| \n<\/th>\n | \n Inconel 718<\/p>\n<\/th>\n | \n Inconel 625<\/p>\n<\/th>\n<\/tr>\n | |||||||||||||||||||||||||||||||||||||||||||||
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| \n Chemical Composition Nickel (50-55%), Nickel (58%), Density<\/strong><\/p>\n<\/td>\n 8.19 g\/cm\u00b3<\/p>\n<\/td>\n 8.44 g\/cm\u00b3<\/p>\n<\/td>\n<\/tr>\n Ultimate Tensile Strength<\/strong><\/p>\n<\/td>\n 1,250 MPa<\/p>\n<\/td>\n 930 MPa<\/p>\n<\/td>\n<\/tr>\n Yield Strength<\/strong><\/p>\n<\/td>\n 1,035 MPa<\/p>\n<\/td>\n 480 MPa<\/p>\n<\/td>\n<\/tr>\n Fatigue Strength<\/strong><\/p>\n<\/td>\n 620 MPa<\/p>\n<\/td>\n 400 MPa<\/p>\n<\/td>\n<\/tr>\n Hardness<\/strong><\/p>\n<\/td>\n Rockwell C (RC) 30-40<\/p>\n<\/td>\n Rockwell C (RC) 20-30<\/p>\n<\/td>\n<\/tr>\n Melting Point<\/strong><\/p>\n<\/td>\n ~1,330\u00b0C (2,426\u00b0F)<\/p>\n<\/td>\n ~1,350\u00b0C (2,462\u00b0F)<\/p>\n<\/td>\n<\/tr>\n Operating Temperature<\/strong><\/p>\n<\/td>\n Up to 700\u00b0C (1,300\u00b0F)<\/p>\n<\/td>\n Up to 980\u00b0C (1,800\u00b0F)<\/p>\n<\/td>\n<\/tr>\n Corrosion Resistance<\/strong><\/p>\n<\/td>\n Excellent, especially against oxidation and stress-corrosion<\/p>\n<\/td>\n Excellent, especially in harsh environments like saltwater<\/p>\n<\/td>\n<\/tr>\n Applications<\/strong><\/p>\n<\/td>\n Aerospace (turbine blades, engine parts), energy, automotive<\/p>\n<\/td>\n Marine (saltwater applications), chemical processing, aerospace<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n Beyond Inconel 718 and 625, additional alloys like Inconel 600, Inconel 601, and Inconel 825 offer specific benefits for 3D printing.<\/p>\n Inconel 600 is known for its excellent oxidation resistance and is frequently used in chemical processing equipment.<\/p>\n<\/li>\n Inconel 601 offers enhanced resistance to oxidation and is used in high-temperature applications such as furnace components.<\/p>\n<\/li>\n Inconel 825 stands out for its high resistance to both corrosion and oxidation, making it suitable for handling acids and other aggressive chemicals.<\/p>\n<\/li>\n<\/ul>\n Particle Size of Inconel Alloys<\/strong><\/p>\n The common particle size of metal powder varies depending on specific 3D printing technologies and application requirements. Generally, the particle size for metal powder used in 3D printing ranges from 15 to 150 microns (\u03bcm). Below are some common particle size ranges.Effects of Different Particle Sizes<\/p>\n Inconel is usually processed into metal powder for 3D printing. The particle size of the powder has a big impact on Inconel\u2019s physical properties, especially during 3D printing.<\/p>\n Particle Size Range (micron\/\u00b5m)<\/p>\n<\/th>\n Application and Characteristics<\/p>\n<\/th>\n<\/tr>\n 15\u201345 \u00b5m<\/strong><\/p>\n<\/td>\n Suitable for high-precision 3D printing, such as Selective Laser Melting (SLM) and Electron Beam Melting (EBM); 45\u201375 \u00b5m<\/strong><\/p>\n<\/td>\n Commonly used in general industrial 3D printing, with a good balance for Selective Laser Melting (SLM) and Direct Metal Laser Sintering (DMLS).<\/p>\n<\/td>\n<\/tr>\n 75\u2013100 \u00b5m<\/strong><\/p>\n<\/td>\n Suitable for larger parts with lower precision requirements; 100\u2013150 \u00b5m<\/strong><\/p>\n<\/td>\n Primarily for large parts manufacturing and repair; Generally, as the powder particle size increases:<\/p>\n The melting efficiency, part density, surface smoothness of printed layers, and mechanical properties tend to decrease.<\/p>\n<\/li>\n Flowability, powder spreading efficiency, oxidation resistance, and material stability improve.<\/p>\n<\/li>\n<\/ul>\n The followings explain how it impacts.<\/strong><\/p>\n Melting Efficiency & Density<\/strong><\/p>\n Small Particles: Have a larger surface area, absorb heat easily, and melt uniformly. This helps create a dense, consistent final product with fewer voids and stronger corrosion resistance.<\/p>\n<\/li>\n Large Particles: Don\u2019t melt as thoroughly, which can lead to pores or uneven areas, lowering the density and strength of the part. \u2800<\/p>\n<\/li>\n<\/ul>\n Surface Smoothness of Layers<\/strong><\/p>\n Small Particles: Produce a smoother, more even surface and better print resolution. This is especially useful for high-precision parts, as they spread evenly across each layer.