Incoloy 825 vs 316L Stainless Steel: When to Upgrade for Corrosion Resistance (UNS N08825) Supplier | Bar, Tube, Plate - Hangbo Alloy

Introduction: The Corrosion Upgrade Decision

Shanghai Hangbo Alloy Group Co., Ltd. is an ISO 9001:2015 certified manufacturer supplying both Incoloy 825 (UNS N08825) and 316L stainless steel in round bar, seamless tube, plate, and forging forms. We help engineers worldwide determine whether 316L is sufficient or if the upgrade to Incoloy 825 is justified based on the specific corrosive environment.

Quick Answer: When Should You Upgrade from 316L to Incoloy 825? Upgrade to Incoloy 825 when any of these conditions exist: (1) chloride levels exceed 100-200 ppm at elevated temperatures, (2) the environment contains sulfuric or phosphoric acid, (3) stress-corrosion cracking (SCC) is a known failure mode in your application, (4) operating temperature exceeds 60°C in chloride-containing environments, or (5) you are experiencing pitting or crevice corrosion with 316L.

Chemical Composition: What Makes Incoloy 825 Superior