробка поверхні | NO.1, 2B, NO.4, BA, HL, Mirror |
| Inspection | SGS, TUV, BV, ABS, LR etc. |
| Заявка | Oil & Gas, Petroleum, Vessels, Ship Building, Water Treatment and Environmental Protection etc. |
| Finish | Description | Typical Thickness (mm) | Available Widths (mm) |
| 2B | Smooth, reflective grey sheen. Most widely used. | 0.55 | 914, 1219 |
| BA | Bright annealed mirror-like finish. | 0.70 | 914, 1219 |
| DP | Brushed, non-reflective, easy to clean. | 0.90 | 750, 914, 1219 |
| HR | Scaled, hot-rolled finish. | 1.20 | 750–1500 |
| No.1 | Pickled, white surface after hot-rolling. | 1.50 | 914, 1219, 1500 |
| HL | Continuous linear polish finish. | 1.60 | 914, 1219, 1500 |
| No.4 | Polished with 150–180 grit. | 2.00 | 914, 1219, 1500 |
| No.8 | Mirror finish, highly reflective. | 2.50 | 914, 1219, 1500 |
Our 309 stainless steel bars are primarily supplied as round bars, which are the standard form for high-temperature and pressure-resistant applications. These bars are offered in hot rolled or cold drawn condition with customizable diameters and lengths. Surface finish options include bright, pickled, or black, depending on end-use requirements. For specialized orders, we also offer limited quantities of hex or square bar styles on request.
Qingdao Jiuguang is a certified manufacturer of 2507 stainless steel bars in China. We offer custom-sized super duplex round bars with excellent corrosion resistance and global certifications.
Discover high-strength 2205 stainless steel bars with superior corrosion resistance. As a leading manufacturer and supplier in China, we offer round bars and custom sizes for industrial, marine, and chemical applications.
Reliable manufacturer of 904L stainless steel bars for industrial use. Excellent corrosion resistance for acid and marine environments. Custom sizes and finishes available. Global delivery.
Explore high-quality 202 stainless steel bars with excellent heat resistance and formability. Ideal for architecture, public infrastructure, and decorative applications. OEM & custom sizes available.
309 bars are widely used in high-temperature structural components, including furnace linings, heat treatment baskets, kilns, and power generation systems.
Yes. 309 stainless steel has a higher chromium and nickel content, offering superior resistance to oxidation and corrosion, especially at elevated temperatures.
Yes, we support custom sizes, cut-to-length service, and a wide range of finishes tailored to your project needs.
Absolutely. We provide Mill Test Certificates (EN 10204 3.1) and third-party inspections such as SGS, BV, or TÜV upon request.
We accommodate both trial orders and bulk purchases, with flexible MOQs depending on product specifications.
Ukrainian 
English 
German 
French 
Italian 
Spanish 
Portuguese (Portugal) 
Arabic 
Russian 
Bosnian 
Persian 
Hebrew 
Malay 
Turkish 
Portuguese (Brazil)