Nickel 200 vs 201: Carbon Content & Temperature Limits
Nickel 200 (UNS N02200) and Nickel 201 (UNS N02201) belong to the same family of commercially pure nickel, exhibiting nearly identical excellent corrosion resistance and mechanical properties under ambient conditions. However, a subtle difference in one key parameter—carbon content—completely defines their boundaries in high-temperature applications. This article will compare their composition, performance, and applicable standards to reveal why 315°C (600°F) is the decisive temperature threshold for selecting between the two, providing precise selection criteria for different operating conditions.











