About this guide
These recommendations reflect industry-standard practice for valve material selection across common process services. They are drawn from manufacturer specifications, NACE/ISO standards, corrosion-engineering references (NACE TM, Crane TP-410, Perry's Chemical Engineers' Handbook), and decades of severe-service field experience.
Material compatibility depends on concentration, temperature, contaminants, velocity, and other factors not captured in a summary chart. Use this guide for initial selection; verify with your corrosion engineer, current vendor data, and applicable codes before final spec.
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