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Inconel 945 is a nickel-iron-chromium alloy that is primarily used in applications where strength, corrosion resistance, and heat resistance are of paramount importance. It has excellent mechanical properties and is easily machined, welded, and heat treated. This blog post will provide an overview of all the properties and uses of grade 945 so you can better understand how this alloy might be useful for your own projects.
Inconel 945 Composition
UNS N09945 contains iron, nickel, chromium, molybdenum, titanium, copper, and aluminum. Its chemical composition is as follows: Iron (Fe): 50%, Nickel (Ni): 28-33%, Chromium (Cr): 17-19%, Molybdenum (Mo): 3.7-4.3%, Titanium (Ti): 0.8-1.2%, Copper (Cu): 0.7-1.2% Aluminum (Al): 0.2%.
Element | Content (%) |
Nickel, Ni | 45-55 |
Chromium, Cr | 19.5-23 |
Molybdenum, Mo | 03-Apr |
Niobium, Nb | 2.5-4.5 |
Copper, Cu | 1.5-3 |
Manganese, Mn | 1 |
Silicon, Si | 0.5 |
Titanium, Ti | 0.5-2.5 |
Phosphorus, P | 0.01-0.7 |
Carbon, C | 0.005-0.04 |
Inconel 945 Mechanical Properties
UNS N09945 has good mechanical properties at room temperature and high temperatures due to its unique composition of metals, providing it with strength and durability even in extreme temperatures. The following are the mechanical properties of Inconel 945 at room temperature: Tensile Strength – 830 MPa; Yield Strength – 690 MPa; Elongation – 28%; Hardness – 205 HBW; Density – 7.89 g/cm³; Modulus of Elasticity – 200 GPa; Poisson’s Ratio – 0.3; Shear Modulus – 75 GPa . These properties make it ideal for components that require high strength and corrosion resistance in a wide range of temperatures, from cryogenic to elevated temperatures up to 1000°C.
Inconel 945 Physical Properties
The physical properties of Inconel alloy 945 enable it to resist corrosion even in harsh environments such as those found in oil refineries or chemical plants where exposure to aggressive chemicals or acidic compounds can cause severe damage to other materials such as carbon steel or stainless steel alloys. The physical properties also enable it to maintain its ductility and malleability even when exposed to elevated temperatures making it well suited for use in high temperature applications such as furnace components or exhaust systems that need to withstand constant heat exposure without losing their structural integrity over time.