High-performance 2507 super duplex stainless steel tube with excellent corrosion resistance, high strength, and low thermal expansion. Ideal for seawater and chemical processing. OEM customization available from certified Chinese factory.
At Jiuguang Metal, we specialize in manufacturing high-performance 2507 stainless steel tubes, also known as UNS S32750 super duplex stainless steel. With 25% chromium, 4% molybdenum, and 7% nickel, this alloy delivers exceptional resistance to pitting, crevice corrosion, and chloride stress corrosion cracking, even in aggressive environments.
With its high tensile strength, excellent thermal conductivity, and low thermal expansion, 2507 is widely used in chemical processing plants, petrochemical systems, offshore platforms, and seawater desalination facilities. Our tubes are manufactured to precise tolerances and comply with global standards including ASTM, AISI, EN, DIN, and JIS, with full OEM customization supported.
| 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 |
2507 stainless steel tubes are available in round, square, and rectangular configurations. Options include seamless and welded tubes, produced via cold drawn or hot rolled processes. Surface finishes such as 2B, BA, No.1, HL, and Mirror are available based on application needs. Diameters range from 8mm to 219mm, with custom lengths up to 6 meters. Tight dimensional tolerances and corrosion-resistant finishes make them suitable for demanding pressure and flow systems.
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2507 contains a higher level of chromium, molybdenum, and nitrogen than standard duplex grades, offering superior corrosion resistance and mechanical strength in harsh environments.
It’s used in seawater equipment, heat exchangers, pressure vessels, desalination plants, and chemical/petrochemical industries due to its extreme corrosion resistance and durability.
Yes. We offer complete OEM customization, including non-standard wall thicknesses, shapes, and pre-cut lengths based on your project drawings.
Yes. We manufacture both types to suit different pressure and cost requirements.
Each order is delivered with Mill Test Certificates (EN10204 3.1/3.2). We also support SGS, TUV, BV, ABS, and LR third-party inspections upon request.
While 2507 performs excellently in corrosive environments, it’s generally recommended for use in temperatures below 600°F (316°C) to avoid embrittlement.
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