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| A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | Definition: Its main use in the steel industry is as an additive in leadbearing freecutting steels to further improve their machinability. Its presence in the steel is either within the manganese sulphide particles, where it is partially soluble, or as particles combined with lead or manganese. For certain applications it offers significant improvements in machinability but the added cost is a factor that should be taken into account.
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