Tubos rectangulares sem costura de alta resistência fabricados em aço inoxidável e ligas. Dimensões de precisão, resistentes à corrosão e ideais para aplicações estruturais, mecânicas e arquitectónicas.
As one of the top rectangular seamless tube manufacturers in China, we provide premium-grade seamless tubing solutions designed for structural integrity, corrosion resistance, and high mechanical performance. These tubes are widely used in engineering frameworks, architectural supports, vehicle manufacturing, and heavy-duty machinery.
Our rectangular seamless tubes are produced using hot-rolled or cold-drawn processes to ensure uniform wall thickness, tight tolerances, and smooth surfaces. We offer custom fabrication options including exact size, wall thickness, and surface finish according to your application.
All products comply with international standards such as ASTM, EN, and ISO, and are available in materials like 304/316 stainless steel, duplex 2205, and high-nickel alloys for specialized environments.
| 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 |
Our rectangular seamless tubes are precision-engineered with flat surfaces and 90° corners, offering consistent strength and clean aesthetics. Available sizes range from small-section tubing to large structural rectangular pipes. Surface finishes include satin brushed, pickled, mirror polished, or mill finish. Tubes can be supplied with plain ends, beveled ends, or custom cuts for direct fabrication use.
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Professional supplier of 316L stainless steel tubes in China. We provide corrosion-resistant, molybdenum-bearing stainless steel tubing with custom sizes and superior performance.
These tubes are ideal for use in structural components, support frameworks, load-bearing assemblies, automotive parts, furniture frames, and decorative installations.
Common grades include 304, 316, 321 stainless steel, duplex 2205, and 904L for corrosive or marine applications. We also support custom alloy requests.
Yes. We can produce according to your exact specifications, including custom width, height, wall thickness, and length, to ensure a perfect fit for your project.
Absolutely. We export to over 30 countries and provide full export packaging, inspection certificates, and third-party testing reports upon request.
Seamless tubes offer superior strength, better internal cleanliness, and higher pressure tolerance, especially important in demanding structural or fluid systems.
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