Aplication
Application
Low magnesium alloys are mainly used in the overpouring process. Depending on the working and operating conditions, the appropriate design of the treatment ladles and the alloy charge coverage is determined. It may be appropriate to combine certain particle sizes and alloy types. The alloy particle size should be matched to the requirements of the treatment process, the treatment unit and the operating conditions. Other possible uses are Mg treatment in the mold (see INMOLD process data sheet).
Chemical composition (indicative analysis)
Type VL* |
CHEMICAL COMPOSITION |
% Mg |
% Ca |
% Cer-MM |
% Si |
% La |
VL 63 (M) |
6,0 – 6,6** |
1,9 |
0,7 |
45 |
_ |
VL 63 (O) |
6,0 – 6,6** |
1,9 |
– |
45 |
– |
VL 63 (M) TC |
6,4 – 7,0 |
1,3 |
0,7 |
45 |
– |
VL 63 (M) 3 |
6,0 – 6,6** |
1,9 |
0,3 |
45 |
– |
VL 63 EGT |
6,0 – 6,6 |
1,9 |
0,15 |
45 |
– |
VL 63 (M) T |
6,0 – 6,6 |
3,0 |
1,0 |
45 |
– |
VL 63 LA |
6,2 – 6,8 |
1,8 |
– |
45 |
0,5 |
VL 73 (M) |
7,0 – 7,6 |
2,5 |
2,5 |
45 |
– |
VL 73 (O) |
7,0 – 7,6 |
2,5 |
– |
45 |
– |
VL 7 |
5,7 – 6,3 |
0,7 |
0,5 |
45 |
– |
VL 53 (M) |
9,0 – 11,0 |
2,0 |
0,7 |
44 |
– |
VL 53 (O) |
9,0 – 11,0 |
2,0 |
– |
44 |
– |
VL 53 (S) |
8,0 – 9,5 |
3,0 |
3,5 |
43 |
– |
VL 50 (M) |
5,0 – 5,5 |
1,9 |
0,7 |
45 |
– |
VL 50 (O) |
5,0 – 5,5 |
1,9 |
– |
45 |
– |
Noduloy 3 |
3,8 – 4,3 |
0,5 |
1,3 |
45 |
– |
Denodul 5 |
5,0 – 6,0 |
1,5 |
2,5 |
45 |
– |
* For special analyses please consult us.
** Except size 0,125 – 1 mm: 5,4 – 6,0% Mg
General conditions
The coagulation and precipitation of the reaction products that inevitably arise, especially in gas- and sulfur-rich smelters, are slow and imperfectly developed.
In case of high sulfur content in the base steel there is an increased risk of MgS inclusions and possible resulfuration.
If possible, the S content before Mg treatment should not exceed 0.02%. At S contents > 0.02%, LV 53 should be considered.
Sizes
The standard sizes of the master alloy types have been adjusted to the treatment method.
Standar sizes:
- 0,125 – 1 mm*
- 1 – 4 mm
- 4 – 10 mm
- 1 – 10 mm
- 10 – 30 mm
* At this size the Mg content is ~ 10 % below the value specified above.
Exceptions:
- VL 63 EGT only available in size 1,2 – 30 mm.
- VL 63 LA only available in size 1 – 4 mm / 4 – 30 mm.
Packaging covered with protective film.
Embassy
- 25 kg paper sacks on pallet
- 150 kg steel drums on pallet
- 1000 kg big bag on pallet
Packaging covered with protective film.
In case of VL 53 only 125 kg.
Storage and transport
Magnesium master alloys can be stored without restriction in their original packaging. Contact with moisture should be avoided. The regulations governing hazardous substances must be observed. For further information, please refer to our shipping section. Magnesium master alloys are classified as non-dangerous goods according to transport regulations.