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Super Duplex Steel S32760 Threaded Bars Overview
Aurum Overseas is a premier Super Duplex Steel S32760 Threaded Bars Supplier and leading Super Duplex Steel S32760 Threaded Bars Exporter, offering high-alloy fasteners modified with Tungsten and Copper additions. Our stock of Super Duplex Steel Zeron 100 Threaded Bars delivers unmatched mechanical strength and superior corrosion resistance under heavy loads.
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Formulated with 25% Chromium, Molybdenum, Tungsten, and Copper, high-strength UNS S32760 Threaded Rods achieve a PREN rating above 42. This chemistry gives our Super Duplex Steel F55 Threaded Rods maximum resistance to sulfuric acid and crevice corrosion in hot seawater.
Engineered for subsea oil manifolds, pollution control scrubbers, mine leaching circuits, and marine shafting, our all-thread studs prevent joint leakage under high pressure. Contact Aurum Overseas for factory quotes, custom length sawing, and fast global shipping.
Technical Specifications
| Technical Parameter | Specification Standard |
|---|---|
| Material Specifications | ASTM A276, ASTM A479, ASME SA276, ASME SA479, EN 10204 3.1 |
| UNS Designation | UNS S32760 (Super Duplex Zeron 100 / F55) |
| Thread Size Range | M6 to M100 (1/4" to 4.0" Nominal Diameter) |
| Thread Profiles | UNC, UNF, UNEF, Metric Coarse, Metric Fine, Acme Threads |
| Length Options | 1,000 mm, 2,000 mm, 3,000 mm, Custom Cut-to-Length All-Thread Studs |
| Thread Class / Fit | Class 2A / 3A (Imperial) & 6g / 6h (Metric Profile Tolerances) |
| HSN Code | 73181500 |
Chemical Composition & Mechanical Properties
Equivalent Standards
| Grade | Standard | W.Nr. | UNS | Trademark |
|---|---|---|---|---|
| Super Duplex Steel S32760 | ASTM A276 / A479 | 1.4410 / 1.4501 | S32760 | Zeron 100 |
Chemical Composition (%)
| Chemical Element | Super Duplex Steel S32760 (UNS S32760) |
|---|---|
| Chromium (Cr) | 24.00 – 26.00 |
| Nickel (Ni) | 6.00 – 8.00 |
| Molybdenum (Mo) | 3.00 – 4.00 |
| Nitrogen (N) | 0.20 – 0.30 |
| Tungsten (W) | 0.50 – 1.00 |
| Copper (Cu) | 0.50 – 1.00 |
| 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 |
| Iron (Fe) | 57.61 min |
Mechanical & Physical Properties
| Property Parameter | Value / Compliance Boundary |
|---|---|
| Density | 7.80 g/cm³ (0.281 lb/in³) |
| Melting Point | 1350 °C (2460 °F) |
| Tensile Strength (Min) | 750 – 1000 MPa (109,000 Psi) |
| Yield Strength (0.2% Offset, Min) | 550 MPa (80,000 Psi) |
| Elongation (Min) | 25 % |
| Hardness (Max) | 28 HRC / 270 HBW |
Key Advantages of UNS S32760 Threaded Rods
Maximum Yield Strength
High yield strength above 550 MPa allows compact bolt designs and lighter assemblies without losing clamping force.
Enhanced Acid Protection
Targeted Copper and Tungsten additions stop crevice rust and severe corrosion in warm sulfuric and nitric acids.
No Stress Cracking
Balanced dual-phase structure protects studs from sudden cracking in sour oilfield gas (H₂S) and hot marine environments.
Smooth & Secure Threading
Precision roll-threaded construction prevents thread stripping and jamming during high-torque tightening.
Quality Testing & Inspection
Aurum Overseas subjects every order to strict quality control processes to ensure compliance with international fastener standards and client specifications:
- Chemical Heat Verification (PMI): Spectro / XRF material analysis verifying exact elemental chemistry including Tungsten and Copper against ASTM standards.
- Thread Pitch & Gage Inspection: Go/No-Go thread gage and optical comparator testing ensuring class 2A/3A and 6g pitch tolerances.
- Mechanical Property Certification: Factory batch verification of tensile, yield strength, and elongation supported by EN 10204 3.1 MTRs.
- Optional Third-Party Testing: Ferrite count testing (ASTM E562), Corrosion resistance testing (ASTM G48 Method A), or Proof Load testing provided upon request.
Global Export Markets
As an established Super Duplex Steel S32760 Threaded Bars Exporter, Aurum Overseas supplies fully certified ASTM A276 / A479 UNS S32760 threaded rods to global chemical processing, offshore, desalination, and high-strength industrial facilities:
USA
Canada
Mexico
Germany
United
Kingdom
France
Italy
Netherlands
Belgium
Spain
Poland
UAE
Saudi
Arabia
Qatar
Kuwait
Oman
Bahrain
Frequently Asked Questions
S32760 includes intentionally added Tungsten (0.50–1.00%) and Copper (0.50–1.00%), which provide superior resistance to acidic media (like sulfuric acid) and enhanced crevice corrosion resistance compared to S32750.
Zeron 100 is the proprietary brand name for UNS S32760 / F55 super duplex steel, known globally for its high mechanical strength and specialized alloy chemistry for extreme marine and chemical service.
UNS S32760 threaded studs should not be exposed to continuous service temperatures above 300 °C (572 °F) to prevent intermetallic phase precipitation and embrittlement.
They are extensively used in seawater desalination intake pumps, offshore gas platforms, and sour gas handling equipment across the UAE, Saudi Arabia, Qatar, and Oman.
Contact Aurum Overseas
Contact Aurum Overseas, a trusted Super Duplex Steel S32760 Threaded Bars Supplier & Exporter, for certified high-temperature alloy threaded rods, custom length sawing, and fast international delivery.