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Solution 24 February 2026 6 min read

What is the safest alternative to RVS?

If A2/A4 RVS is no longer sufficient, what is? We compare super-austenitic 1.4529, coated steel, and other options on cost, lifespan, and safety.

What is the safest alternative to RVS?

The three serious options on the table

  • Super-austenitic RVS 1.4529 — all-metal, highest corrosion resistance, highest price.
  • PoolFIX Coated — certified steel with a multi-layer pool-resistant coating.
  • Titanium or duplex RVS 1.4462 — niche solutions for highly specific applications.

1.4529: why this is the standard for swimming pools

RVS 1.4529 (also known as UNS N08367 or '6-Mo') contains 6% molybdenum, 25% chromium, and 25% nickel. This composition makes the material virtually immune to pitting, crevice, and stress corrosion in chloride environments up to 60°C — well above any realistic swimming pool temperature.

For the most heavily loaded connections (below the waterline, splash zones, handrails), 1.4529 is the material of choice. We supply standard fasteners (M6-M16) from stock in this material.

PoolFIX Coated: cost-conscious for less critical zones

Above the splash zone, 1.4529 is often overkill. PoolFIX Coated combines high-quality steel with a pool-specific multi-layer coating. For wall and ceiling mountings more than 1 meter from the water surface, this is a reliable and cost-efficient choice.

How to choose per location?

Our AI Material Advisor analyzes a photo of your location and immediately provides the right recommendation — including automatic detection of any desired RAL color for visible mountings.

FREE DOWNLOAD

Free: Pool Safety Whitepaper 2026

NEN 9200, stress corrosion and inspection requirements — combined in one practical PDF.

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