Table of Contents
- Super Duplex Steel S32760 Round Bars Overview
- Technical Specifications
- Mechanical Properties & Chemical Composition
- Types of Super Duplex Steel S32760 Round Bars
- Key Advantages of UNS S32760 Round Bars
- Key Applications of UNS S32760 Round Bars
- Quality Testing & Inspection
- Global Export Markets
- Frequently Asked Questions
- Contact Aurum Overseas
Super Duplex Steel S32760 Round Bars Overview
Aurum Overseas supplies high-performance Super Duplex Steel S32760 Round Bars engineered to eliminate pitting and crevice corrosion in severe acid and subsea environments. Alloyed with copper and tungsten, our Zeron 100 / F55 bar stock delivers exceptional yield strength to reduce component weight without sacrificing pressure ratings.
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As a leading Super Duplex Steel S32760 Round Bars Supplier and Exporter, we stock certified ASTM A276 and A479 UNS S32760 bars with EN 10204 3.1 MTCs. We offer centerless ground bright finishes, heavy forged Zeron 100 bars, and UNS S32750 alternatives.
We export these specialized high-alloy dual-phase bars across North America (USA, Canada, Mexico), Europe (Germany, UK, France, Italy, Netherlands, Norway), the Middle East (UAE, Saudi Arabia, Qatar, Kuwait, Oman), and Asia-Pacific (Singapore, Malaysia, Australia).
Technical Specifications
| Technical Parameter | Super Duplex Steel S32760 |
|---|---|
| Material Designation | Super Duplex Zeron 100 / F55 / UNS S32760 |
| UNS Number | UNS S32760 |
| Werkstoff Number | 1.4501 |
| Manufacturing Standards | ASTM A276 UNS S32760 Round Bars, ASTM A479 UNS S32760 Round Bars, EN 10088-3 |
| Diameter Capability | 3 mm to 500 mm (1/8" to 20" NB) |
| Length Specifications | 3 Meters, 6 Meters, Cut-to-Length |
| Dimensional Tolerances | ISO h8, h9, h10, h11, DIN 1013 |
| Delivery Conditions | Solution Annealed & Water Quenched (1080°C – 1140°C) |
Mechanical Properties & Chemical Composition
Equivalent Grades of A276 Super Duplex S32760 Bars
| Standard | Werkstoff Nr. | UNS |
|---|---|---|
| Super Duplex S32760 | 1.4501 | S32760 |
Chemical Composition of Zeron 100 Round Bars
| Chemical Element | Composition Range (%) |
|---|---|
| Carbon (C) | 0.030 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 |
| Tungsten (W) | 0.50 – 1.00 |
| Copper (Cu) | 0.50 – 1.00 |
| Nitrogen (N) | 0.20 – 0.30 |
| Iron (Fe) | Balance |
Mechanical Properties of UNS S32760 Round Bars
| Property | Value |
|---|---|
| Ultimate Tensile Strength | 750 MPa (109 ksi) min |
| Yield Strength (0.2% Offset) | 550 MPa (80 ksi) min |
| Elongation (%) | 25% min |
| Hardness (Rockwell C) | 28 HRC max |
| Density | 7.8 g/cm³ (0.281 lb/in³) |
| Melting Point | 1350°C (2460°F) |
Types of Super Duplex Steel S32760 Round Bars
Aurum Overseas supplies ASTM A276 and ASTM A479 Super Duplex Steel S32760 Round Bars in precision bright and heavy forged conditions for subsea and chemical service.
Super Duplex Steel S32760 Bright Bars
Super Duplex Steel S32760 Forged Bars
Key Advantages of UNS S32760 Round Bars
Enhanced Acid Protection
Intentional additions of copper and tungsten provide resistance to non-oxidizing acids like sulfuric and hydrochloric acid.
Guaranteed High PREN
High levels of chromium, molybdenum, nitrogen, and tungsten deliver a PREN ≥ 42 to prevent crevice corrosion in hot brine.
High Yield & Tensile Rating
Delivers a minimum yield strength of 550 MPa (80 ksi), enabling thinner component wall designs without reducing working pressure ratings.
Resists Stress Corrosion Cracking
The 50/50 ferrite-austenite structure prevents chloride-induced stress corrosion cracking in warm, sour offshore environments.
Resistance to Erosion-Corrosion
Tough alloy composition resists abrasive wear and fluid erosion in high-velocity pumps, agitators, and throttling valves.
Key Applications of Super Duplex Steel S32760 Round Bars
| Industry Sector | Typical Components | Operating Conditions |
|---|---|---|
| Subsea & Offshore Oil | Subsea choke valves, manifold shafts, and riser bolts | High ambient pressure, sour gas (H2S), and aggressive marine brine |
| Chemical Processing | Sulfuric acid pump shafts, agitators, and heat exchanger rods | Hot non-oxidizing acid solutions, chloride salts, and slurry flow |
| Desalination Systems | High-pressure brine pump shafts, impellers, and energy recovery pins | High-velocity concentrated seawater and severe cavitation risks |
| Marine Engineering | Heavy rudder stocks, propeller shafts, and subsea fasteners | Continuous saltwater immersion, cyclic bending fatigue, and erosion |
| Pollution & FGD Systems | Scrubber pump shafts, spray nozzles, and flue gas agitators | Hot wet acid gases, acidic slurries, and abrasive particulate flow |
Quality Testing & Inspection
Every batch of ASTM A479 UNS S32760 Round Bars supplied by Aurum Overseas undergoes strict quality testing:
- Positive Material Identification (PMI): XRF testing verifies correct alloying element concentrations, including tungsten, copper, molybdenum, and chromium.
- Ferrite Phase Analysis: Metallographic measurement per ASTM E562 confirms a balanced 40–50% ferrite structure for optimal toughness.
- Pitting Corrosion Testing: Ferric chloride corrosion testing per ASTM G48 Method A verifies pitting temperature limits.
- Ultrasonic Inspection: Non-destructive testing on forged bars per ASTM A388 verifies complete internal sound quality free of voids.
Global Export Markets
As an established Super Duplex Steel S32760 Round Bars Exporter, Aurum Overseas supplies fully certified UNS S32760 Round 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
S32760 contains deliberate alloy additions of tungsten (0.5–1.0%) and copper (0.5–1.0%), providing enhanced resistance to non-oxidizing acids like sulfuric acid compared to S32750.
ASTM A276 covers hot-finished and cold-finished bars intended for general structural applications, while ASTM A479 covers bars for boilers and pressure vessels.
Zeron 100 is the original brand designation for Super Duplex UNS S32760, recognized for high mechanical strength and corrosion resistance in marine and subsea environments.
All exports are supplied with EN 10204 3.1 Mill Test Certificates detailing heat numbers, chemical analysis, mechanical property test values, PMI reports, and non-destructive testing results.
Contact Aurum Overseas
Aurum Overseas provides fully certified Super Duplex Steel S32760 Round Bars tailored to critical project specifications.
Contact our sales engineering team for stock availability, custom cut lengths, or immediate price quotes: