2507 Super Duplex Stainless Steel Pipe is a high-performance duplex alloy pipe designed for critical applications that demand superior strength and extreme corrosion resistance. With a balanced microstructure of austenite and ferrite, 2507 offers exceptional resistance against pitting, crevice corrosion, and chloride stress corrosion cracking.
Produced in compliance with ASTM A790 / ASME SA790 / EN 10216-5, our 2507 Super Duplex Stainless Steel Tube delivers outstanding reliability with full mill test certificates, EN 10204 3.1/3.2 certification, and optional third-party inspection (SGS, BV, TÜV). Featuring high mechanical strength, low thermal expansion, and long-lasting performance in aggressive environments, it is one of the most trusted solutions for offshore, petrochemical, and marine industries.
Key Features & Advantages
Unmatched Corrosion Resistance: Performs significantly better than 904L and 316L in chloride-rich conditions.
High Strength: Nearly double the yield strength of standard stainless steels.
Cost Efficiency: Reduces wall thickness while maintaining performance, lowering overall project costs.
Excellent Weldability: Maintains toughness and mechanical properties even after welding.
Global Standards Compliance: Manufactured strictly according to ASTM, ASME, EN, and ISO requirements.
Applications
The 2507 Super Duplex Stainless Steel Pipe is engineered for industries where reliability and durability are essential:
Offshore oil & gas platforms, subsea pipelines, and risers
Chemical and petrochemical processing plants
Desalination systems and water treatment facilities
Heat exchangers, condensers, and pressure vessels
Marine and shipbuilding structures
Pulp and paper processing systems
Product Specifications & Technical Data
|
Parameter |
Specification |
|
Material Grade |
2507 Super Duplex Stainless Steel |
|
Standards |
ASTM A790 / ASME SA790 / EN 10216-5 |
|
Outside Diameter (OD) |
6mm – 1219mm (customized available) |
|
Wall Thickness |
0.5mm – 60mm |
|
Length |
1m – 12m or as per requirement |
|
Yield Strength (Rp0.2) |
≥ 550 MPa |
|
Tensile Strength (Rm) |
800 – 1000 MPa |
|
Elongation |
≥ 25% |
|
Hardness |
≤ 310 HB |
|
Surface Finish |
Pickled, Polished, Annealed, Bright Annealed, Customized |
|
Certification |
EN 10204 3.1 / 3.2, ISO 9001, SGS, BV, TÜV, Lloyd's Register |
Chemical Composition (% by weight)
|
Element |
Content (%) |
|
Chromium (Cr) |
24.0 – 26.0 |
|
Nickel (Ni) |
6.0 – 8.0 |
|
Molybdenum (Mo) |
3.0 – 5.0 |
|
Nitrogen (N) |
0.24 – 0.32 |
|
Manganese (Mn) |
≤ 1.20 |
|
Silicon (Si) |
≤ 0.80 |
|
Carbon (C) |
≤ 0.030 |
|
Phosphorus (P) |
≤ 0.035 |
|
Sulfur (S) |
≤ 0.020 |
|
Iron (Fe) |
Balance |
Customization Services
At Jiangsu Cunrui Metal Products Co., Ltd., we offer tailor-made 2507 Super Duplex Stainless Steel Tube solutions:
Special diameters, wall thicknesses, and non-standard dimensions
Precision machining: cutting, bending, drilling, threading, welding
Various surface treatments (pickling, polishing, passivation, coating)
OEM/ODM support based on drawings and technical specifications
Flexible MOQ and sample orders to support customer projects
Price & Delivery
Competitive Prices: Cost-effective with attractive bulk discounts.
Flexible MOQ: Trial orders and small batches are accepted.
Lead Time: Stock sizes available; customized production delivered in 15–30 days.
Export Packaging: Seaworthy packing with customized marking for safe global shipping.
Our Strength
Modern factory equipped with advanced hot-rolling, cold-drawing, and finishing lines.
Annual output exceeding 50,000 tons with strong supply capability.
Exported to more than 60 countries across Europe, America, Middle East, and Asia.
Certified with ISO 9001 / ISO 14001 / OHSAS 18001.
Experienced R&D and quality control team ensuring continuous product improvement.
Service & Support
Fast inquiry response within 12 hours.
Technical consultation for material selection and project design.
Complete quality documentation and optional third-party testing.
Replacement or refund in case of verified quality issues.
Global shipping with export-standard packaging and logistics support.
FAQ
Q1: What makes 2507 Super Duplex Stainless Steel Pipe different from 2205 duplex steel?
A1: 2507 offers higher chromium, molybdenum, and nitrogen content, giving it superior corrosion resistance and higher mechanical strength than 2205.
Q2: Can you provide customized dimensions and machining?
A2: Yes, we support custom wall thicknesses, lengths, and machining such as cutting, threading, welding, or surface treatment.
Q3: Do you offer third-party inspections?
A3: Yes, SGS, BV, TÜV, or customer-specified inspections are available before shipment.
Q4: What is your delivery lead time?
A4: Standard stock sizes can be shipped immediately, while custom production typically takes 15–30 days.
Q5: Do you have a flexible minimum order quantity (MOQ)?
A5: Yes, we accept small trial orders to support customer testing and urgent needs.
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