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Estimation and Costing

Wrought Iron

Wrought Iron:   It is almost pure iron. It contains less than 0.15% carbon. Attempts are made to reduce the other impurities during the process of manufacturing.   Properties of Wrought Iron: 1. Its ultimate compressive strength is 200 N/mm2 and ultimate tensile strength is 375 N/mm2. 2. It is …

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Cast Iron

 Cast Iron: Important properties of cast iron are:   (a) Compression strength is 700 N/mm2 and tensile strength is 150 N/mm2. (b) It is brittle and does not absorb shocks (c) Its specific gravity is 7.5. (d) Its structure is coarse, crystalline and fibrous. (e) It cannot be magnetised. (f) …

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