Looking for large-diameter stainless steel square tube? We are a professional stainless steel tube manufacturer in China offering OEM/ODM square tubing solutions with durable quality, precise dimensions, and competitive factory pricing. Customize size, grade, and surface finish today.
Our large-diameter stainless steel square tubes are designed to meet the demands of heavy-duty structural applications. Produced with precision engineering and using high-quality stainless steel grades like 304, 316, and 430, these tubes offer exceptional strength, uniform shape, and resistance to corrosion. We provide OEM and ODM services to tailor size, wall thickness, surface finish, and alloy composition according to your project needs.
| Item | Details |
| Product Name | Stainless Steel Pipe, Stainless Pipe, SS Pipe |
| Standard | GB, AISI, ASTM,ASME,DIN, EN, JIS |
| Available Grades | 200 Series: 201, 202300 Series: TP304, 304L, 304H, 316, 316L, 316H, 316Ti, 317, 317L, 310S, 310H, 321, 321H, 347, 347HSpecial Alloys: 904L, S31254 (254SMO)400 Series: 409, 410S, 416, 420, 430, 439, 440, 444, 446Duplex and Others: 2205, 2507, S31803, S32205, S32750, S32760, 253MA |
| Process | Hot Rolled, Cold Rolled |
| Sizes | Thickness: 0.24–3mm, Outer diameter: 8–219mm, Length: 1–6m (according to customer’s request) |
| Surface Treatment | NO.1, 2B, NO.4, BA, HL, Mirror |
| Inspection | SGS, TUV, BV, ABS, LR etc. |
| Application | Oil & Gas, Petroleum, Vessels, Ship Building, Water Treatment and Environmental Protection etc. |
| Finish | Description | Typical Thickness (mm) | Available Widths (mm) |
| 2B | Smooth, reflective grey sheen. Most widely used. | 0.55 | 914, 1219 |
| BA | Bright annealed mirror-like finish. | 0.70 | 914, 1219 |
| DP | Brushed, non-reflective, easy to clean. | 0.90 | 750, 914, 1219 |
| HR | Scaled, hot-rolled finish. | 1.20 | 750–1500 |
| No.1 | Pickled, white surface after hot-rolling. | 1.50 | 914, 1219, 1500 |
| HL | Continuous linear polish finish. | 1.60 | 914, 1219, 1500 |
| No.4 | Polished with 150–180 grit. | 2.00 | 914, 1219, 1500 |
| No.8 | Mirror finish, highly reflective. | 2.50 | 914, 1219, 1500 |
We offer a wide range of custom styles for large-diameter stainless steel square tubes. Common shapes include square, rectangular, and round tubes, with options for seamless or welded construction. Customers can also request brushed, mirror-polished, or pickled finishes, along with customized dimensions and thicknesses. We support production of non-standard profiles such as oval, hexagonal, or decorative tubing upon request.
Looking for high-quality round seamless tubes? We are a trusted manufacturer and exporter of stainless steel round seamless tubes in China. Our products offer superior strength, corrosion resistance, and precision dimensions. OEM and custom services available.
We supply high-quality large-diameter stainless steel round tubes for industrial use. OEM/ODM customization, seamless or welded, available in 304, 316L, 310S, and other grades. Trusted manufacturer with global delivery.
We manufacture and export square seamless tubes made from stainless steel and alloy grades. Precision-cut, corrosion-resistant, and customizable—ideal for structural, architectural, and industrial use.
Leading supplier of oval and elliptical seamless tubes in stainless steel and alloy materials. Ideal for architecture, automotive, and furniture industries. Custom sizes and finishes available.
We can produce up to 800mm in width and wall thicknesses ranging from 1mm to 12mm depending on material and shape.
Yes, we provide full customization, including precise length cutting, tight tolerance control, and bespoke surface treatments.
Yes, depending on your application and budget, we offer both seamless and welded large-diameter square tubes.
We commonly offer 201, 304, 316, 430, and duplex stainless steel grades, with other alloys available upon request.
Our stainless steel tubes are ISO9001 certified and can be supplied with EN10204 3.1 mill test certificates, SGS inspection, and customized conformity reports.
English 
German 
French 
Italian 
Spanish 
Portuguese 
Arabic 
Russian