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.
Item | Detalhes |
Nome do produto | Stainless Steel Pipe, Stainless Pipe, SS Pipe |
Padrão | GB, AISI, ASTM,ASME,DIN, EN, JIS |
Graus disponíveis | Série 200: 201, 202300: TP304, 304L, 304H, 316, 316L, 316H, 316Ti, 317, 317L, 310S, 310H, 321, 321H, 347, 347HSligas especiais: 904L, S31254 (254SMO)Série 400: 409, 410S, 416, 420, 430, 439, 440, 444, 446Duplex e outros: 2205, 2507, S31803, S32205, S32750, S32760, 253MA |
Processo | Laminados a quente, laminados a frio |
Tamanhos | Thickness: 0.24–3mm, Outer diameter: 8–219mm, Length: 1–6m (according to customer’s request) |
Tratamento de superfície | NO.1, 2B, NO.4, BA, HL, Espelho |
Inspeção | SGS, TUV, BV, ABS, LR, etc. |
Aplicação | Petróleo e gás, petróleo, navios, construção naval, tratamento de águas e proteção ambiental, etc. |
Acabamento | Descrição | Espessura típica (mm) | Larguras disponíveis (mm) |
2B | Brilho cinzento liso e refletor. Mais utilizado. | 0.55 | 914, 1219 |
BA | Acabamento espelhado recozido e brilhante. | 0.70 | 914, 1219 |
DP | Escovado, não refletor, fácil de limpar. | 0.90 | 750, 914, 1219 |
RH | Acabamento escalonado e laminado a quente. | 1.20 | 750-1500 |
N.º 1 | Superfície branca e decapada após laminagem a quente. | 1.50 | 914, 1219, 1500 |
HL | Acabamento de polimento linear contínuo. | 1.60 | 914, 1219, 1500 |
N.º 4 | Polido com grão 150-180. | 2.00 | 914, 1219, 1500 |
N.º 8 | Acabamento espelhado, altamente refletor. | 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.