S32750 Super Duplex Stainless Steel Pipe ASTM A790 High Mechanical Strength
Price:
Negotiable (Request a Quote)
MOQ:
100kg
Delivery Time:
15-25days
Brand:
Baosteel，TISCO
Product Description
S32750 Super Duplex Stainless Steel Pipe
S32750 super duplex stainless steel pipe is a super duplex stainless steel with a ferritic-austenitic microstructure (approximately 50% ferrite / 50% austenite). It is specifically designed for applications requiring exceptional corrosion resistance combined with very high mechanical strength.
The alloy contains high levels of chromium (25%), molybdenum (4%), and nitrogen (0.3%), which provide outstanding resistance to pitting, crevice corrosion, and stress-corrosion cracking (SCC) in aggressive environments containing chlorides or hydrogen sulfide (H₂S). S32750 offers approximately twice the yield strength of standard austenitic stainless steels (304, 316), allowing for significant weight reduction in structural applications.
Product Specifications
| Parameter | Details |
|---|---|
| Standard | ASTM A240 / ASME SA240 |
| Grade | Super Duplex 2507 (UNS S32750 / S32760) |
| Type | Hot-rolled or cold-rolled plate |
| Thickness Range | 1.5mm - 100mm (1/16" - 4") |
| Width Range | 1000mm - 3500mm (standard: 1500mm, 2000mm, 2500mm) |
| Length Range | 3000mm - 12000mm (custom lengths available) |
| Surface Finish | No.1 (hot rolled, annealed & pickled) / No.2B (cold rolled) / Polished |
| Processing Service | Cutting (plasma, laser, waterjet), drilling, bending, welding |
| Test Certificate | EN 10204 3.1 / Mill Test Certificate (3.2 available) |
| Applications | Offshore platforms, chemical tankers, desalination, FGD, heat exchangers |
Chemical Composition (%, typical)
| Element | Min % | Max % |
|---|---|---|
| Chromium (Cr) | 24.0 | 26.0 |
| Nickel (Ni) | 6.0 | 8.0 |
| Molybdenum (Mo) | 3.0 | 5.0 |
| Nitrogen (N) | 0.24 | 0.32 |
| Carbon (C) | -- | 0.030 |
| Manganese (Mn) | -- | 1.20 |
| Silicon (Si) | -- | 0.80 |
| Phosphorus (P) | -- | 0.035 |
| Sulfur (S) | -- | 0.020 |
| Copper (Cu) | -- | 0.50 |
| Iron (Fe) | Balance | Balance |
Mechanical Properties
Physical Properties
| Property | Value |
|---|---|
| Density | 7.80 g/cm³ (0.282 lb/in³) |
| Melting Range | 1350 - 1400 °C (2460 - 2550 °F) |
| Coefficient of Thermal Expansion | 13.0 μm/m*K (7.2 μin/in*°F) |
| Modulus of Elasticity | 200 kN/mm² (29,000 ksi) |
Typical Tensile Properties (Annealed Condition)
| Property | Value |
|---|---|
| Tensile Strength, min | 800 MPa (116 ksi) |
| Yield Strength (0.2% offset), min | 550 MPa (80 ksi) |
| Elongation, min | 15% |
| Hardness (Brinell), max | 310 HB |
Comparison: Super Duplex vs Other Grades
| Property | S32750 (Super Duplex) | S32205 (Duplex 2205) | 316L (Austenitic) |
|---|---|---|---|
| Yield strength (min) | 550 MPa | 450 MPa | 205 MPa |
| PRE (Pitting Resistance Eq.) | ≥40 | ≥35 | 24-26 |
| SCC resistance | Excellent | Good | Poor |
| Cost | Highest | Moderate | Low |
| Best application | Seawater, sour gas | General chemical | General purpose |
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Company
Shanxi Zhongcheng Metal Co., Ltd.
Location
Room 2, No. 221 Tianzhang Avenue, Fengdong New City, Xi'an, Shaanxi Province
Contact Person
Zhongcheng Metal