Cobalt Alloy Sheet 330

Cobalt Alloy Sheet 330 (commonly referred to as Alloy 330 or UNS N08330) is a nickel-iron-chromium alloy formulated to withstand severe thermal cycling and aggressive, high-temperature corrosive environments. The alloy's strength and exceptional resistance to oxidation and carburization at temperatures up to 2000°F (1093°C) are critical to its widespread use. Zeron Fasteners supplies quality Alloy 330 sheets to meet the stringent demands of industries like petrochemical processing, heat-treating, and power generation. The sheets are primarily used to manufacture components such as furnace linings, muffles, retorts, and heat exchangers where stability under thermal stress is essential.

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Cobalt Alloy Sheet 330

Cobalt Alloy Sheet 330 Chemical Composition

Element Composition
Nickel (Ni) 34.0 - 37.0
Chromium (Cr) 17.0 - 20.0
Iron (Fe) Balance
Silicon (Si) 0.75 - 1.50
Carbon (C) 0.04 - 0.08
Manganese (Mn) 1.50 maximum
Sulfur (S) 0.03 maximum
Phosphorus (P) 0.03 maximum

Cobalt Alloy Sheet 330 Mechanical Properties

Property Minimum Value
Tensile Strength, minimum 75 ksi
Yield Strength (0.2% Offset), minimum 30 ksi
Elongation in 2 in., minimum 30 %
Hardness, maximum 95 HRB

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