Super Duplex 2507 is a high-performance stainless steel alloy with a dual-phase microstructure consisting of austenite and ferrite. It offers exceptional strength, pitting resistance, and stress corrosion cracking resistance in aggressive environments such as seawater, chemical processing, and oil & gas pipelines. Due to its high chromium (25%), molybdenum (4%), and nitrogen (0.3%) content, the price of 2507 is higher than standard duplex or austenitic grades like 304 or 316. Below is a comprehensive guide to Super Duplex 2507 pricing in 2025, based on product form and size from Chinese suppliers.
Super Duplex 2507 Price by Product Type (FOB China, 2025)
Prices vary depending on product type, size, and surface finish. Here is a breakdown by form:
| Product Type | Size Range | Price (USD/kg) | MOQ |
|---|---|---|---|
| Plate / Sheet | 3 mm – 50 mm | $9.00 – $11.50 | 500 kg |
| Seamless Pipe | OD 6 mm – 273 mm | $10.50 – $13.50 | 300 meters |
| Welded Pipe | OD 25 mm – 609 mm | $8.50 – $10.80 | 500 meters |
| Round Bar | Ø 10 mm – 150 mm | $9.80 – $12.20 | 300 kg |
| Flanges / Fittings | 1/2″ – 12″ | $11.00 – $14.00 | Depends on type |
Price Comparison: Super Duplex 2507 vs Other Grades
2507 is significantly more expensive than standard austenitic and duplex grades due to its high alloy content and superior performance.
| Grade | Approx. Price (USD/kg) | Performance Level |
|---|---|---|
| 304 | $2.50 – $3.20 | Basic corrosion resistance |
| 316L | $3.80 – $4.80 | Good for marine/chemical use |
| 2205 | $5.80 – $7.50 | Standard duplex performance |
| 2507 | $9.00 – $13.50 | High chloride resistance, offshore |
2507 Pipe Price per Meter (Sample Sizes)
Below are estimated prices per meter based on standard pipe sizes:
| Size | Wall Thickness | Type | Price (USD/meter) |
|---|---|---|---|
| 1” (33.4 mm OD) | SCH 40 | Seamless | $18.00 – $22.00 |
| 2” (60.3 mm OD) | SCH 80 | Seamless | $34.00 – $42.00 |
| 4” (114.3 mm OD) | SCH 40 | Welded | $58.00 – $70.00 |
What Affects the Price of Super Duplex 2507?
Several key factors drive price variation:
| Factor | Impact on Price |
|---|---|
| Nickel & Molybdenum Costs | High content increases base alloy cost |
| Processing Type | Seamless costs more than welded |
| Surface Finish | Polished or machined surfaces are more expensive |
| Certification | NORSOK, NACE compliance raises inspection costs |
Related Questions
What is the current price of Super Duplex 2507 per kg?
In 2025, the price of 2507 ranges from $9.00 to $13.50 per kg depending on product type and supplier.
Why is Super Duplex 2507 more expensive than 2205?
2507 has higher alloy content (more Cr, Mo, N) and superior corrosion resistance, especially in chloride-rich environments.
Where is 2507 commonly used?
It is widely used in offshore oil platforms, desalination plants, heat exchangers, and pressure vessels in aggressive environments.
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