The slag pots are made out of vacuum degassed cast steel, processed to a fine grain size structure with improved properties both in toughness and in elongation.
l Chemical Composition verified on product
Elements | C | Si | Mn | S | P |
Required | 0.15~0.25 | 0.30~0.50 | 0.8~1.00 | Max 0.020 | Max 0.020 |
Typical | 0.16 | 0.44 | 0.98 | 0.012 | 0.012 |
l Mechanical Properties Checked at room temperature in the delivery condition i.e. after completion of the quality heat treatment from cylindrical cast-on test blocks
Properties | Yield (MPa) | Strength(MPa) | Elongate % | Reduction area % |
Required | Min 205 | Min 410 | Min 21 | Min 35 |
Typical | 280 | 456 | 31 | 44 |
Greater diameters are in general more favorable than smaller ones, as this simply reduces the risk of the slag stream hitting the slagpot-wall and also causes a bigger gap between the pot wall and the slag as it solidifies. This larger gap slows down the heat insertion into the slagpot wall and it also allows for easier emptying. Preferred slagpots are constructed with ratio of diameter to height of about 1:1.
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