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Super Duplex Steel S32750 Overview
Aurum Overseas is a leading Super Duplex Steel S32750 Square Bars Supplier stocking high-strength 25% chromium profiles engineered to eliminate equipment downtime. Designed for extreme durability, our solid square stock offers double the strength of standard stainless steel and exceptional protection against harsh saltwater pitting and chemical corrosion.
As a trusted Super Duplex Steel S32750 Square Bars Exporter, we deliver precision Super Duplex F53 Bright Square Bars for high-speed CNC machining and heavy Super Duplex F53 Forged Square Bars for load-bearing frames. Every shipment includes heat traceability, EN 10204 3.1 mill certification, and custom cut-to-length sizing to cut scrap costs.
We supply certified Super Duplex 2507 Square Bars and UNS S32750 Square Bars to offshore, desalination, and chemical sectors across the USA, Canada, Germany, UK, UAE, Saudi Arabia, and global markets.
Technical Specifications
| Technical Parameter | Specification Details |
|---|---|
| Material Specifications | ASTM A276, ASTM A479, ASME SA276, ASME SA479, ASTM A182 (F53) |
| UNS Designation | UNS S32750 |
| Size Range (Square) | 6.0 mm x 6.0 mm to 250 mm x 250 mm (1/4" to 10" square) |
| Length Options | 1,000 mm to 6,000 mm, Custom Cut-to-Length |
| Surface Finishes | Bright (Cold Drawn / Centerless Ground), Forged (Hot Forged / Rough Turned) |
| Heat Treatment | Solution Annealed (1020 °C – 1100 °C followed by rapid water quench) |
| Dimensional Tolerances | ASTM A484 / ISO h9, h10, h11 square profile tolerances |
Chemical Composition & Mechanical Properties
Equivalent Standards
| Standard Grade | UNS | Werkstoff Nr. | EN Standard |
|---|---|---|---|
| Super Duplex 2507 / F53 | S32750 | 1.4410 | X2CrNiMoN25-7-4 |
Chemical Composition (%)
| Element / Parameter | S32750 Composition Standard Range (%) |
|---|---|
| Carbon (C) | 0.030 max |
| Manganese (Mn) | 1.20 max |
| Silicon (Si) | 0.80 max |
| Phosphorus (P) | 0.035 max |
| Sulfur (S) | 0.020 max |
| Chromium (Cr) | 24.00 – 26.00 |
| Molybdenum (Mo) | 3.00 – 5.00 |
| Nickel (Ni) | 6.00 – 8.00 |
| Nitrogen (N) | 0.24 – 0.32 |
| Iron (Fe) | 58.095 min |
Mechanical & Physical Properties
| Property Parameter | Technical Value |
|---|---|
| Density | 7.8 g/cm³ |
| Melting Point | 1350 °C (2460 °F) |
| PREN (Pitting Resistance Equivalent No.) | ≥ 42 |
| Tensile Strength (Min) | 800 MPa (116,000 psi) |
| Yield Strength (0.2% Offset, Min) | 550 MPa (80,000 psi) |
| Elongation (Min) | 15% |
Types of Super Duplex Grade 2507 Square Bars
Aurum Overseas supplies Super Duplex Steel S32750 (Grade 2507 / F53) square bars in precision bright and heavy forged conditions for extreme high-strength and corrosion-resistant applications.
Super Duplex F53 Bright Square Bars
Super Duplex F53 Forged Square Bars
Key Advantages of UNS S32750 Square Bar
High Strength
Handles heavy loads and demanding industrial use while providing long-term durability.
Excellent Corrosion Resistance
Performs reliably in seawater, marine, and chloride-rich environments.
Good Resistance to Cracking
Helps maintain dependable performance in harsh and high-salinity conditions.
Built for Tough Applications
Suitable for pumps, valves, shafts, supports, and other components exposed to demanding operating conditions.
Key Applications of UNS S32750 Square Bar
| Industry | Applications | Key Benefit |
|---|---|---|
| Subsea Oil & Gas | Manifold frames, valve stems | Handles high pressure and harsh offshore conditions. |
| Desalination Systems | RO pump shafts | Resists corrosion in concentrated seawater and brine. |
| Chemical Processing | Agitators, heat exchanger supports | Performs well in demanding chemical environments. |
| Pulp & Paper | Bleach washer shafts, structural components | Withstands aggressive bleaching chemicals and gases. |
Quality Testing & Inspection
As a quality-focused Super Duplex Steel S32750 Square Bars Supplier, every order undergoes comprehensive testing:
- Mill Test Certification: EN 10204 3.1 certification verifying heat traceability and chemical/mechanical compliance.
- Microstructure Ferrite Count: Metallographic analysis per ASTM E562 confirming a balanced 40%–60% phase distribution.
- Ferric Chloride Pitting Test: Testing per ASTM G48 Method A to verify pitting resistance in extreme temperatures.
- Ultrasonic Internal Inspection: Non-destructive testing per ASTM A388 on forged square billets to verify core sound structure.
Global Export Markets
As an established Super Duplex Steel S32750 Square Bars Exporter, Aurum Overseas supplies fully certified UNS S32750 / F53 / Grade 2507 Square Bars to global energy and marine engineering centers:
USA
Canada
Mexico
Germany
United Kingdom
France
Italy
Netherlands
Belgium
Spain
Poland
UAE
Saudi Arabia
Qatar
Kuwait
Oman
Bahrain
Frequently Asked Questions
Super Duplex 2507 contains higher chromium (25%) and molybdenum (4%), delivering a higher PREN (≥ 42 vs ≥ 35) and greater yield strength (550 MPa vs 450 MPa).
F53 is the ASTM A182 forging grade designation matching UNS S32750 chemical composition and mechanical strength requirements.
Yes, UNS S32750 is specifically chosen for subsea oil and gas equipment due to its resistance to high chloride stress corrosion cracking and extreme hydrostatic pressure.
We supply cold-drawn Super Duplex F53 Bright Square Bars for machining and hot-forged Super Duplex F53 Forged Square Bars for structural frames.
Yes, as a trusted Super Duplex Steel S32750 Square Bars Exporter, every delivery includes certified EN 10204 3.1 mill test certificates.
Contact Aurum Overseas
Aurum Overseas provides certified Super Duplex Steel S32750 (Grade 2507 / F53 / 1.4410) square bars for subsea, marine, and high-consequence chemical applications.
Contact our sales team for current stock, custom cutting, or fast pricing: