![]() They typically have around 18% to 28% of chromium. ĭuplex grades contain higher chromium content compared to others. However, they have a weak high-temperature resistance compared to the austenitic grades. They are also magnetic.įerritic grades have excellent formability and ductility. They cannot be hardened by heat treatment. įerritic grades are basic stainless steel castings that contain chromium content between 10.5% and 18%. Also, they cannot be hardened through heat treatment. These type of grades are the most common among the materials covering at least 70% of production processes. This will also change their form from ferritic to austenitic. When nickel is mixed with stainless steel in adequate amounts, the crystal form will change into “austenite.” This will improve their corrosion-resistance features. The basic structure of these castings is 18% chromium and 8% nickel. They are magnetic and mainly used in general engineering, cutlery, and aerospace. They can be hardened through tempering and quenching like basic carbon steels. Martensitic grades contain chromium about 12% to 18%. They have a higher carbon content with a percentage of 0.1% to 1.2% compared to the other material grades. These are the first stainless steel casting grades that were developed commercially. They earned their names from the crystal form of the steels, which will establish their metallurgical behavior. Stainless steel castings come in various types – martensitic, austenitic, ferritic, and duplex. The most common are molybdenum and nickel. This element has excellent chemistry with oxygen, and will produce a coating of chromium oxide on the component’s surface.Ĭhromium is the constant deciding element however, others are also added to enhance the corrosion-resistance of components. All material grades in this casting method contain at least 10.5% chromium. Stainless steel casting is a special type of casting that is mainly used for its resistance to corrosion. ![]() After that, it will be sent to manufacturers, who will weld and combine it to make the desired forms.Ĭommon Material Grades of Stainless Steel Casting After forming, it will undergo heat treatment, cleaning, and polishing. Other elements used to make stainless steel casting include silicon, nitrogen, manganese, and iron ore.Ĭreating stainless steel castings will first involve melting the steel and then casting into solid form. They will also be useful in the casting’s capacity to resist heat and corrosion. These elements will complete the mechanical properties and grain structure of the casting. The core alloy elements of stainless steel precision casting include molybdenum, nickel, and chromium. Moreover, parts that require to endure harsh temperatures are also made in this process. The manufacturing of products and components that come in complicated shapes which can’t be made by normal processes are also possible with this method. Metals which are difficult to manufacture or form use this method. Stainless steel casting is a well-known method due to the sophisticated shapes it can produce.
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