Aluminium alloys
According to London Market Exchange figures on http://www.metalprices.com/ the averegae price of an alluminium alloy is 1 us dollar/ pound. Using this info and my estimates on the mass of the legs iv calculated that the approximte cost of the legs.
mass of both legs = 27.4 kg = 60.28 lb
cost = $60-$61 = £40
Carbon steel
The LME doesn't give a specific price for carbon steel (at least i couldn't find one) however its most recent price on steels in general was £350 per tonne. however http://www.meps.co.uk/ has a specific prices for carbon steels that are used to build beams but the prices are 4 months old. As meps gives a specified price i will use this to calculate the price of the boom.
mass of ub178 boom = 94.77 kg
cost of carbon steel = $691 per tonne
cost of boom = $65.5 = £42.55
The prices used are bulk purchase prices, individually the boom and the legs may cost more. Also these prices dont take into consideration the cost of manufacturing the boom and the legs.
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Note that these prices are often for bulk prices of raw material. The cost of eg. beams or bar will be notably higher to cover the processing and handling involved.
ReplyDeleteim guessing you never read the last bit
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