Hastelloy© B, B2, B3, C, C22 and C276 valves and their use.
The patent holder to Hastelloy©, Haynes Corporation, comments that Hastelloy© can be considered to have superceded both Inconel© and Incoloy© for most petrochemical processes. Hastelloy© is suitable for extreme temperatures and is highly resistant to crevice corrosion. The alloy comes in many grades, as reflected in the table below.
Hastelloy© material specification and equivalents
|Cast designation||A494 N7M, CW12MW, CW6M, CX2MW|
|ASTM specification||B564 and B622|
|European (DIN) Werkstoff number||2.4617, 2.4600, 2.4602, 2.4819, 2.4610|
|Unified Numbering System (UNS)||N10276, N10665, N06022 and S33205|
|Other designations||Hastelloy© B, B2, B3, C, C22 and C276|