Title: Compacted graphite iron
Content: recently compacted graphite iron has been used for diesel engine blocks. It has proven to be useful in the manufacture of V topology diesel engines where the loading on the block is very high between the cylinder banks, and for heavy goods vehicles which use diesel engines with high combustion pressures. It is also used for turbo housings and exhaust manifolds, in the latter case to reduce corrosion. Compacted graphite iron Compacted graphite iron (CGI), also known as vermicular graphite iron (GJV, VG, JV or GGV from the ) especially in non-English speaking countries, is a metal which is gaining

Title: Ductile iron
Content: being softer and weaker, these require protection from physical damage. Ductile iron is specifically useful in many automotive components, where strength must surpass that of aluminum but do not necessarily require steel. Other major industrial applications include off-highway diesel trucks, Class 8 trucks, agricultural tractors, and oil well pumps. In wind power industry nodular cast iron is used for hubs and structural parts like machine frames. Nodular cast iron is suitable for large and complex shapes and high (fatigue) loads. SG iron is used in many grand piano harps (the iron plates to which high-tension piano strings are attached). Ductile

Title: Ferritic nitrocarburizing
Content: broken up into four main classes: "gaseous", "salt bath", "ion" or "plasma", or "fluidized-bed". The trade name and patented processes may vary slightly from the general description, but they are all a form of ferritic nitrocarburizing. Salt bath ferritic nitrocarburizing is also known as liquid ferritic nitrocarburizing or liquid nitrocarburizing and is also known by the trademarked names Tufftride and Tenifer. The simplest form of this process is encompassed by the trademarked Melonite process, also known as Meli 1. It is most commonly used on steels, sintered irons, and cast irons to lower friction and improve wear and corrosion resistance.

Title: Iron
Content: indispensable in engineering applications such as the construction of machinery and machine tools, automobiles, the hulls of large ships, and structural components for buildings. Since pure iron is quite soft, it is most commonly combined with alloying elements to make steel. α-Iron is a fairly soft metal that can dissolve only a small concentration of carbon (no more than 0.021% by mass at 910 °C). Austenite (γ-iron) is similarly soft and metallic but can dissolve considerably more carbon (as much as 2.04% by mass at 1146 °C). This form of iron is used in the type of stainless steel used

Title: Iron ore
Content: iron or steel cracks the exposed surface immediately oxidizes. This layer of oxide prevents the mending of the crack by welding. Large cracks cause the iron or steel to break up. Smaller cracks can cause the object to fail during use. The degree of hot shortness is in direct proportion to the amount of sulfur present. Today iron with over 0.03% sulfur is avoided. Hot short iron can be worked, but it has to be worked at low temperatures. Working at lower temperatures requires more physical effort from the smith or forgeman. The metal must be struck more often and

Question: What name is given to the brittle kind of iron used for making engine blocks and manhole covers?
Answer: Cast Iron