Hastelloy C276 Stud Bolts

Hastelloy C276 Stud Bolts are high-performance fasteners used primarily to join flanged connections in piping systems and pressure vessels. Unlike regular bolts, a stud bolt is usually a bar threaded for its entire length or threaded at both ends, and it is typically installed with two nuts and two washers. The material, **Hastelloy C276**, is a premier nickel-molybdenum-chromium alloy renowned for its exceptional resistance to corrosive chemicals, including oxidizing acids and reducing environments, wet chlorine, and seawater. This makes C276 stud bolts indispensable in highly critical services within the chemical processing, oil & gas, and pollution control industries. Zeron Fasteners manufactures and supplies precise, high-strength nickel alloy stud bolts designed for maximum integrity and longevity in the harshest conditions.

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Hastelloy C276 Stud Bolts

Chemical Composition (Hastelloy C276 Stud Bolts)

Element Composition (%)
Nickel (Ni) Balance
Molybdenum (Mo) 15.0 to 17.0
Chromium (Cr) 14.5 to 16.5
Iron (Fe) 4.0 to 7.0
Tungsten (W) 3.0 to 4.5
Cobalt (Co) 2.5 max
Manganese (Mn) 1.0 max
Carbon (C) 0.01 max

Mechanical Properties (Hastelloy C276 Stud Bolts)

Property Value (Minimum)
Tensile Strength, min 690 MPa (100 ksi)
Yield Strength (0.2% Offset), min 283 MPa (41 ksi)
Elongation, min 40%
Hardness (Rockwell B), max 100 HRB
Modulus of Elasticity (E) 205 GPa (29,700 ksi)

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