grey cast iron making high melting point

How cast iron stove is made - material, making, history, …

Making cast iron 1 Iron ore is dug out of the earth in surface mines. The ore is obtained in lumps ranging in size from more than 40 in (1 m) in diameter to less than 0.04 in (1 mm) in diameter. To produce cast iron or steel, the lumps must be 0

The Metal Casting Operation

The random impacts caused by turbulence, amplified by the high density of liquid metal, can cause mold erosion. An undesirable effect in the manufacturing process of metal casting, mold erosion is the wearing away of the internal surface of the mold.

Cast Iron Properties, Classifiion, Chemical …

Cast iron is basically an alloy of iron and carbon and is obtained by re-melting pig iron with coke, limestone and steel scrap in a furnace known as cupola. The carbon content in cast iron varies from 1.7% to 6.67%. It also contains small amounts of silicon

Steel in Ancient Greece and Rome - Dallas Trinkle

The cast iron buttons were then reheated and turned in the direct blast flame to a temperature just below their melting point. The buttons could then be heated and welded together by pounding. This process provided a fairly homogenous alloy of steel having 1-1.6% carbon content.

Sustainability of Cast Iron - EzineArticles

Cast iron is iron or ferrous alloy which has been heated until it liquefies and is then poured into mould to solidify. It is usually made from pig iron. It can be thought of as an alloy of carbon and iron. There are two types of cast iron and they are determined by the carbon content as Grey cast iron and White cast iron. The qualities and uses of cast iron make it highly sustainable even in

Metal Sculptures: Art, Metals and Pictures - Weld Guru

2019/12/12· The iron-carbon eutectic point lies at 1403 kelvins and 4.3 mass % carbon. Since cast iron has nearly this composition, its melting temperature of 1420 to 1470 K is about 300 K lower than the melting point of pure iron. Cast iron tends to be brittle, unless the

Grey cast iron ASTM 40 [SubsTech]

Grey cast iron ASTM 40 Chemical composition: C=2.7-4%, Mn=0.8%, Si=1.8-3%, S=0.07% max, P=0.2% max Property Value in metric unit Value in US unit Density 7.06 *10³-7.34 *10³ kg/m³ 441-458 lb/ft³ Modulus of elasticity 124 GPa 18000 ksi


Normally a high temperature phase consisting of carbon dissolved in iron, it can exist at room temperature in austenitic and austempered cast irons. In austenitic irons, austenite is stabilized by nickel in the range 18-36%.

How Is Cast Iron Made? | Sciencing

2017/4/24· The making of cast iron begins with a coination of raw materials. Iron is rarely found in its pure form. Only meteorites contain pure iron. The iron in use for centuries is found in the coination of iron and other elements. These coinations are known as iron

(PDF) Defects, Root Causes in Casting Process and Their …

(melting point) of t he material, solidifiion starts. Solidifiion involves a change of phase of the material and differs depending on Reduction of defects in grey cast iron castings by


Gray iron can also have sulfur that is too high. Gray iron specifiions frequently limit sulfur contents to .12 or .15. Sulfur in gray iron that isn''t tied up with manganese will weaken the iron drastically. Sulfur is also reported to be one of the more difficult elements for

Iron Alloys :: MakeItFrom

Cast Precipitation-Hardening Stainless Steel Low-Expansion Iron Alloy Maraging (18Ni) Steel Otherwise Unclassified Iron Alloy Stainless Steel Welding Filler Tool Steel

Ferrous Metals; Its Types, Uses, Properties [Complete Guide]

i. Grey Cast Iron: Grey Cast Iron is produced by melting the foundry Pig Iron or grey Pig Iron in the cupola furnace. It shows grey color when fractured. The grey color is due to the presence of free graphite. The usual composition of Grey Cast Iron is: Iron – 92 percent.

Identify Metals : 17 Steps (with Pictures) - Instructables

Aluminum is a shiny grey metal and has a clear oxide that forms on contact with air. This may not be the best thing for identifying it, but aluminums melting point is 658 C (1217 F). Also aluminum is non sparking. Aluminums density is 2.70 g/cm 3, this is a good way to identify it because you can find the density of a material by density = mass ÷ volume.

Properties of Gray Cast Iron - Dandong Foundry

Properties of Gray Cast Iron Gray cast iron can be regarded as carbon steel as matrix organization with graphite flakes added. Gray cast iron can be divided into three egories according to the different matrix organization: ferritic matrix of gray cast iron, pearlitic gray cast iron matrix, ferrite and pearlite matrix of gray cast iron.


Grey Iron 1510 340 801 500 SGIron 1649 363 - 606 It is clear from the table that the theoretical Energy required for melting iron is only 340kWH per Ton whereas the actual Power required is around 600 to 900 units. This vast difference is due to two factors

The advantages & disadvantages of gray cast iron

2020/7/14· Gray iron is a versatile, low-cost alloy with a long history and many manufacturing appliions. Gray iron''s high carbon content gives it a dull, grey appearance with low reflectivity. Common uses for grey cast iron include pipes, cookware and automobile parts.

Manufacturing Process of Cast Iron Castings

Making Cast Iron The term cast iron is generally used to describe grey cast iron, but it can also describe a whole group of alloys too. The surface color of the cast iron is often used to identify it. Cast iron begins its life as pig iron, which is remelted and often

Steel - Live and Learn

Add any more carbon and you get cast iron, which has a lower melting point and is easier to cast. Wrought iron containing only a very small amount of other elements, but contains 1–3% by weight of slag in the form of particles elongated in one direction, giving the iron a characteristic grain.

How to Melt Lead: 12 Steps (with Pictures) - wikiHow

2019/12/17· How to Melt Lead. Lead has a relatively low melting point, so it is ideal for casting into shapes of your choosing. That said, melting lead must be done with extreme caution and diligence, because it presents major burn, fire, and

Thermal Expansion of Metals - Engineering ToolBox

Cast Iron, grey 32 - 212 5.8 Cast Steel, 3% C 7.0 Chromium 3.3 Cobalt 6.7 Copper 68 - 572 9.8 Copper-Base Alloy - Manganese Bronze 11.8 Copper-Base Alloy - C1100 (Electrolytic tough pitch) 9.8 Copper-Base Alloy - C14500 (Free Machining Cu) 9.9 9.9

CHEMISTRY IGCSE- [10]METALS Flashcards | Quizlet

1)Solids(except mercury)at room temperature 2)High melting and boiling points 3)Hard and dense 4)Sonorous(make a ringing sound when struck) 5)Ductile(can be pulled into wires) 6)Malleable(can be hammered) 7)Good electrical/thermal conductors 8)Grey in color

White Cast Iron – IspatGuru

By chilling grey or ductile iron on the outside and letting it cool slowly inside, it is possible to produce parts with a hard surface of white cast iron with a ductile core (chilled cast). The ductility of white cast iron can be improved by transformation to malleable iron on prolonged heating between 800 deg C and 900 deg C in a non oxidizing atmosphere.


melting point). Positherm thermocouples are available in type S, R or B calibrations. For appliion in low temperature steel, cast iron and aluminium alloys, it is made of aluminium. A copper cap is used for measurements in copper alloys. probe

Wrought iron - Wikipedia

Wrought iron is an iron alloy with a very low carbon content (less than 0.08%) in contrast to that of cast iron (2.1% to 4%). It is a semi-fused mass of iron with fibrous slag inclusions (up to 2% by weight), which gives it a "grain" reseling wood that is visible when it is etched or bent to the point of failure.