Table of Contents
- Duplex Steel S32205 Round Bars Overview
- Technical Specifications
- Mechanical Properties & Chemical Composition
- Types of Duplex Steel S32205 Round Bars
- Key Advantages of UNS S32205 Round Bars
- Key Applications of Duplex Steel S32205 Round Bars
- Quality Testing & Inspection
- Global Export Markets
- Frequently Asked Questions
- Contact Aurum Overseas
Duplex Steel S32205 Round Bars Supplier & Exporter
Aurum Overseas supplies certified nitrogen-enhanced dual-phase stainless steel bars engineered for high yield strength and localized corrosion resistance. As a leading Duplex Steel S32205 Round Bars Supplier and Exporter, we stock premium inventory for chemical processing, subsea oil production, and desalination plants.
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We specialize in precision ASTM A276 UNS S32205 Round Bars and ASTM A479 UNS S32205 Round Bars tailored to prevent intermetallic phase precipitation. Our stock features precision ground bright bars for automated machining along with heavy Duplex Steel F60 Round Bars forged for load-bearing hardware.
We export these specialized high-nitrogen dual-phase alloy 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 | Duplex Steel S32205 (F60) |
|---|---|
| Material Designation | Duplex 2205 / F60 / UNS S32205 |
| UNS Number | UNS S32205 |
| Manufacturing Standards | ASTM A276 UNS S32205 Round Bars, ASTM A479 UNS S32205 Round Bars, EN 10088-3, NACE MR0175 |
| 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 & Rapid Quenched |
Mechanical Properties & Chemical Composition
Equivalent Grades of A276 Duplex S32205 Bars
| Standard | UNS | Werkstoff Nr. |
|---|---|---|
| Duplex S32205 | S32205 | 1.4462 |
Chemical Composition of UNS S32205 Round Bars
| Chemical Element | Composition Range (%) |
|---|---|
| Carbon (C) | 0.030 max |
| Manganese (Mn) | 2.00 max |
| Silicon (Si) | 1.00 max |
| Phosphorus (P) | 0.030 max |
| Sulfur (S) | 0.020 max |
| Chromium (Cr) | 21.0 – 23.0 |
| Molybdenum (Mo) | 2.50 – 3.50 |
| Nickel (Ni) | 4.50 – 6.50 |
| Nitrogen (N) | 0.14 – 0.20 |
| Iron (Fe) | 63.54 min |
Mechanical Properties of UNS S32205 Round Bars
| Property | Value |
|---|---|
| Ultimate Tensile Strength | 655 MPa (95,000 psi) min |
| Yield Strength (0.2% Offset) | 450 MPa (65,000 psi) min |
| Elongation (%) | 25% min |
| Hardness (Brinell) | 290 HB max |
| Density | 7.805 g/cm³ (0.285 lb/in³) |
| Melting Point | 1420°C – 1465°C (2588°F – 2669°F) |
Types of Duplex Steel S32205 Round Bars
Aurum Overseas supplies ASTM A276 and ASTM A479 Duplex Steel S32205 Round Bars in precision bright and heavy forged conditions for chemical, offshore, and marine service.
Duplex Steel S32205 Bright Bars
Duplex Steel S32205 Forged Bars
Key Advantages of UNS S32205 Round Bars
Nitrogen-Enhanced Strength
Elevated nitrogen levels stabilize the austenitic phase while increasing yield strength beyond standard duplex compositions.
Enhanced PREN Performance
Delivers a Pitting Resistance Equivalent Number (PREN) ≥ 34, providing resistance against severe pitting in warm chloride solutions.
Optimized Thermal Expansion
Combines lower thermal expansion coefficients with higher thermal conductivity than conventional austenitic stainless steels to reduce thermal fatigue.
Superior Weld Heat-Affected Zone (HAZ) Integrity
Tightly controlled chemistry resists chromium nitride precipitation in the HAZ during field welding operations.
Resistance to Crevice Attack
Balanced chromium, molybdenum, and nitrogen chemistry prevents localized crevice corrosion beneath gaskets and mechanical joints.
Key Applications of Duplex Steel S32205 Round Bars
| Industry Sector | Typical Components | Operating Conditions |
|---|---|---|
| Chemical Processing | Reactor agitator shafts, distillation column internals, and acid pumps | Concentrated organic and inorganic acids with chloride contamination |
| Oil & Gas Subsea | Subsea manifold shafts, wellhead components, and flowline valves | Sour gas (H2S) exposure, high ambient pressure, and aggressive brine |
| Marine & Defense | High-load propeller shafts, rudder stocks, and underwater fasteners | Continuous exposure to seawater, cavitation erosion, and cyclic bending |
| Pollution Control | Flue gas desulfurization (FGD) absorber shafts and slurry mixers | Highly acidic slurry, wet chlorine gas, and abrasive particulate flow |
| Industrial Water Treatment | Reverse osmosis high-pressure pump shafts and valve manifolds | Concentrated brine, high mechanical operating pressure, and fluid erosion |
Quality Testing & Inspection
Every batch of UNS S32205 Round Bars supplied by Aurum Overseas undergoes complete quality verification:
- Positive Material Identification (PMI): XRF analysis verifies exact concentrations of chromium, molybdenum, nickel, and nitrogen elements.
- Ferrite Content Measurement: Magnetic and metallographic testing per ASTM E562 confirms a balanced 40–50% ferrite range to guarantee structural toughness.
- Intermetallic Phase Evaluation: Microstructural inspection per ASTM A923 Method B or C verifies freedom from detrimental sigma and chi phases.
- Ultrasonic Inspection: NDT testing on forged bars per ASTM A388 ensures complete internal integrity free of voids or inclusions.
Global Export Markets
As an established Duplex Steel S32205 Round Bar Exporter, Aurum Overseas supplies fully certified UNS S32205 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
UNS S32205 features tighter minimum boundaries for chromium (22.0% min), molybdenum (3.0% min), and nitrogen (0.14% min), delivering higher pitting resistance and mechanical properties than basic UNS S31803.
ASTM A276 covers hot-finished and cold-finished bars intended for general structural applications, whereas ASTM A479 covers bars designated for boilers and high-pressure vessels.
F60 is the forge specification designation under ASTM A182 for UNS S32205 material, ensuring high structural integrity and grain refinement in forged products.
Nitrogen increases yield strength through solid solution strengthening, improves pitting and crevice corrosion resistance, and restores the austenite balance in weld heat-affected zones.
All exports are supplied with EN 10204 3.1 Mill Test Certificates detailing heat numbers, full chemical analysis, mechanical property test results, and non-destructive examination compliance.
Contact Aurum Overseas
Aurum Overseas provides fully certified Duplex Steel S32205 Round Bars tailored to critical project specifications.
Contact our sales engineering team for availability, customized sizes, or immediate price quotes: