Knowledge Base › Dezincification (DZR) & Corrosion Resistance Guide
CORROSION & METALLURGY GUIDE
🧪 ISO 6509-1 DZR Corrosion Resistance

Dezincification (DZR) & Corrosion Resistance Guide

Technical reference explaining dezincification in brass alloys, ISO 6509-1 test protocols, arsenic additions, and DZR lead-free silicon brasses.

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1. Understanding Dezincification Corrosion (DZR)

Dezincification is a form of selective leaching where zinc is selectively dissolved out of brass alloys containing more than 15% Zn when exposed to stagnant or hot acidic potable water, leaving behind a weak, porous copper framework.

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