Nickel 200 vs. Nickel 201: A Complete Guide to Choosing the Right Pure Nickel Alloy
When you need the corrosion resistance, conductivity, and formability of commercially pure nickel, two grades immediately come to mind: Nickel 200 and Nickel 201 . At first glance, they look nearly identical. Both contain at least 99% nickel, with only trace amounts of iron, silver, manganese, copper, carbon, and sulfur. But a small difference in carbon content leads to a major performance divide — especially when temperatures rise. In this guide, we’ll break down: What makes Nickel 200 and Nickel 201 different Why carbon content matters above 315°C How to choose the right grade for your application Cost, availability, and industry standards Let’s dive in. The Core Difference: Carbon Content The only significant chemical difference between Nickel 200 and Nickel 201 is carbon. Grade Maximum Carbon Content Nickel 200 0.15% Nickel 201 0.02% That’s just 0.13% — but it changes everything at high temperatures. Why Carbon Matters: The Embrittlement Pro...