Table of Contents
- Super Duplex Steel S32760 Overview
- Technical Specifications
- Chemical Composition & Mechanical Properties
- Types of UNS S32760 Hex Bars
- Key Advantages of UNS S32760 Hex Bars
- Key Applications of UNS S32760 Hex Bars
- Quality Assurance & Inspection
- Global Export Markets
- Frequently Asked Questions
- Contact Aurum Overseas
Super Duplex Steel S32760 Overview
Engineered with additions of copper and tungsten, Super Duplex Zeron 100 Hexagon Bars deliver exceptional resistance to localized crevice attack and hot inorganic acids. Aurum Overseas serves as a specialized Super Duplex Steel S32760 Hex Bars Supplier, supplying high-yield bar stock for severe subsea hardware and seawater systems.
As an established Super Duplex Steel S32760 Hex Bars Exporter, we maintain ready inventories of cold-drawn Super Duplex S32760 Bright Hex Bars for CNC threading and heavy Super Duplex S32760 Forged Hex Bars for pressure valves. Every lot is solution-annealed and fully certified with EN 10204 3.1 mill test reports.
We export certified UNS S32760 Hex Bars and Super Duplex Steel F55 Hex Bars directly to offshore platforms, flue gas desulfurization plants, and chemical refineries across the USA, UK, Germany, UAE, Saudi Arabia, and global markets.
Technical Specifications
| Technical Parameter | Specification Standard |
|---|---|
| Material Specifications | ASTM A276, ASTM A479, ASME SA276, ASME SA479, EN 10088-3 |
| UNS Designation | UNS S32760 (Dual Certified with Grade F55 / Zeron 100) |
| Across-Flats (AF) Size Range | 6.0 mm to 100.0 mm (1/4" to 4" Hexagon) |
| Length Options | 1,000 mm to 6,000 mm, Precision Sawing Cut-to-Length |
| Surface Finishes | Cold Drawn, Centerless Ground, Bright Annealed, Hot Forged, Rough Machined |
| Heat Treatment Condition | Solution Annealed (1080 °C to 1140 °C, Water Quenched) |
| Dimensional Tolerances | ASTM A484 / ISO 286-2 (h9, h10, h11 hex profile tolerances) |
Chemical Composition & Mechanical Properties
Equivalent Standards
| Standard / Grade | Werkstoff Nr. | UNS Designation | EN Symbol | Common Name |
|---|---|---|---|---|
| Super Duplex S32760 | 1.4410 / 1.4501 | S32760 | X2CrNiMoCuWN25-7-4 | Zeron 100 / F55 |
Chemical Composition (%)
| Element | Specification Range (UNS S32760) |
|---|---|
| Carbon (C) | 0.05 max |
| Manganese (Mn) | 1.00 max |
| Silicon (Si) | 1.00 max |
| Phosphorus (P) | 0.030 max |
| Sulfur (S) | 0.010 max |
| Chromium (Cr) | 24.00 – 26.00 |
| Molybdenum (Mo) | 3.00 – 4.00 |
| Nickel (Ni) | 6.00 – 8.00 |
| Nitrogen (N) | 0.20 – 0.30 |
| Copper (Cu) | 0.50 – 1.00 |
| Tungsten (W) | 0.50 – 1.00 |
| Iron (Fe) | 57.61 min |
Mechanical & Physical Properties
| Property Parameter | Value (Metric / Imperial) |
|---|---|
| Density | 7.80 g/cm³ (0.281 lb/in³) |
| Melting Point | 1350 °C (2460 °F) |
| Tensile Strength (Min) | 800 MPa (116,000 Psi) |
| Yield Strength (0.2% Offset, Min) | 550 MPa (80,000 Psi) |
| Elongation (Min) | 15 % |
| Hardness (Max) | 310 HBW / 32 HRC |
Types of UNS S32760 Hex Bars
Aurum Overseas supplies Super Duplex Steel S32760 (F55 / Zeron 100) hex bars in precision bright and heavy forged conditions for severe subsea and acidic environments.
Super Duplex S32760 Bright Hex Bars
Super Duplex S32760 Forged Hex Bars
Key Advantages of UNS S32760 Hex Bars
Enhanced Acid Protection
Added copper and tungsten protect components against severe sulfuric and hydrofluoric acid attack.
High Pitting Resistance (PREN ≥ 42)
High chromium, molybdenum, and nitrogen prevent localized pitting and crevice corrosion in warm seawater.
Exceptional Yield Strength
High 550 MPa proof stress enables structural weight reduction while maintaining high tensile loads.
Sulfide Stress Immunity
Resists stress corrosion cracking in high-pressure oil and gas environments containing sour gas.
Key Applications of UNS S32760 Hex Bars
| Industry | Applications | Operational Benefit |
|---|---|---|
| Subsea Energy | Subsea manifold bolts, wellhead tie rods, riser plugs | High mechanical strength and complete immunity to sour gas cracking. |
| Desalination & FGD | Absorber tower fasteners, agitator shafting, slurry valves | Resists severe erosion and crevice corrosion from acidic chloride slurries. |
| Chemical Processing | Sulfuric acid pump shafts, reactor fittings, hex plugs | Copper alloying ensures long-term resistance to reducing inorganic acids. |
| Marine Infrastructure | Marine drive shafting bolts, subsea pins, winch fasteners | Superior fatigue resistance and durability in high-velocity seawater splash zones. |
Quality Assurance & Inspection
As a trusted Super Duplex Steel S32760 Hex Bars Exporter, every batch undergoes strict quality control testing to meet global engineering standards:
- Microstructure & Phase Ratio Analysis: Tested per ASTM E562 to guarantee a 45–55% ferrite phase balance free of deleterious sigma phases.
- Critical Crevice Corrosion (CCT) Testing: Evaluated per ASTM G48 Method D to confirm superior resistance in aggressive chloride solutions.
- Positive Material Identification (PMI): 100% XRF chemical verification to confirm exact alloying elements, including Cu and W additions.
- Ultrasonic Inspection (NDT): Tested per ASTM A388 to detect internal voids, forging bursts, or structural inclusions.
Global Export Markets
As an established Super Duplex Steel S32760 Hex Bars Exporter, Aurum Overseas supplies fully certified UNS S32760 / F55 / Zeron 100 Hex Bars to global subsea, FGD, and chemical processing centers:
USA
Canada
Mexico
Germany
United Kingdom
France
Italy
Netherlands
Belgium
Spain
Poland
UAE
Saudi Arabia
Qatar
Kuwait
Oman
Bahrain
Frequently Asked Questions
UNS S32760 contains intentional additions of copper (0.50–1.00%) and tungsten (0.50–1.00%), providing better resistance to mineral acids like sulfuric acid compared to UNS S32750.
UNS S32760 hex bar stock is manufactured in accordance with ASTM A276, ASTM A479, and ASME SA479 standards for pressure vessels and structural applications.
Pre-formed hexagonal geometry provides parallel wrench flats, eliminating additional milling steps when manufacturing high-torque bolts, valve stems, and hydraulic plugs.
All orders from Aurum Overseas include full EN 10204 3.1 Mill Test Certificates detailing heat chemistry, mechanical property test results, impact values, and corrosion reports.
Contact Aurum Overseas
Partner with a leading Super Duplex Steel S32760 Hex Bars Supplier and Super Duplex Steel S32760 Hex Bars Exporter for certified stock, custom sawing, and rapid global export delivery.