Hastelloy B2 Flanges

A Flange is a forged component used to connect pipes, valves, pumps, and other equipment to form a piping system. Flanges provide easy access for cleaning, inspection, or modification and are generally secured using bolts and gaskets. When forged from Hastelloy B2 (UNS N10665), these critical components are designed for service in the most aggressive reducing chemical environments. The high nickel-molybdenum content of the alloy ensures virtual immunity to non-oxidizing acids, including concentrated hydrochloric acid (HCl) and sulfuric acid (Hâ‚‚SOâ‚„), even at high temperatures. This is paramount for preventing leakage and maintaining joint integrity in highly corrosive chemical process lines. Zeron Fastners is a trusted manufacturer and supplier of these specialized nickel alloy flanges, offering various types (Weld Neck, Blind, Slip-On) to guarantee safe and reliable piping connections.

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Hastelloy B2 Flanges

Hastelloy B2 Chemical Composition

Element Composition (%)
Nickel (Ni) Balance
Molybdenum (Mo) 26.0 to 30.0
Iron (Fe) 2.0 max
Chromium (Cr) 1.0 max
Cobalt (Co) 1.0 max
Carbon (C) 0.02 max

Hastelloy B2 Mechanical Properties

Property Value (Minimum)
Tensile Strength, min 690 MPa (100,000 psi)
Yield Strength (0.2% Offset), min 350 MPa (51,000 psi)
Elongation, min 40%
Hardness (Rockwell B) 90 max
Density 9.24 g/cm3 (0.334 lb/in3)

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