Hastelloy C276 Weld Neck Flanges

The Hastelloy C276 Weld Neck Flange is the most preferred type of flange for critical and severe service applications involving high pressure, sub-zero, or elevated temperatures, particularly in corrosive environments. As a specialty product from Zeron Fasteners, these flanges are characterized by a long tapered hub that is butt-welded to the pipe, providing a superior joint integrity that minimizes turbulence and stress concentration at the flange-to-pipe connection. The nickel-chromium-molybdenum alloy composition of Hastelloy C276 ensures that the flange maintains exceptional resistance to localized corrosion, stress corrosion cracking, and attack by aggressive chemicals like ferric and cupric chlorides. We manufacture these flanges in all pressure classes according to ASME B16.5 standards, making them indispensable for Chemical Processing and Oil & Gas pipeline segments.

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