https://padlet.com/20004624/4u2w6snmy8xgieg7 Made with a curious mind en-us 2021-11-09 03:11:04 UTC 2025-11-29 19:23:20 UTC hello@padlet.com https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877072405 2021-11-09 03:15:17 UTC https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877072405 https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877076841 2021-11-09 03:17:19 UTC https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877076841 20004624 https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877077780 - Oldest form of purified iron
- Tough malleable, ductile, corrosion resistant and also melts only in high temperature
- Used to make bolts, rivets, pipes
- It is now used for specialist applications]]> 2021-11-09 03:17:46 UTC https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877077780 https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877082408 - Produced by smelting iron ore in blast furnace. 
- Consists about 4% carbon and small amounts of manganese, silicon, phosphorus, sulphur and other  impurities
- Very brittle
- Intermediate product to make into subsequent useful products]]> 2021-11-09 03:19:59 UTC https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877082408 https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877104578 2021-11-09 03:30:06 UTC https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877104578 https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877104972 Pig iron is being re - melted in order to produce the cast iron in a cupola]]> 2021-11-09 03:30:14 UTC https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877104972 https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877115348 Is made up of iron and carbon. 
An accurate way to define steel is that it has lower carbon content as compared to Cast Iron or Pig Iron]]> 2021-11-09 03:34:54 UTC https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877115348 https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877115492 It is quite soft as well as weak in tension but it is easy to be machined ]]> 2021-11-09 03:34:57 UTC https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877115492 https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877124505 Harder as well as more brittle]]> 2021-11-09 03:38:58 UTC https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877124505 https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877127230 It is strong and good resistance plus easy to be machined ]]> 2021-11-09 03:40:16 UTC https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877127230 https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877131313 Provides a much greater malleability as compared to the white cast iron ]]> 2021-11-09 03:42:10 UTC https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877131313 https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877135297 2021-11-09 03:44:08 UTC https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877135297 https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877138566 -Burn a mixture of gas/oil and air over the metal
-Fuel and air are preheated to a high temp in regenerators
-Lime is added to the charge to form a basic slag
-Slag float on surface of the molten steel and drawn off
-Molten steel then is tapped and poured into mould

]]> 2021-11-09 03:45:48 UTC https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877138566 https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877138954 -Based of a steel cased converter which can hold up to 400 tonnes of metal
- Charge > scrap steel, lime and molten pig iron
-Oxygen is blown at the surface of molten charge
-Impurities of metal are oxidised 
-Temperature is controlled and the molten metal is analysed
-If temp and analysis is satisfied, hood is lifted > converter tilt> steel is poured below the slag and to the ladle
-Steel is then conveyed to the casting plant and cast into ingot
-Converter  is tilted again to pour the slag into the slag ladle]]> 2021-11-09 03:46:01 UTC https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877138954 https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877139395 -The charge is melted by the electric ark struck which occurs between the carbon electrodes and the steel
-Impurities are oxidised by melting it under the slag
-the slag absorbs the oxidised impurities which will be removed by tilting the furnace.
-Charge> scrap, iron ore, pig iron and limestone


]]> 2021-11-09 03:46:15 UTC https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877139395 20004624 https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877143230 It is made by repeatedly heating the metal and work it with tools to deform it. Since it is highly malleable, it can be heated or be reheated to form different shapes. It grows stronger the more it gets worked.]]> 2021-11-09 03:48:21 UTC https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877143230 https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877143838 2021-11-09 03:48:41 UTC https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877143838 200425131 https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877181582 2021-11-09 04:09:22 UTC https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877181582 20004624 https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877181594 - Molten pig iron was poured into the Basement converter
- Air was blown in through tuyeres at the bottom of the chamber to bubble the molten iron
- Oxygen combined with the impurites in the iron to form slag at the top
- Converter is tilted to pour out the finished steel into the ladles for casting and the slag to be disposed]]> 2021-11-09 04:09:23 UTC https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877181594 https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877189759 - Alloys of iron up to 1.7% of carbon]]> 2021-11-09 04:13:38 UTC https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877189759 200425131 https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877191331 - Iron - Carbide (Fe3c) 
- Carbons are inclusive of 6.67% 
- Is hard plus brittle ]]> 2021-11-09 04:14:35 UTC https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877191331 200425131 https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877197288 - Inclusive of not more than 0.006% of carbon
- Softness and ductility close to pure iron ]]> 2021-11-09 04:18:07 UTC https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877197288 200425131 https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877201560 2021-11-09 04:20:29 UTC https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877201560 20004624 https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877201712 - Also known as stainless steel or corrosion resistant alloy steels 
- Can also be formed into any shapes

]]> 2021-11-09 04:20:35 UTC https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877201712 200425131 https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877206353 2021-11-09 04:23:18 UTC https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877206353 https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877210209 - Enhances hardness, tensile strength, toughness, ductility, and corrosion resistance at the cost of its machinability
- Used for construction of making storage cylinders for liquified gases]]> 2021-11-09 04:25:33 UTC https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877210209 20004624 https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877214374 - High hardness, strength and also resistant to corrosion 
- Used for balls and rollers of antifriction bearings]]> 2021-11-09 04:28:02 UTC https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877214374 https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877226944 Low Carbon / Mid Steel 
- Contains up to 1.7 % of Carbon]]> 2021-11-09 04:35:26 UTC https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877226944 https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877227490 - Contains 0.8% to 1.7% of carbon]]> 2021-11-09 04:35:45 UTC https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877227490 https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877227871 -Contains 0.3% to 0.8% of Carbon]]> 2021-11-09 04:35:58 UTC https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877227871 20004624 https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877230085 - Has strength, toughness and also resistant to wear and fatigue when treated with heat
- Can be folded and flattened withouth breaking 
- Can be used to make springs , ball roller bearings]]> 2021-11-09 04:37:14 UTC https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877230085 200425131 https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877234756 - Door Latches 
- Engine Mountings 
- Aircraft Structure ]]> 2021-11-09 04:39:49 UTC https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877234756 200425131 https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877240371 - Schools 
- Carparks 
- Airport Terminals 
- Shopping Malls ]]> 2021-11-09 04:43:02 UTC https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877240371 200425131 https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877315385 - Contains up to 1% of manganese in which is the leftover of the process of making steel ]]> 2021-11-09 05:28:34 UTC https://padlet.com/20004624/4u2w6snmy8xgieg7/wish/1877315385