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S32750 2507 Super Duplex Steel Seamless Tube for Marine
| MOQ: | 1pc |
| Price: | Above 2usd/kg |
| Standard Packaging: | Plywood case/iron case With plastic end caps and PVC flim protection |
| Delivery Period: | 3 weeks/container |
| Payment Method: | L/C,D/A,D/P,T/T,Western Union,MoneyGram |
| Supply Capacity: | 200 ton/month |
S32750 super duplex steel tube
,2507 seamless marine tube
,stainless steel seamless tube
| Attribute | Value |
|---|---|
| Product Name | Super Duplex Seamless Tube |
| Material | Super Duplex S32750 / 2507 |
| Standard | ASTM A789 / ASME SA789 |
| Length | Fixed Length (e.g., 6m) |
| Surface Finish | Annealed & Pickled |
| Application | General Industrial Piping, Fluid Conveyance, Structural |
Super Duplex steel S32750 seamless tube is engineered for extreme performance in highly corrosive environments. With a Pitting Resistance Equivalent Number (PREN) exceeding 40, it offers unparalleled resistance to localized corrosion, making it ideal for marine, subsea, desalination, and oil & gas applications.
Super Duplex S32750 features a unique chemical composition with high chromium, molybdenum, and nitrogen content. This combination provides exceptional resistance to stress corrosion cracking (SCC) in high-chloride environments like warm seawater, outperforming standard duplex and most austenitic stainless steels.
Chemical Composition (wt %), ASTM A789:
- 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 max
- Copper (Cu): 0.50 max
Mechanical Properties (Minimum), ASTM A789:
- Tensile Strength: 800 MPa (116 ksi)
- Yield Strength: 550 MPa (80 ksi)
- Elongation: 15%
- Hardness: 310 HBW / 32 HRC max
S32750 Seamless Tube is specified for critical marine applications including:
- Control lines and hydraulic pipes in subsea oil and gas production systems
- High-pressure end of reverse osmosis in seawater desalination (SWRO)
- Process piping for handling highly corrosive media in offshore chemical plants
Our stringent quality control measures include:
- Metallographic analysis to ensure optimal austenite/ferrite phase ratio (40-60%)
- Solution annealing and quenching heat treatment
- Comprehensive non-destructive testing and dimensional inspection
We provide reliable worldwide export services with:
- Expertise in international logistics and documentation
- Secure export packaging for high-value materials
- Timely delivery to global destinations
