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.
As a leading stainless steel bar manufacturer in China, we specialize in producing high-performance 2507 super duplex bars tailored to your requirements. Our factory utilizes advanced cold drawing and hot rolling techniques, ensuring precise tolerance and superior surface finishes. We support full customization including size, cut length, and special packaging. Whether you need round bars for offshore applications or corrosion-resistant components for chemical plants, we offer reliable and efficient supply backed by global certifications.
| Item | Detalhes |
| 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) |
| Surface Treatment | NO.1, 2B, NO.4, BA, HL, Mirror |
| Inspection | SGS, TUV, BV, ABS, LR etc. |
| Aplicativo | 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 2507 stainless steel bars are primarily available in round bar form, suitable for high-stress and corrosive environments. We also support custom production of square, hexagonal, or flat bars upon request. Common surface finishes include bright, matte, and peeled, and sizes can be tailored to meet specific application needs such as marine components, heat exchangers, and shafts.
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Seamless bars offer higher strength and corrosion resistance due to the absence of a weld seam, ideal for pressure and structural applications.
Yes. We support full customization including diameters, lengths, and tolerances per your technical drawings.
Yes. EN10204 3.1 or 3.2 Mill Test Certificates are available for each production batch.
Absolutely. Its super duplex structure and alloy composition provide exceptional resistance to pitting and stress corrosion.
Yes, small-batch orders are welcome for sampling and testing purposes.
Packing list, invoice, MTC, and other certificates required for customs or project use.
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