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Duplex Steel S32205 Threaded Bars Overview
Aurum Overseas is a premier Duplex Steel S32205 Threaded Bars Supplier & Exporter, stocking dual-certified 22% Chromium fasteners engineered to ASTM standards. Our inventory of ASTM A276 UNS S32205 Threaded Bars provides high mechanical strength and reliable protection against aggressive chloride pitting and crevice corrosion.
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Certified ASTM A479 UNS S32205 Threaded Bars deliver a high pitting resistance rating (PREN ≥ 35) with twice the yield strength of standard stainless steels. These durable Duplex Steel S32205 Threaded Rods ensure reliable load-bearing performance across marine, chemical, and offshore systems.
Built for subsea manifolds, offshore risers, reverse osmosis systems, and storage tanks, our Duplex Steel F60 Threaded Rods maintain leak-free seals without stress cracking. 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 S32205 (Duplex 2205 / F60) |
| 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 | SAF |
|---|---|---|---|---|
| Duplex Steel S32205 | ASTM A276 / A479 | 1.4462 | S32205 | 2205 |
Chemical Composition (%)
| Chemical Element | Duplex Steel S32205 (UNS S32205) |
|---|---|
| Chromium (Cr) | 22.00 – 23.00 |
| Nickel (Ni) | 4.50 – 6.50 |
| Molybdenum (Mo) | 3.00 – 3.50 |
| Nitrogen (N) | 0.14 – 0.20 |
| 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 |
| Iron (Fe) | 63.54 min |
Mechanical & Physical Properties
| Property Parameter | Value / Compliance Boundary |
|---|---|
| Density | 7.805 g/cm³ (0.285 lb/in³) |
| Melting Point | 1420 – 1465 °C (2588 – 2669 °F) |
| Tensile Strength (Min) | 655 MPa (95,000 Psi) |
| Yield Strength (0.2% Offset, Min) | 450 MPa (65,000 Psi) |
| Elongation (Min) | 25 % |
| Hardness (Max) | 31 HRC / 293 HBW |
Key Advantages of UNS S32205 Threaded Rods
Double the Strength
Dual-phase microstructural balance delivers twice the load-bearing capacity of standard 316L, letting you use lighter studs without losing joint clamping force.
Resists Saltwater Pitting
Combined Chromium, Molybdenum, and Nitrogen stop severe hole pitting and crevice rust in salty seawater.
No Stress Cracking
Ferritic phase structure protects studs from sudden cracking and breaking in hot marine and brackish chemical environments.
Smooth & Secure Threading
Roll-threaded construction prevents thread stripping and jamming when tightening under heavy assembly loads.
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 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 Duplex Steel S32205 Threaded Bars Exporter, Aurum Overseas supplies fully certified ASTM A276 / A479 UNS S32205 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
It mixes two metal structures (austenite and ferrite) in a 50/50 balance, giving it double the strength of standard 316L stainless steel.
S32205 is a tighter, dual-certified grade with higher minimum Chromium, Molybdenum, and Nitrogen levels, ensuring higher corrosion resistance (PREN 35) compared to standard S31803.
They should not be used in continuous heat above 300 °C (572 °F) to keep the metal from becoming brittle over time.
Yes. Facilities across Germany, the Netherlands, Italy, and the UK rely on Duplex S32205 studs for storage tanks, acid pipelines, and heat exchangers that demand high strength and corrosion protection.
Marine construction and port infrastructure in the USA, Canada, and Mexico use Duplex F60 bars because they stop severe rust and hole pitting in harsh coastal seawater.
Contact Aurum Overseas
Contact Aurum Overseas, a trusted Duplex Steel S32205 Threaded Bars Supplier & Exporter, for certified high-temperature alloy threaded rods, custom length sawing, and fast international delivery.