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Recent content by aguinaldo

  1. aguinaldo

    ggg40

    Hi The chemical composisition to GGG 40 is function the your thickness. But frequenttly the range of equivalent carbon is 4,2 to 4,4% because the graphite flotation and to the casting soundness this relation is a good information % C + Si/7 > 3,9 The Manganese must be very low 0,20% max...

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