Home > categories > Minerals & Metallurgy > Pig Iron > The difference between iron and wrought ironDon't say one is raw, the other is ripe
Question:

The difference between iron and wrought ironDon't say one is raw, the other is ripe

The difference between iron and wrought ironDon't say one is raw, the other is ripe

Answer:

Generally refers to the iron alloy carbon content in 2~4.3% iron. Also called iron. Iron in addition to carbon, silicon, manganese and also contains a small amount of sulfur and phosphorus, it can cast NONMALLEABLE. According to the different forms of carbon in pig iron, and can be divided into several kinds of iron and iron for steelmaking, casting ductile iron. Steel and iron in carbon mainly exists in the form of iron carbide, the white section, usually called white iron. This kind of hard and brittle properties of cast iron are generally used as raw material for steelmaking. Cast iron in carbon flake graphite form exists, its fracture is gray, usually called gray.
Generally less than 0.2% carbon content that wrought iron or iron, the content of 0.2-1.7% in the steel, content of more than 1.7% is iron. Iron soft, good plasticity, easy deformation, strength and hardness were lower, not widely used; iron carbon, hard and brittle, almost no plastic.In addition to talk about discrimination: the distinction between pig iron and wrought iron with carbon content of course can not distinguish in life, because you can't see it. So we can only watch and ear differentiation:1, see: Iron fracture is rough, showing a bead (for the sake of coarse grain iron), and wrought iron fracture is generally more smooth; if this is a new fracture, but also to see the dark and shiny born iron wrought iron lighter; iron fracture is generally irregular, because it is very crisp, mostly to be interrupted, (which is processed, it is very flat and wrought iron) must not be interrupted, mostly by certain way processed separately, so the fracture is generally neat fracture; if it is cutting, that is cooked pig iron is iron. Can not be cutting; iron surface will not have pores, familiar iron porosity; if a piece of iron is a significant deformation (bending) that is wrought iron because of poor plasticity, not so true to the deformation, bending, or broken or obvious The crack will not be very large and there are some details which can not be made clear. It is necessary to have some experience2, listen: Pig beating sound boring, beating sound loud. Wrought iron3, if you have a file in the hand, can be used to file to see finish can also make a judgment from the file down the iron can also be seen, but this is beyond your request, it can be done in the factory.4, if placed in the grinder grinding, see iron spark from a judge or iron wrought iron, but this is to be in the factory in order to do it.About it, may not be full, but through these methods, generally can distinguish pig iron or wrought iron.
Because the graphite is soft, with lubrication, so the cast iron has good abrasion resistance, cutting and casting performance. But it is not anti digital strength, it is not only used for producing all kinds of forging, casting, such as a variety of machine tool bed casting base, iron pipe. Ductile iron to carbon exists in spherical graphite morphology the mechanical properties of gray iron, far and close to steel, it has excellent casting, machining and wear resistance, has a certain flexibility, widely used in the manufacture of gear, crankshaft, piston and a variety of advanced casting machine parts. In addition to silicon, manganese, nickel or other elements of a particularly high amount of iron, alloy such as iron, ferrosilicon, ferromanganese, commonly used as raw material for steelmaking. In certain alloy steel-making pig iron, steel can improve performance.

Share to: