2507 Super Duplex SS Plate 5mm-50mm UNS S32750 Offshore Seawater Chloride Resistant
Product Spotlights
Product Description:
This 2507 super duplex stainless steel plate meets UNS S32750 specification and covers a thickness range from 5mm to 50mm. With a Pitting Resistance Equivalent Number (PREN) of 40 or higher, it offers exceptional resistance to pitting, crevice corrosion, and chloride-induced stress corrosion cracking in the most aggressive marine and chemical environments. The duplex microstructure delivers approximately twice the strength of standard austenitic stainless steels. Typical applications include offshore oil and gas platforms, seawater handling systems, desalination plants, chemical tankers, flue gas desulfurization units, subsea pipelines, and high-pressure marine equipment.
Parameter |
Specification / Range |
Remarks |
Standards |
ASTM A240, A480, EN 100882, JIS G4304/4305, GB/T 3280 |
Others (e.g. DIN, BS) on request |
Common Grades |
304, 304L, 316, 316L, 321, 309S, 310S, 430, 201, 202, 904L, 2205, 2507 |
Duplex & super austenitic available |
Thickness range |
Cold rolled: 0.3mm – 6.0mm; Hot rolled: 3.0mm – 120mm |
Custom on request |
Width range |
Cold rolled: 1000 / 1219 / 1500 mm (max 2000mm); Hot rolled: 1500 – 3000 mm |
Slitting / trimming available |
Length range |
Cold rolled: 2000 – 6000 mm; Hot rolled: 3000 – 12000 mm |
Custom cut to length |
Surface finish |
2B, BA, No.1, HL (hairline), No.4, mirror (8K), embossed, colored |
Pickled & annealed for hot rolled |
Tolerances – thickness |
Cold rolled: ±0.03mm to ±0.08mm (depending on thickness) |
Per ASTM A480 |
Tolerances – width/length |
±2mm (sheared), ±1mm (slit) |
Laser/plasma ±0.5mm |
Flatness |
≤3mm/m for cold rolled; ≤5mm/m for hot rolled (standard) |
Leveling service available |
Mechanical properties (typical – 304) |
Tensile strength ≥515 MPa; Yield ≥205 MPa; Elongation ≥40% |
Varies by grade & temper |
Hardness (304/316) |
≤200 HB; ≤92 HRB |
Annealed condition |
Density |
7.93 g/cm³ (304/316); 7.70 g/cm³ (430) |
– |
Surface protection |
Interleaving paper + PE film on one or both sides |
Optional |
Q1:Do you offer sample orders?
A:Yes, samples are available for quality evaluation. Sample cost is charged but refundable upon bulk order.
Q2:What is your MOQ?
A:Our standard MOQ is 100 kg per specification. For common grades and standard sizes, we accept small batch orders. Mixed orders for different products are also welcome.
Q3:Can you provide custom sizes?
A:Yes, we can produce any length, width, thickness, or diameter based on your drawings. Cutting, slitting, and other processing services are available with tolerance as required.
Q4:What certifications do you provide?
A:Each shipment comes with EN 10204 3.1 mill test certificate (MTC). Third-party inspection reports (SGS/BV/TÜV) can be arranged upon request.
Q5:What is your lead time?
A:7–15 working days for stock items. 20–30 days for custom orders, depending on quantity and specification.
Q6:What surface treatments are available?
A:Various surface treatments are available upon request, including pickled, polished, coated, oiled, or as required.
Q7:What payment terms do you accept?
A:T/T (30% deposit + 70% against BL copy), L/C at sight, Western Union, etc.
Q8:What about packaging for export?
A:Standard seaworthy packaging with waterproof protection, steel straps, corner protectors, and ISPM 15 fumigation certification. Custom packaging is available as required.
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