Introduction
When it comes to glass pool fencing, few materials have revolutionized the market like 2205 duplex stainless steel. As property owners across Australia demand higher corrosion resistance and cleaner aesthetics, 2205 has quickly become the gold standard — replacing 316 and 304 grades that dominated the industry for decades.
This guide takes you deep into what makes 2205 different, how it performs under Australia’s extreme weather, and why investing in 2205 spigots ensures your pool fencing remains pristine and secure for years to come.
1. What Is 2205 Duplex Stainless Steel?
2205 stainless steel is a duplex alloy, meaning it combines both austenitic and ferritic microstructures. This unique balance delivers twice the strength of conventional stainless steel while improving resistance to stress corrosion cracking and pitting.
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Composition: ~22% chromium, 5% nickel, 3% molybdenum
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Tensile strength: ~620 MPa (compared to 316’s ~515 MPa)
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Corrosion resistance: 3–4 times higher in saline conditions
For poolside environments constantly exposed to chlorides, humidity, and salt air, these numbers aren’t just statistics — they mean decades of maintenance-free performance.
2. The Science Behind Its Corrosion Resistance
Unlike 316, which can form micro-pits when exposed to chlorides, 2205’s duplex nature allows chromium and molybdenum atoms to self-heal passive layers. These atomic films rebuild instantly when scratched, preventing deep corrosion.
Moreover, its ferritic phase resists stress-corrosion cracking — a problem often seen in glass fencing hardware exposed to both sun and salt spray.
3. Designed for the Australian Outdoors
Australia’s environment pushes outdoor materials to their limit — salt air in Perth, tropical storms in Cairns, and UV exposure in Sydney.
2205 excels in these conditions because:
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It doesn’t develop tea staining near coastal areas.
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It retains its finish longer without frequent polishing.
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It endures heat expansion without warping or loosening.
That’s why architects specify 2205 in coastal resorts, beachfront homes, and high-end pool renovations across Australia.
4. Comparing 2205 with 316 and 304 Stainless Steel
| Feature | 304 | 316 | 2205 |
|---|---|---|---|
| Chromium (%) | 18 | 17 | 22 |
| Nickel (%) | 8 | 10 | 5 |
| Molybdenum (%) | — | 2 | 3 |
| Corrosion Resistance | Moderate | High | Superior |
| Strength | Standard | Good | Excellent |
The key takeaway: while 316 works well inland, 2205 dominates coastal environments, where chloride exposure quickly defeats weaker alloys.
5. Applications of 2205 Spigots
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Residential pools: Long-term shine and stability without maintenance.
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Commercial resorts: High exposure to salt, humidity, and tourists.
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Harbour decks: Constant moisture, mechanical stress, and temperature shifts.
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Public facilities: Aesthetic consistency and safety compliance.
6. The Future of Spigot Design
As sustainability becomes central to construction, 2205’s longevity reduces waste and replacement costs. Many designers now pair it with low-iron glass and minimalist bases to achieve seamless transparency.
At Spigot Factory, our 2205 range includes both insulated models for condensation control and Madrid designs for architectural appeal.
7. How to Maintain 2205 Spigots
While 2205 is nearly maintenance-free, occasional rinsing keeps it flawless:
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Rinse monthly with fresh water if you live near the coast.
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Avoid acidic cleaners — mild soap is enough.
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Wipe dry with a soft microfiber cloth.
The Critical Role of Spigots: 2025’s Must-Have Component
Final Tips for a 2025-Ready Pool Fence
The future of glass pool fencing belongs to 2205 stainless steel — a material that blends engineering brilliance with enduring beauty. If you’re building or upgrading your pool area, 2205 spigots are your smartest long-term investment.
