Astm A995 Gr4a [patched] -

Disclaimer: This article is for informational purposes only. Always consult with a licensed materials engineer and reference the latest ASTM A995 specification for critical design decisions.

is a primary industrial specification for cast duplex stainless steel, specifically designed for pressure-containing parts that require a superior balance of strength and corrosion resistance. Often referred to by its UNS designation CD3MN , it serves as the cast equivalent to the widely used 2205 wrought duplex stainless steel . 1. Understanding ASTM A995 Grade 4A astm a995 gr4a