In this article we will discuss about:- 1. Manufacture of Cast-Iron 2. Composition of Cast-Iron 3. Types 4. Properties 5. Uses 6. Castings 7. Types of Castings 8. Characteristics of a Good Casting 9. Defects in Casting. Manufacture of Cast-Iron: The cast-iron is manufactured by re-melting pig-iron with coke and limestone. This re-melting is done in a furnace known as [...]
Here is a list of commonly used cast iron: 1. Grey Cast Iron 2. White Cast Iron 3. Mottled Cast Iron 4. Nodular Cast Iron 5. Malleable Cast Iron 6. Alloy Cast Iron. 1. Grey Cast Iron: Composition: It is basically an alloy of carbon and silicon with iron. It contains C = 2.5- 3.8%; Si = 1.1-2.8%; Mn = [...]
There are six basic types of cast iron with several varieties of each as given below: Type # 1. White Cast Iron: White cast iron has all its carbon in the combined cementite form (i.e., free of graphite). Cementite is hard, brittle and white compound. As the fractured surface of white iron looks silvery-white and dull as the fracture occurs [...]
The graphite could be in flake (grey) form, or as nodules (ductile iron). These cast irons are divided in following classes: I. Nickel-alloyed, austenitic graphitic irons (Ni-Resist)- Both grey and nodular forms are used for high corrosion resistance, and for high-temperature service. II. High silicon (14.5% Si) grey irons are used in applications requiring corrosion-resistance. III. High silicon (4-6%) grey [...]
In this article we will discuss about:- 1. Meaning of Cast Iron 2. Melting of Pig Iron to form Cast Iron 3. Production of Different Grades of Cast Iron and their Physical Properties 4. Heat Treatment 5. Important Properties. Meaning of Cast Iron: Pig iron on account of its impurities is very weak and cannot be shaped into different articles [...]