Inconel bolts are a nickel alloy fastener that are known for their use in high temperature applications that also require high strength. Many grades are also used for their excellent level of corrosion resistance in harsh chemical environments. This brief newsletter highlights the unique attributes of each Inconel bolt grade. |
Inconel 600 Bolts
High Temperature Resistance
• Ideal for oxidation and carburization resistance at high temperatures
• Good resistance to chlorine media such as dry chlorine, chloride-ion stress corrosion cracking and hydrogen chloride gases at moderate temperatures.
• Excellent for furnace components and chemical processing equipment.
Inconel 601
Excellent Mechanical Properties
• Similar oxidation and carburization resistance to grade 600 with improved high strength and mechanical toughness.
• 107 ksi tensile strength compared to 93ksi of grade 600.
• Good creep and rupture strength, as well as metallurgical stability in heat.
• Ability to stave off strain at high temperatures.
Inconel 625
Corrosion Resistance
• Best known for its high temperature corrosion resistance.
• Often used in chemical processing, nuclear power plants and oil & gas.
• Good resistance to harsh chemicals: sulfuric, hydrofluoric and phosphoric acids.
• Corrosion resistance is often comparable to that of Hastelloy C276.
Inconel 718
Superior Strength & Corrosion Resistance
• FAR exceeds all Inconel alloys and most materials available to industry in terms of high strength with the exception of a few alloys like MP35N.
• Extreme high strength with a min of 185ksi UTS and 150ksi yield strength per ASTM B637. A work hardened version that has min of 220 ksi UTS.
• Ideal for high strength, corrosive applications such as gas turbine engines, down-hole oil & gas and aerospace.