Leading S32750 / 1.4410 Super Duplex Stainless Steel Pipe Supplier in China
Engineered for the most aggressive service conditions, our S32750 / 1.4410 super duplex pipes deliver the ultimate combination of high strength and exceptional corrosion resistance. With a PREN value exceeding 40, they provide unparalleled defense against pitting and crevice corrosion in harsh chloride-rich environments like subsea oil & gas and chemical processing.
S32750 / 1.4410 Super Duplex Stainless Steel Pipe - Detailed Specifications
| Specification Parameter | Details |
|---|---|
| Product Name | S32750 / 1.4410 Super Duplex Stainless Steel Pipe |
| Governing Standard | ASTM A790 / ASME SA-790 (Seamless & Welded), ASTM A928 (EFW) |
| Raw Material Standard | ASTM A240 / ASME SA-240 |
| International Grades | UNS: S32750, EN: 1.4410 |
| Outer Diameter (OD) | 1/2 NPS to 24" NPS (21.3mm to 610mm)" |
| Wall Thickness (WT) | Schedule 10S, 40S, 80S, XS, XXS |
| Length | Up to 12 meters (40 ft), or custom lengths |
| Key Features | PREN > 40. Exceptional resistance to pitting, crevice corrosion, and SCC. Very high mechanical strength, allowing for lighter designs. Excellent toughness. |
| Testing & Inspection | Hydrostatic Test, NDT (Radiography, Ultrasonic), PMI, Chemical Analysis, Mechanical Testing, Ferrite Content Test (required) |
| Surface Finish | Annealed and Pickled Finish |
Understanding the Standard: ASTM A240 / ASME SA-240
What It Is:
This standard is the definitive blueprint for creating true super duplex steel, guaranteeing the elite properties that define the S32750 grade.
It mandates elevated levels of chromium, molybdenum, and nitrogen, the precise chemical formula required to achieve a Pitting Resistance Equivalent Number (PREN) over 40.
It governs the tightly controlled heat treatment and processing necessary to achieve the critical austenite-ferrite phase balance for maximum strength and toughness.
It serves as the master document for the raw material, ensuring the plate used for our pipes possesses the exact microstructure to withstand extreme environments.
Why It Is Your Core Focus:
Our unwavering commitment to this standard is your guarantee of superior defense and absolute reliability in the most challenging applications.
It is your assurance of exceptional performance in hot seawater, aggressive chemical streams, and other high-chloride environments where lesser alloys would quickly fail.
This standard ensures the material has the ultra-high mechanical strength required for deep-sea applications and high-pressure systems, enabling safer, more efficient designs.
It provides the certified, verifiable proof of compliance needed for mission-critical projects where material integrity is the paramount concern, ensuring peace of mind.
S32750 / 1.4410 Stainless Steel Material Properties
| Element | Content (%) |
|---|---|
| Carbon (C) | 0.030 |
| Chromium (Cr) | 24.0 - 26.0 |
| Nickel (Ni) | 6.0 - 8.0 |
| Molybdenum (Mo) | 3.0 - 5.0 |
| Nitrogen (N) | 0.24 - 0.32 |
| Copper (Cu) | 0.50 |
| Manganese (Mn) | 1.20 |
| Silicon (Si) | 0.80 |
| Property | Value (Minimum) |
|---|---|
| Tensile Strength | 116 ksi (800 MPa) |
| Yield Strength (0.2% Offset) | 80 ksi (550 MPa) |
| Elongation in 2 (50mm)" | 15% |
| Hardness | 32 HRC (Maximum) |
Applications of S32750 / 1.4410 Super Duplex Stainless Steel Pipe
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Get a Quote for S32750 / 1.4410 Super Duplex Pipe
When your system faces severe chloride attack and extreme pressures, our S32750 Super Duplex pipe is the proven solution. Engineered for zero-failure tolerance in the harshest environments, it ensures the ultimate in strength and corrosion resistance. Contact our specialists for a quote today.
