We are a leading 321 stainless steel bar manufacturer in China, offering precision-cut round bars with high temperature resistance. OEM & ODM service available for industrial applications.
As a leading stainless steel bar factory in China, we provide OEM & ODM services tailored to your needs. Our 321 stainless steel bars are manufactured with high precision using advanced CNC equipment. From standard diameters to custom-cut lengths and polished surfaces, we deliver exacting specifications to meet your application requirements. With over 20 production lines and a 6000+ ton annual output, Jiuguang Metal ensures stable supply and consistent quality across global markets.
| Item | Details |
| 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. |
| Application | 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 |
321 stainless steel bars are primarily available as round bars, suitable for machining, structural support, and high-temperature industrial applications. Customization options include hot-rolled or cold-drawn processes, centerless grinding for tight tolerances, and surface treatments like 2B, bright, or matte polish. While round bars are standard, limited customization is available for square and hexagonal profiles upon request.
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We are a leading 321 stainless steel bar manufacturer in China, offering precision-cut round bars with high temperature resistance. OEM & ODM service available for industrial applications.
Yes. The titanium content in 321 provides superior resistance to intergranular corrosion, especially in high-temperature applications compared to 304.
Absolutely. We provide full customization based on your drawings or technical requirements.
Yes, we provide Mill Test Certificates (MTC) along with packing lists and invoices for each order.
Yes, we welcome small-batch and trial orders to support product evaluation.
Our bars can be finished in 2B, BA, matte, or polished surfaces depending on your needs.
Yes. Our stainless steel bars are exported to over 10 countries including Germany, Japan, the USA, and Singapore.
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