Top manufacturer and supplier of 309 stainless steel tubes in China. Offering high-quality standard stainless steel tube solutions with superior heat resistance and strength.
309 stainless steel tube is an austenitic stainless steel known for its exceptional resistance to high temperatures and oxidation. With higher levels of chromium and nickel compared to 304, this alloy provides enhanced strength and durability in demanding environments, such as heat treatment equipment, furnaces, kilns, and exhaust systems.
As a trusted supplier of high-quality standard stainless steel tubes, we offer 309 tubes in a wide range of outer diameters, wall thicknesses, and surface finishes. Our production processes follow global standards such as ASTM, EN, and JIS, and we support both seamless and welded options. OEM and ODM customizations are available for industrial applications requiring thermal stability and corrosion resistance.
Articolo | Dettagli |
Nome del prodotto | Tubo in acciaio inox, tubo in acciaio inox, tubo SS |
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 | Spessore: 0,24-3mm, diametro esterno: 8-219mm, lunghezza: 1-6m (secondo la richiesta del cliente) |
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 |
309 stainless steel tubes are available in round, square, and rectangular configurations. Customers can choose from surface finishes including 2B, No.4, BA, and mirror polish depending on the intended use. Both hot rolled and cold drawn processing methods are available, offering tight tolerance control and smooth internal surfaces suitable for mechanical, thermal, and structural use cases.