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Beyond Stainless Steel: Proven Reliability for Data Centre Liquid Cooling

Empowering Critical Infrastructure with Tested Material Innovation

DateJune 20, 2025
Corrosion Data Centre

Corrosion resistance testing for IMI’s AMETAL® brass alloys in data centre liquid cooling systems

Partnering with third-party RISE Research Institutes of Sweden, IMI validated that its proprietary AMETAL® brass alloys match or exceed stainless steel in durability under thermal and chemical stress using glycol-based heat transfer fuilds (PG25-class HTFs), such as like Dowfrost LC25 and Dynalene LC-PG, some of the most used HTFs in Data Centre.

Additionally, the test design was aligned with ASTM D8040, a methodology supported by ASHRAE and OCP, two of the most authoritative organisations in the data centre industry.

Key Results

  • AMETAL® brass alloys: Corrosion rates <8 μm/year at 88 °C, <3 μm/year at 4 °C (diluted HTF).
     
  • Industry standards: IMI’s AMETAL® meets corrosion thresholds (≤11.7 μm/year for brass, ≤5.6 μm/year for copper alloys), defined by ASHRAE and OCP.

 

Why It Matters

In mission-critical systems, AMETAL® delivers:

  • Corrosion rates exceeding industry requirements
     
  • Strong HTFs compatibility
     
  • Provide a viable alternative to stainless steel.  

 

IMI’s Solutions for Data Centres using AMETAL®:

  • TA-Smart, TA-Modulator, STAD: Balancing and control valves for optimised efficiency;
     
  • Simply Vento: Patented degassing technology to help maximise system reliability and safeguard critical components.

 

Future-Ready

IMI’s focus on advanced material development and fluid compatibility testing underscores its dedication to creating resilient, future-ready HVAC systems, suitable for critical applications such as Data Centres.