Why Do Stainless Steel Shower Drains Clog and Corrode? Reference Standard: ASME A112.18.2/CSA B125.2 (Plumbing waste fittings) and ASTM G48 (Pitting and Crevice Corrosion Resistance) Short Answer Bathroom shower drain failures are primarily driven by the collapse of the chromium-rich passivation layer under localized chloride diffusion, leading to microscopic pitting. Simultaneously, surface topography gradients allow … Read more
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