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.
Objet | Détails |
Nom du produit | Tube en acier inoxydable, tube en acier inoxydable, tube en acier inoxydable |
Standard | GB, AISI, ASTM, ASME, DIN, EN, JIS |
Niveaux disponibles | Série 200 : 201, 202300 Série : TP304, 304L, 304H, 316, 316L, 316H, 316Ti, 317, 317L, 310S, 310H, 321, 321H, 347, 347HS Alliages spéciaux : 904L, S31254 (254SMO)Série 400 : 409, 410S, 416, 420, 430, 439, 440, 444, 446Duplex et autres : 2205, 2507, S31803, S32205, S32750, S32760, 253MA |
Processus | Laminés à chaud, laminés à froid |
Tailles | Épaisseur : 0,24-3mm, Diamètre extérieur : 8-219mm, Longueur : 1-6m (selon la demande du client) |
Traitement de surface | NO.1, 2B, NO.4, BA, HL, Miroir |
L'inspection | SGS, TUV, BV, ABS, LR, etc. |
Application | Pétrole et gaz, pétrole, navires, construction navale, traitement de l'eau et protection de l'environnement, etc. |
Finition | Description | Épaisseur typique (mm) | Largeurs disponibles (mm) |
2B | Lisse, reflet gris. Les plus utilisés. | 0.55 | 914, 1219 |
BA | Finition miroir recuit brillant. | 0.70 | 914, 1219 |
DP | Brossé, non réfléchissant, facile à nettoyer. | 0.90 | 750, 914, 1219 |
RH | Finition écaillée, laminée à chaud. | 1.20 | 750-1500 |
N°1 | Surface décapée et blanche après le laminage à chaud. | 1.50 | 914, 1219, 1500 |
HL | Finition polie linéaire continue. | 1.60 | 914, 1219, 1500 |
N° 4 | Polissage avec un grain de 150-180. | 2.00 | 914, 1219, 1500 |
No.8 | Finition miroir, très réfléchissante. | 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.