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 scambiatori di calore, furnace components, power plants, e 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.
| Articolo | Dettagli |
| Nome del prodotto | Stainless Steel Bar, Stainless Bar, SS Bar |
| Standard | GB, AISI, ASTM, ASME, DIN, EN, JIS |
| Gradi disponibili | Serie 200: 201, 202300: TP304, 304L, 304H, 316, 316L, 316H, 316Ti, 317, 317L, 310S, 310H, 321, 321H, 347, 347HSerie speciali: 904L, S31254 (254SMO)Serie 400: 409, 410S, 416, 420, 430, 439, 440, 444, 446Duplex e altre: 2205, 2507, S31803, S32205, S32750, S32760, 253MA |
| Processo | Laminati a caldo, laminati a freddo |
| Dimensioni | Diameter: 0.1-500mm or customized, Length: 1-12m or customized (according to customer’s request) |
| Trattamento della superficie | NO.1, 2B, NO.4, BA, HL, Specchio |
| Ispezione | SGS, TUV, BV, ABS, LR ecc. |
| Applicazione | Petrolio e gas, petrolio, navi, costruzione di navi, trattamento delle acque e protezione ambientale, ecc. |
| Finitura | Descrizione | Spessore tipico (mm) | Larghezze disponibili (mm) |
| 2B | Liscio, di colore grigio riflettente. Più utilizzato. | 0.55 | 914, 1219 |
| BA | Finitura lucida a specchio ricotto. | 0.70 | 914, 1219 |
| DP | Spazzolato, non riflettente, facile da pulire. | 0.90 | 750, 914, 1219 |
| HR | Finitura scalare e laminata a caldo. | 1.20 | 750-1500 |
| No.1 | Superficie decapata e bianca dopo la laminazione a caldo. | 1.50 | 914, 1219, 1500 |
| HL | Finitura lineare continua. | 1.60 | 914, 1219, 1500 |
| No.4 | Lucidato con grana 150-180. | 2.00 | 914, 1219, 1500 |
| No.8 | Finitura a specchio, altamente riflettente. | 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.
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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, o TÜV upon request.
We accommodate both trial orders and bulk purchases, with flexible MOQs depending on product specifications.
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