Description
Super Duplex 32750 (UNS S32750 / SAF 2507) is a high-performance super duplex stainless steel containing approximately 25% chromium, 7% nickel, and 4% molybdenum.
It combines very high mechanical strength—approximately twice the yield strength of conventional austenitic stainless steels—with outstanding resistance to chloride-induced pitting, crevice corrosion, and stress corrosion cracking, making it ideal for demanding marine, chemical, oil & gas, petrochemical, and process-industry applications.
Technical Explanation:
Super Duplex 32750 / UNS S32750 / SAF 2507 Fasteners
🔩 Key Features
- High strength — significantly higher yield strength than conventional 300-series stainless steels.
- Excellent chloride resistance — outstanding resistance to pitting and crevice corrosion.
- High resistance to SCC — excellent resistance to chloride stress corrosion cracking.
- High chromium & molybdenum content — provides superior corrosion protection in aggressive environments.
- Excellent seawater performance — suitable for marine and offshore applications.
- Good mechanical durability — ideal for heavily loaded bolted joints.
- Long service life — reduced maintenance and replacement requirements.
- Wide temperature capability — suitable for demanding process environments when properly specified.
⭐ Why Aanuraj Fasteners?
- Specialist in stainless steel & exotic alloy fasteners
- Manufacturing capability for Super Duplex 32750 fasteners
- Available in bolts, studs, nuts, washers and special fasteners
- Hot forging + CNC machining + thread rolling capabilities
- PMI verification for material identification
- Dimensional and thread inspection for consistent quality
- Custom sizes, lengths and configurations as per customer drawings
- Suitable for critical Oil & Gas, Petrochemical and Infrastructure applications
- ISO 9001:2015 quality management system
- Focus on traceability, quality control and reliable delivery
- Engineered for Reliability. Trusted for Performance.
🏭 Typical Applications
Oil & Gas
- Offshore platforms
- Wellhead equipment
- Pipeline systems
- Subsea equipment
- Flanges and pressure vessels
Petrochemical & Chemical
- Chemical processing plants
- Heat exchangers
- Reactors
- Storage tanks
- Piping systems
Marine & Offshore
- Seawater systems
- Desalination plants
- Marine structures
- Shipbuilding
- Offshore equipment
Power & Energy
- Power plants
- Cooling-water systems
- Flue-gas equipment
- Renewable-energy infrastructure
Other Critical Industries
- Water & wastewater treatment
- Pulp & paper
- Mining
- Fertilizer plants
- Heavy engineering
SUPER DUPLEX 32750 FASTENERS
UNS S32750 / SAF 2507 • BUILT FOR EXTREME CORROSION & HIGH STRENGTH
