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S32750 Stainless Steel Plate High Strength and Superior Pitting Resistance Alloy 2507
| Place of Origin | China |
|---|---|
| Brand Name | TISCO BAOSTEEL |
| Certification | ISO |
| Model Number | S32750 / 2507 |
| Minimum Order Quantity | 500 kgs |
| Price | 5000 - 7200 USD/Ton |
| Packaging Details | standard packing for export |
| Delivery Time | 5 - 12 days based on the quantity |
| Payment Terms | T/T, Western Union |
| Supply Ability | 20Ton per week |
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xProduct Details
| Products | Stainless Steel Plate | Grade | S32750 / 2507 |
|---|---|---|---|
| Thickness | 1.0 - 80.0mm | Width | 1500mm 1800mm 2000mm |
| Surface | NO.1 | Brand | BAOSTEEL TISCO |
| Standard | ASTM A240/240M | Loading Port | Shanghai Port |
Product Description
S32750 Stainless Steel Plate High Strength and Superior Pitting Resistance Alloy 2507
Products Specification
| Products Name | S32750 Duplex Stainless Steel Plate |
| Main Grades | Stainless Steel J1, J2, J4, 201, 202, 301, 304, 304H, 304L, 309, 309S, 310, 310S, 316, 316L, 316TI, 321, 321H, 347, 409, 410, 410S, 420, 430, 441, 904L,630,631,254SMO,253MA,2205,2507.etc |
| Thickness | 3.0 - 80.0mm |
| Width | 1250mm,1500mm ,1800mm,2000mm, or custom other size as request |
| Length | 2000mm, 2440mm, 3000mm, 5800mm, 6000mm, AS PER CUSTOMER’S REQUIREMENT |
| Type of Material | Laser Cutting |
| Form | Plate / coil |
| Test Certificate | Yes. |
| Finish | NO.1, 2B, 2D, 2H, 2R, No.4, HAIRLINE, SCOTCH BRITE, SATIN FINISH, NO.8, BA. |
| Brand | TISCO, LISCO,BAOSTEEL , POSCO, JISCO |
Overview
SAF 2507 (UNS S32750, EN 1.4410) is a super duplex stainless steel characterized by a balanced microstructure of approximately 50% ferrite (α) and 50% austenite (γ). This dual-phase structure combines exceptional strength, superior corrosion resistance, and excellent toughness, making it ideal for demanding industrial applications in aggressive environments136.
Key Features
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Exceptional Corrosion Resistance
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PRE (Pitting Resistance Equivalent) > 43: Outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking (SCC) in chloride-rich environments (e.g., seawater, chemical solutions)1710.
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Superior to 904L and comparable to 6% Mo super-austenitic grades (e.g., 254SMO)13.
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Resists diluted sulfuric/hydrochloric acids and organic acids (e.g., formic, acetic acid)78.
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High Mechanical Strength
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Yield Strength ≥ 550 MPa, Tensile Strength: 795–1000 MPa (twice the strength of standard austenitic steels like 316L)1810.
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Elongation: ≥25%, Hardness: ≤ 310 HB28.
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Thermal Stability
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Low thermal expansion coefficient and high thermal conductivity410.
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Temperature Limit: Prolonged exposure above 570°F (300°C) may reduce toughness; optimal use below this threshold410.
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Chemical Composition (wt.%)
| Element | Cr | Ni | Mo | N | Mn | C ≤ | Si ≤ | Fe |
|---|---|---|---|---|---|---|---|---|
| Content | 24.0–26.0 | 6.0–8.0 | 3.0–4.0 | 0.24–0.32 | ≤1.2 | 0.03 | ≤0.8 | Balance |
| Trace elements: P ≤ 0.035%, S ≤ 0.020%, Cu ≤ 0.50%1410. |
Physical Properties
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Density: 8.03 g/cm³
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Melting Point: 1300–1390°C
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Magnetism: Non-magnetic (annealed condition)48.
Corrosion Resistance Highlights
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Stress Corrosion Cracking (SCC): Excellent resistance in chloride environments17.
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Intergranular Corrosion: Low carbon content (≤0.03%) minimizes carbide precipitation risks78.
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Erosion-Corrosion & Fatigue: High resistance in marine and acidic media110.
Heat Treatment & Fabrication
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Solution Annealing: 1000–1052°C (rapid air/water cooling) to maintain 50/50 α/γ phase balance28.
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Welding:
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Recommended Filler: ER2594 wire or E2594 electrode28.
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Control heat input to avoid detrimental phase formation (e.g., sigma, chi phases)68.
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Applications
SAF 2507 plates are widely used in:
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Oil & Gas: Offshore platforms, heat exchangers, seawater piping, subsea components17.
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Chemical Processing: Reactors, pressure vessels, acid-handling equipment38.
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Desalination Plants: High-pressure RO systems, seawater pipelines15.
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Pollution Control: Flue gas desulfurization (FGD) scrubbers, absorber towers38.
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Marine & Structural: Propeller shafts, corrosion-resistant structural parts310.
Available Plate Specifications
| Parameter | Range |
|---|---|
| Thickness | 0.3 mm – 350 mm |
| Width | Standard: 1219–1500 mm |
| Surface Finish | 2B, polished, or customized |
| Standards | ASTM A240, ASME SA-182 |
Custom sizes and processing (e.g., cutting, grinding) available189.
Key Considerations
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Avoid High Temperatures: Prolonged use >300°C degrades toughness410.
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Cost Efficiency: Higher initial cost than 2205 duplex steel but cost-effective vs. nickel alloys18.
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Certifications: Supplied with mill test reports (MTRs) per ASTM standards89.
Why Choose SAF 2507 Plates?
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Weight Savings: High strength allows thinner sections vs. conventional steels610.
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Longevity: Nano-scale Cr-Mo-N segregation at phase boundaries enables self-repairing passive films6.
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Extreme Environment Suitability: Validated for 3000m deep-sea pressure and hydrogen-rich conditions6.
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