Pipe Thickness Calculator & Optimizer
Duplex & Super Duplex Steel : ASME B31.3
Designed & Developed by Atul Singla
Pipe Thickness for Duplex & Super Duplex Steel is an essential design parameter in industries where high strength and corrosion resistance are non-negotiable—such as offshore, subsea, and chemical processing plants. These materials (like UNS S31803 and S32750) offer higher yield strength than austenitic steels, which can lead to thinner wall selection—but only when allowed by design codes. In this article, we’ll explore how ASME B31.3 and ASME B36.19 standards guide thickness selection, including considerations for pressure, temperature, and corrosion allowance.