Super Duplex 1.4410 Plate Price Per kg
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If you are searching for super duplex 1.4410 stainless steel plates, GNEE can provide ready-to-ship inventory in multiple thicknesses and dimensions, manufactured to ASTM A240 / UNS S31803 / EN 10088 standards, with full ISO 9001, SGS, and BV certifications. Our plates are available in hot-rolled, annealed, and polished finishes, ensuring high corrosion resistance, superior strength, and consistent quality for chemical, offshore, and industrial applications.
What is 1.4410 Super Duplex Stainless Steel Plate?
1.4410 super duplex stainless steel plate is a high-performance alloy steel with a dual-phase microstructure composed of approximately 50% austenite and 50% ferrite. Its Pitting Resistance Equivalent Number (PREN) typically exceeds 40. Due to its duplex structure, 1.4410 exhibits significantly higher mechanical strength than conventional austenitic stainless steels such as 316L. Thinner plates can be used in load-bearing applications, reducing overall weight and cost. It is suitable for a temperature range from –50°C to 250°C, although prolonged exposure at higher temperatures may lead to the formation of harmful intermetallic phases.
Super Duplex 1.4410 Plate Specification
| Item | Specification / Range |
|---|---|
| Grade | 1.4410 / UNS S31803 / Super Duplex |
| Standard | ASTM A240 / ASME SA240 / EN 10088-2 |
| Thickness | 3 mm – 60 mm |
| Width | Up to 2500 mm (custom width available) |
| Length | 2000 mm, 2440 mm, 3000 mm, 6000 mm or custom |
| Surface Finish | Hot rolled, NO.1, 2B, BA, Polished, Brushed |
| Chemical Composition (%) | C ≤0.03, Mn ≤2.0, P ≤0.045, S ≤0.015, Si 0.5–1.0, Cr 21–23, Ni 4.5–7, Mo 2.5–3.5, N 0.08–0.20 |
| Mechanical Properties | Tensile Strength 620–750 MPa, Yield Strength ≥450 MPa, Elongation ≥25%, Hardness ≤280 HB |
| Certificates | ISO 9001, EN 10204 3.1 / 3.2, NACE MR0175, DNV / ABS / LR for marine applications |
| Processing Services | Laser / Plasma / Waterjet cutting, Custom sizes, Polishing, Bending, Machining |
| Applications | Offshore & marine structures, Chemical processing, Desalination plants, Heat exchangers, Oil & gas pipelines |
What is the price per kg for 1.4410 plates?
Typically ranges from USD $8.50 to $12.50 per kg, depending on thickness, quantity, surface finish, and certification.
How does 1.4410 compare to 316L or 904L?
Compared to 316L stainless steel, the super duplex stainless steel 1.4410 boasts almost 2-2.5 times higher tensile strength (620-750 MPa vs. 485-620 MPa) and significantly better pitting resistance (PREN ≥ 40 vs. 24-26), making it ideal for high-chlorination and high-pressure environments. Compared to 904L, 1.4410 offers comparable corrosion resistance in seawater and chemical applications at a lower cost and with higher mechanical strength, allowing for thinner applications and extended service life in marine, chemical, and desalination projects.
Payment Terms and Shipping Information for Super Duplex 1.4410 Stainless Steel Sheets
Payment Terms:
* Telegraphic Transfer (T/T): 30% prepayment, 70% balance due before shipment.
* Letter of Credit (L/C): Irrevocable L/C at sight can be arranged for bulk orders.
Shipping and Delivery:
* Delivery Time: 1.4410 steel sheets in stock are typically shipped within 7-15 days, depending on quantity and processing requirements.
* Packaging: Export-grade sea freight packaging using moisture-proof film, wooden crates, or pallets to prevent damage during transport.
* Customs and Documentation: We will provide factory test certificates (EN 10204 3.1/3.2), quality certificates (ISO 9001), and any other documents required by the destination country.
Logistics Support: GNEE will assist you with transport documents, port clearance, and freight booking to ensure smooth delivery.
FAQ
Q: Can GNEE supply custom sizes or processed plates?
Yes, we provide laser, plasma, waterjet cutting, polishing, and bending services according to your drawings.
Q: Are certificates available for international projects?
Yes, including ISO 9001, EN 10204 3.1/3.2, NACE MR0175, and marine certifications (DNV, ABS, LR).
Q: Which industries commonly use 1.4410 plates?
Offshore oil & gas, chemical plants, desalination, marine, and heat exchangers.
