Slag samples from the 60 tons EAF furnace

Slag samples from the 60 tons EAF furnace

Figure 1: Partially crystallized structure of slag with remnants of non reacted lime, scale bar: 200 µm.

Table 1: Chemical composition of slag samples, % wt.

Figure 2: Particles of tricalcium silicates and dicalcium silicates in glassy matrix, scale bar: 200 µm.

Inclusion name: Slag
Record No.: 658
Inclusion formula: No data
Inclusion type (Macro/Micro/Nano): Micro
Inclusion type (Exogenous/Indigenous): No data
Inclusion classification: No data
Inclusion composition in weight %: No data
Sample: Slag from the EAF furance. Capacity of both EAF and ladle furnace (LF) is 60 tons of steel.
Steel composition in weight %: Steel grade A: 0.17% C, 1.20% Mn, 0.25% Si, 0.010% P, 0.012% S, 0.025% Al, 0.0025% Ca, 0.0045% O, 0.0070% N. Steel grade B: 0.08% C, 0.44% Mn, 0.23% Si, 0.010% P, 0.012% S, 0.030% Al, 0.0030% Ca, 0.0040% O, 0.0075% N.
Note: Fig. 1 shows partly crystallized slag structure with many remnants of non reacted lime, Fig. 2 shows tricalcium silicates (needles) and dicalcium silicates in glassy matrix of ladle furnace slag. In some cases exogeneous inclusions of slag can be found in steel castings. To trace their origin, it is important to know also the structure and composition of ladle furnace slag.
Reference: Not shown in this demo version.