Super Duplex 2507 / ASTM A182 F53 / S32750Forging Metallurgy & Specs
25% Cr Super Duplex Steel with PREN ≥ 42 for Deepwater Offshore & Severe Chlorides. Hot-forged and precision-machined in Rajkot, Gujarat strictly up to 50 kg max piece weight with 100% Optical Emission Spectrometry (OES) PMI testing and EN 10204 3.1 MTC compliance.
Instant Material Engineering Data
Download verified engineering data sheets or initiate an RFQ directly with our metallurgical desk.
Quick AnswerFeatured
Super Duplex 2507 / ASTM A182 F53 / S32750 (UNS S32750 / 1.4410 / X2CrNiMoN25-7-4) offers a minimum tensile strength of 750 – 1000 MPa (116 – 145 ksi) and yield strength of 550 MPa min (80 ksi) with 310 HBW max (≤32 HRC) hardness. Manufactured by Jayesh Forge in Rajkot, Gujarat strictly up to 50 kg per piece, this alloy features PREN ≥ 42; immune to seawater crevice corrosion up to 60°C and severe sour gas service. Tested per ASTM A388 Level II ultrasonic standards with EN 10204 3.1 MTC inspection.
Super Duplex 2507 / ASTM A182 F53 / S32750 Chemical Analysis (% by Weight)
| Element | Chemical Symbol | Minimum (%) | Maximum (%) | Specification Role |
|---|---|---|---|---|
| Chromium | Cr | 24.00% | 26.00% | Forms passive chromium oxide layer for oxidation & corrosion resistance |
| Nickel | Ni | 6.00% | 8.00% | Improves notch toughness, cryogenic ductility & hardenability |
| Molybdenum | Mo | 3.00% | 5.00% | Prevents chloride pitting and enhances high-temperature creep strength |
| Nitrogen | N | 0.24% | 0.32% | Austenite stabilizer; increases yield strength and PREN pitting number |
| Carbon | C | — | 0.03% | Controls base tensile strength & core hardness |
| Copper | Cu | — | 0.50% | Improves corrosion resistance in sulfuric environments |
* Ladle chemical analysis verified using optical emission spectrometer (OES) calibrated to NIST certified reference materials. Full chemical results recorded on EN 10204 3.1 MTC.
Super Duplex 2507 / ASTM A182 F53 / S32750 Mechanical Properties
Ultimate breaking stress threshold
Elastic deformation limit
Plastic ductility before rupture
Surface indentation resistance
Cross-sectional necking ductile ratio
Dynamic fracture energy absorption
Thermal Cycle & Machining Parameters
1200°C – 1000°C (rapid transfer required; forge finish above 1000°C)
Solution annealed at 1050°C – 1120°C, rapid pressurized water quench to prevent sigma phase precipitation
PREN ≥ 42; immune to seawater crevice corrosion up to 60°C and severe sour gas service
Machinability: 30% of AISI 1212 • Requires 2507 matching super duplex wire with argon/nitrogen shielding gas to preserve nitrogen in the weld metal
International Equivalent Material Grades
Forged Components Manufactured in Super Duplex 2507
Super Duplex 2507 Frequently Asked Technical Questions
Super Duplex 2507 exhibits a Critical Pitting Temperature (CPT) exceeding 60°C (140°F) per ASTM G48 Method A, meaning it withstands boiling seawater without initiating localized pitting corrosion.
Related Industrial Metallurgy Specifications
Explore Jayesh Forge Engineering & Sourcing Catalogs
Browse our manufacturing lines, dimensional tables, and quality protocols strictly up to 50 kg max piece weight.
Request Commercial Quotation for Super Duplex 2507 Forgings
Manufactured in Rajkot, Gujarat strictly up to 50 kg max piece weight. 4-hour quote turnaround committed.