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Formula: Co 42.5/Cr 20/Ni 13/Fe/W/Mo/Mn
Form: Coil
Material: Cobalt/Chromium/Nickel (Havar®)
Commodity: Alloys
Temper: As Rolled
Havar® Coil is a cobalt-based alloy supplied in coiled sheet form, valued for its exceptional mechanical strength, corrosion resistance, and stability under radiation and thermal stress. Its coil format ensures flexible processing into windows, barriers, and protective layers across demanding industrial and scientific applications. Havar® is widely used in particle accelerators, medical isotope production systems, and high-pressure environments. Technologies benefiting from Havar® coils include thin foil target windows in cyclotron facilities, where they reliably separate high-pressure target gases from accelerator vacuum systems while withstanding intense particle bombardment; positron annihilation spectroscopy and transmission electron microscopy studies, which use Havar® as a benchmark material for understanding irradiation-induced defects, lattice structure, and dislocation densities; and proton beam stopping power experiments, where Havar® is tested against protons and alpha particles to refine theoretical models of energy loss in complex alloys. In research, Havar® coils provide critical material platforms for studying radiation effects, fatigue resistance, and defect behavior under high stress. By uniting structural durability, radiation resilience, and adaptability, Havar® Coil plays a central role in advancing nuclear physics, accelerator science, and medical technology.

Health hazard/Hazardous to the ozone layer

Serious health hazard

each

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Tolerances

Coil
Thickness <0.01mm ±25%
Thickness 0.01mm - 0.05mm ±15%
Thickness >0.05mm ±10%

Material Properties for Alloys

Mechanical Properties
Element Value
Elongation at break( % ) 1
Modulus of elasticity( GPa ) 200-210
Tensile strength( MPa ) 960-970
Electrical Properties
Element Value
Electrical resistivity( µOhmcm ) 92
Temperature coefficient( K⁻¹ ) -
Thermal Properties
Element Value
Melting point( C ) 1480
Thermal conductivity( W m⁻¹ K⁻¹ ) 13@23°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 12.5@0-50°C
Physical Properties
Element Value
Density( gcm⁻³ ) 8.3

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