<\/p>\n<\/li>\n Large Particles: May not achieve the same smooth finish, making them less ideal for parts that require detailed surfaces. \u2800<\/p>\n<\/li>\n<\/ul>\n Flowability & Powder Spreading<\/strong><\/p>\n Small Particles: Can sometimes clump together, disrupting flow and slowing down printing. They\u2019re great for detail but can be tricky to spread evenly.<\/p>\n<\/li>\n Large Particles: Flow smoothly, which speeds up the spreading process. However, they may sacrifice detail and precision. \u2800<\/p>\n<\/li>\n<\/ul>\n Oxidation & Stability<\/strong><\/p>\n Small Particles: With their larger surface area, they\u2019re more prone to oxidation, which can impact Inconel\u2019s corrosion resistance and stability. To prevent this, they should be stored in an inert gas environment.<\/p>\n<\/li>\n Large Particles: Are less likely to oxidize, making them more stable for storage and use. \u2800<\/p>\n<\/li>\n<\/ul>\n Mechanical Strength<\/strong><\/p>\n Small Particles: Create a dense structure, which boosts strength and toughness, making the final part more durable.<\/p>\n<\/li>\n Large Particles: Can lead to tiny defects, reducing tensile strength and making the part more susceptible to wear over time.<\/p>\n<\/li>\n<\/ul>\n Inconel vs Titanium<\/strong><\/p>\n Inconel and titanium are strong and heat-resistant but suit different needs in 3D printing.<\/p>\n Inconel <\/strong>can handle extremely high temperatures (up to 980\u00b0C), making it ideal for aerospace and energy applications where parts face intense heat and corrosion.<\/p>\n<\/li>\n Titanium<\/strong>, while also strong, is lighter and used in areas needing weight reduction, like medical implants and automotive parts. When choosing Inconel vs titanium, Inconel works best for extreme temperatures, while titanium is preferred for lightweight strength.<\/p>\n<\/li>\n<\/ul>\n Inconel vs Stainless Steel<\/strong><\/p>\n Inconel offers greater corrosion and heat resistance than stainless steel.<\/p>\n Inconel <\/strong>performs well in extreme environments, like chemical plants and aerospace, due to its high resistance to oxidation and stress.<\/p>\n<\/li>\n Stainless steel<\/strong> is more cost-effective for general use where moderate corrosion resistance suffices. In high-stress, high-temperature scenarios, Inconel vs stainless steel comparisons usually favor Inconel.<\/p>\n<\/li>\n<\/ul>\n Inconel vs Hastelloy<\/strong><\/p>\n Hastelloy and Inconel both resist heat and corrosion. Choosing between them depends on the environment: Hastelloy for heavy corrosion, Inconel for intense heat.<\/p>\n Inconel excels in high-heat settings such as jet engines.<\/p>\n<\/li>\n Hastelloy is best for highly corrosive environments like chemical processin.<\/p>\n<\/li>\n<\/ul>\n What\u2019s worth noting is that inconel, mainly made of rare, costly nickel and chromium, is pricier than other 3D printing metals. While ideal for aerospace due to its high quality, more affordable metals like stainless steel or aluminum are often better for everyday uses like automotive and electronics.<\/p>\n Want to know more about 3d printing using stainless steel, aluminum, or other cost-effective metals, feel free to contact Unionfab<\/a>, China’s largest 3D printing manufacturing company. <\/p>\n With over 20+ years’ experience, 1000+ industrial 3D printers and the ISO 9001 certification<\/strong>, we deliver cost-effective and quality services that are 70% cheaper than counterparts<\/strong> and ensure rapid air shipments in 3-5 days <\/strong>via DHL Express and FedEx.<\/p>\n The most common 3D printing technologies for Inconel are powder bed fusion (PBF, mainly SLM\/DMLS) and direct energy deposition (DED). Here we have compared these 3 processes.<\/p>\n Technology<\/p>\n<\/th>\n Process<\/p>\n<\/th>\n Lead Time<\/p>\n<\/th>\n Cost<\/p>\n<\/th>\n Key Benefits<\/p>\n<\/th>\n Limitations<\/p>\n<\/th>\n Common Applications<\/p>\n<\/th>\n<\/tr>\n |
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