why is plastic replacing steel in the automobiles,% of plastic in a car  (by value and wieght) in a car ?
476430
reproduction is cheaper.\nIn todays business everyone is lookin for the short cut. Steel was dependable but ah lil more expensive to reproduce than plastic.
110779
Plastic recyling is very difficult because different types of plastic are not miscible with each other.  For this reason, plastic is typically recyled by cutting it into small pieces and then molding it with a binding agent into blocks.  These are then used to replace wood in items like park benches.
888351
$25/hour plus benes.  I heard on the radio that more money is spent per car on health benefits than steel (approximately $1000 of the cost per car is used to pay health benefits)
84586
The information is out of date as it's from the 1990 census data (updated in 1993).\n   - Complete Aircrafts\n   - Motor Vehicle Parts\n   - Computer Equipment\n   - Motor Vehicles\n   - Semiconductors\n   - Aircraft parts\n   - Smelting products\n   - Organic Chemicals\n   - Plastics\n   - Aircraft engines\n\nSource - http://www.census.gov/epcd/oei/images/fig1ex93.gif
217898
It makes plastic and rubber.
606046
some cans are made of more than one material, for example steel coated in aluminum or zinc.  2 component cans are generally thicker than traditional cans
85974
http://www.engineershandbook.com/Tables/frictioncoefficients.htm\n\nhere are quite a few. \n\nI am not sure you will find plastic on steel in motion very easily as that is a good way to destroy something made of plastic in a pretty short period of time.
1797
The first few questions were right  ..BUT the origonal real reason is  Back during WW2 the Union Tank Car Co. of Indiana Stopped making rail tank cars and started making turrets for tanks. All of the reject metal which was the holes cut out for the top of the tanks were saved because ou the cost of metal;. Now being the government CHEEP they saved the round cuts of metal. Some smart engineer seeing the giant mountian of metal discs said   ahh Man hole covers
105033
steel is used most often. Chevy trucks have a hydroformed steel frame that's stronger. some car have aluminum but it's rare and some high performance cars have different material but are expensive and rare
1171262
Iron is the primary element in steel. Carbon is added in an amount generally around to 0.2% (by weight). Structural steel is often made of steel identified as "A36" with the following composition (by weight):\n\nC: 0.26%\nCu: 0.20%\nMn: 0.75%\nP: Max 0.04%\nS: Max 0.05%\nThe remaining ~99% is iron (Fe).\n\nAs you can see, carbon is actually a closer third in amount (by weight) after Fe and Mn. However, the amount of carbon has large effects on the steel properties and is therefore the amount of carbon is a common way of classifying different steels.\n\nSteel actually has a number of different structures, and the amount of carbon is the important element in determing which structure, along with the way it was formed (or heat treated after first being formed from a liquid).\n\nThere are a wide range of elements added to steel and different process and treatments used to achieve the desired properties.
779146
Check this link... Has good info...:\n\nhttp://en.wikipedia.org/wiki/Plastic
962196
It's depends the way you formulate the composition of plastics.These days ABA/ABS is similar to metals and glass.Some composition of polyurethane are also like metals and as transparent as like Glass.Say for example Bakelite which we used in electrical fuses and switches which replace metal as well as providing us security of electrical shocks.
