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| steel Any of various alloys based on iron containing carbon (usually 0.1-0.7 per cent) and often small quantities of other elements such as phosphorus, sulphur, manganese, chromium, and nickel. Steels exhibit a variety of properties, such as strength, machinability, malleability, etc., depending on their composition and the way they have been treated | |||
| çelik: 10 phrases in 3 subjects |
| Construction | 2 |
| Environment | 2 |
| Metal science | 6 |