Waspaloy Hex Cap Screws

Waspaloy hex head cap screws are known for their superb high strength at elevated temperatures. Waspaloy is a high performance nickel alloy combined with cobalt, chrome and molybdenum to create it’s unique combination of strength and high temperature stability. Similar to that of Inconel 718 screws, Waspaloy screws exceed the strength and stability of Inconel 718 at elevated temperatures beyond 1400°F. In addition, the oxidation resistance of Waspaloy hex head cap screws make it an ideal materials for high temperature applications like gas turbines engines, and a variety of other aerospace components.

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Zirconium Hex Cap Screws

Commercially pure zirconium hex head cap screws, also known as zirconium 702, are most well-known for their superior corrosion resistance in some of the harshest environments that include: • Hydrochloric Acid• Sulfuric Acid• Formic Acid• Nitric Acid • Acetic Acid It is also a metal that offers industry unique properties. It does not absorb neutrons, making it ideal for use in nuclear power and at low temperatures it is superconductive, making it ideal for super magnets.

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Alloy 330 Hex Cap Screws

Alloy 330 hex head cap screws are specifically designed for high temperature furnace applications such as vacuum furnaces, heat treating and brazing applications. The most prized trait of alloy 330 is its ability perform under cyclic conditions of temperature extremes from heating and cooling; as well as in alternate carburizing and oxidizing atmospheres. An austenitic nickel-chromium-iron-silicon alloy, 330 hex head cap screws also offer industry a low coefficient of expansion, excellent ductility, and high strength. Benefits & Corrosion Resistance Resistance to thermal shock from repeated quenching High level of resistance to oxidation and carburization Ability to handle thermal cycling Provides resistance to scale formation up to about 2000°F Good resistance to nitrogen-containing atmospheres where the oxygen content is low High nickel content of 34-37% provides high resistance to chloride stress corrosion cracking and embrittlement Applications for Alloy 330 Hex Head Cap Screws Alloy 330 hex head screws are often used in furnaces, thermal processing and heat treating applications. Gas turbine components and boiler fixtures used in power generation often use Alloy 330 hex head screws. Because of its resistance to nitrogen rich environments, alloy 330 hex head screws are used extensively for components handling cracked ammonia.

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A286 Hex Cap Screws

A286 screws, also known as Alloy 660 screws are stainless steel alloy which contains iron, nickel and chromium. A286 hex heads are known for their high strength, creep resistance and oxidation resistance at elevated temperatures once age hardened. As a result, A286 hex head screws provide high levels of strength from room temperature up to about 1300°F (700°C). A286 hex head cap screws are also mildly corrosion resistant. While they should not be used for strong acid environments, they provide excellent oxidation resistance up to 1500°F (815°C) in conditions that would typically be found in high temperature exhaust streams.

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Alloy 20 Hex Cap Screws

Also known as Carpenter 20 and 20CB-3, Alloy 20 hex head cap screws offer users a combination of nickel, chromium, molybdenum, and copper which provides good general corrosion resistance. Alloy 20 hex head cap screws are best suited for mid-range corrosion use – better than steel alloys but not at the level of high performance nickel based alloys like Hastelloy C276. Alloy 20 is a nickel alloy that was specifically designed to withstand the harsh environment of hot sulfuric acid but also performs well in a variety of other acids. Alloy 20 hex head cap screws are an ideal choice when you don’t need the corrosion resistance power and price-tag of high performance nickel alloys like Hastelloy C276; but you need something that will give you more protection than 316 stainless steel or even a Super Duplex 2507 stainless steel.

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17-4 PH Hex Cap Screws

17-4 PH hex head cap screws are made from a precipitation hardened stainless steel most known for its exceptional strength and its ability to maintain its mechanical properties to 600°F. Compared to 316 stainless steel, 17-4 PH hex head cap screws yield strength is up over 4 times greater. When compared to Duplex 2205 screws, the yield strength of 17-4 PH can be up to 2-½ times greater. 17-4 hex head cap screws are available in 8 different aged (precipitation hardened) conditions offering a variety of mechanical properties.

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