1015578
God made the components of plastics. We only "mix" the components.\n\nIs there plastic in the afterlife? Well, why don't we ask who already got there shall we?\nOh wait... no one is coming back... what should we do?!? We can't live without plastic!~ No we can't!! \n\n(j/k)
921994
to get this typed in glass verses plastic into the yahoo question search i hope it helps.\nQ  Is it true that the EU obliges us to change from glass to plastic bottles?\n\nA  No, it is not true. No one is obliging us to change from glass to plastic bottles. And certainly no such agreement was reached during negotiations.\n\nStatements made to the effect that we will be obliged to change to plastic bottles and that consequently we will have a mountain of plastic to deal with, are not correct. In fact, they are also misleading.\n\nFirst, a background to what exactly we are talking about.\n\nOne of the sources of waste comes from beverage bottles. We discard mineral water plastic bottles, beer cans and glass bottles from imported beer and wine.\n\nOn the other hand, with regards to soft drinks, for a number of years now, Malta has only allowed soft drinks to be bottled in re-useable glass bottles, metal containers or kegs.\n\nThis ban on plastic has the effect of limiting waste because we use less plastic bottles. Instead, we use glass bottles that can be re-used thanks to an efficient deposit-and-return system that encourages us to return glass bottles for re-use.\n\nWhen we return our bottles, we get our deposit back. And it is estimated that this system also keeps some eighty million plastic bottles out of the waste stream. From an environmental point of view, therefore, this system works well. If anything, it needs to be extended to all types of drinks, not just soft drinks and to all types of bottles, not just glass.\n\nHowever, the ban also has the effect of protecting our local soft drinks industry against competition because in practice it blocks imports of soft drinks.\n\nAs a result, it also has the effect of limiting consumer choice. Maltese consumers are limited to soft drinks that are made in Malta. At a price. Statistics show that Malta is one of the most expensive places for soft drinks. The price of the category of drinks that comprises soft drinks is thirty percent (30%) higher in Malta than it is in the EU. Prices in Malta are even higher when compared to wealthier countries such as Luxembourg, Austria, Italy, Spain and France. And, of course, higher than all candidate countries. Soft drinks are only more expensive in Scandinavian countries.\n\nOf course, competition is likely to push prices down.\n\nThis is where the EU comes in. If you are part of the EU, or if you are part of a free trade arrangement with the EU for that matter, then you must allow free trade. There can be no restrictions to free trade. This applies both in the context of membership and even in the context of a free trade arrangement with the EU. You either have free trade or you do not. In free trade you cannot keep out competition by banning plastic bottles.\n\nWhich is fine if we want free trade with the EU. But free trade can here conflict with environmental protection if all types of bottles are freely allowed to be sold without any consideration for what happens to their packaging.\n\nUnless something is done to prevent the potential damaging impact. And something can indeed be done. For instance, under EU law you cannot just dump plastic bottles into the waste stream. Plastic should be recovered, separated from other waste and recycled. On this point, Malta negotiated a transitional period until the end of 2009 to reach a minimum 15% recycling target for plastic.\n\nSpecifically on the use of plastic bottles, during negotiations Malta first requested to maintain its beverage container packaging regime and therefore effectively retain its ban on imported soft drinks. This request was not accepted because the EU argued that Malta could still address waste problems using other means. It was possible to ensure that lifting the ban would not lead to an increase in waste.\n\nIt was therefore agreed that Malta would keep the ban on plastic bottles until the end of 2007. This would give the Maltese authorities enough time to adapt the beverage
812501
Sorry I don't know any specific sites, but maybe I can give you a little more info to help you find info?\n\nUsually people use alloys because they have better properties than any of the metals it is made out of.  For example:\nstainless steel is iron with chromium in it.  It doesn't tarnish, rust or anything like that.\nbrass is copper and zinc
793072
it typically depends on the carbon content of the steel...here is a link for the phase transformation diagram \n\nhttp://www.metalpass.com/metaldoc/general/phasecast_files/image001.jpg\n\nMaterial  Steel  \n  Steel is an alloy of iron and maximum 2.1% carbon. The strength increases with the contents of carbon. Low-carbon steel (less than 0.3 % carbon) is generally used for common industrial products such as nuts, sheets and tubes. \n\nMedium carbon steel (0.3 to 0.6 % carbon) is stronger than low carbon steel and used for automotive and machinery applications. \n\nHigh carbon steel (more than 0.6 % carbon), is strong, hard, and wear resistant and is used for cutting tools, springs and cutlery.  \n\nChemical symbol for iron (the dominant part of steel) is Fe, atomic number is 26, melting point is 1528 C, density 7.9.\nChemical symbol for carbon is C, atomic number is 6, density 2.3 (graphite).
816490
Its better to get a design engineering guide from one of the plastic raw material suppliers as modifying the melt flow index would change many other properties also. A manufacturer rather than a distributor would probably provide you the information more readily.