Duplex stainless steel pipes are known for their excellent combination of strength and corrosion resistance, thanks to their dual-phase microstructure containing both austenite and ferrite. They are widely used in chemical processing, oil & gas, desalination, and marine applications. Choosing a reliable duplex pipe manufacturer ensures product quality, compliance with international standards, and long service life in demanding environments.
Top Global Duplex Pipe Manufacturers
The following table lists leading duplex stainless steel pipe manufacturers worldwide:
| Manufacturer | Country | Main Duplex Grades | Certifications |
|---|---|---|---|
| Sandvik Materials Technology | Sweden | 2205, 2507 | ASTM, EN, ISO |
| Outokumpu | Finland | 2205, 2304, 2507 | ASTM, ASME, ISO |
| Jindal Stainless | India | 2205, 2507 | ASTM, ASME, ISO |
| Butting Group | Germany | 2205, 2507 | ASTM, EN, PED |
| Baosteel | China | 2205, 2304 | GB/T, ASTM, ISO |
Duplex Pipe Price Range (2025)
Market prices vary based on size, grade, and surface finish. Below is an estimated price range:
| Pipe Size | Grade | Price per Kg (USD) | Standards |
|---|---|---|---|
| 1″ – 4″ | 2205 | $6.50 – $10.00 | ASTM A790 / A928 |
| 1″ – 4″ | 2507 | $9.00 – $14.50 | ASTM A790 / A928 |
| 6″ – 12″ | 2205 | $7.00 – $10.80 | ASTM A790 / A928 |
| 6″ – 12″ | 2507 | $9.50 – $15.20 | ASTM A790 / A928 |
Specifications Offered by Manufacturers
Most duplex pipe manufacturers produce according to the following specifications:
- Grades: UNS S31803 (2205), UNS S32205, UNS S32750 (2507), UNS S32304
- Outer Diameter: 6 mm – 610 mm
- Wall Thickness: 0.5 mm – 50 mm
- Length: 6 m – 12 m, or custom
- Standards: ASTM A790, ASTM A928, EN 10216
- Surface Finish: Pickled, Polished, Annealed
Applications of Duplex Pipes
Due to their superior corrosion resistance and mechanical properties, duplex stainless steel pipes are used in:
- Oil & gas pipelines
- Seawater desalination plants
- Chemical processing plants
- Heat exchangers
- Marine and shipbuilding industries
Buying Guide for Duplex Pipes
When selecting a duplex pipe manufacturer, consider the following factors:
- Material Certification: Ensure compliance with ASTM/ASME or EN standards
- Testing: Hydrostatic, PMI (Positive Material Identification), and NDT (Non-Destructive Testing)
- Lead Time: Check production and delivery schedules
- Packing: Export-standard bundles or wooden boxes
Frequently Asked Questions
What is the price of duplex stainless steel pipes?
Prices generally range from $6.50/kg to $15.20/kg depending on grade, size, and supplier location.
Which are the top duplex pipe manufacturers?
Notable manufacturers include Sandvik Materials Technology, Outokumpu, Jindal Stainless, Butting Group, and Baosteel.
What are duplex pipes used for?
They are used in high-stress, corrosive environments such as oil & gas, desalination plants, and marine industries.
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