Mag Ferrosilicon

Magnesium Ferrosilicon is added to molten cast iron in order to convert the graphite shape from a flake network found in gray iron to spheroidal for ductile iron. The evenly distributed graphite spheres or nodules greatly increase the cast irons strength and give ductile iron elongation prior to failure. Hickman, Williams & Company offers many varieties of Magnesium Ferro Silicon alloys. From a 3 to 4 percent magnesium alloy for minimal reactivity and high magnesium recovery, to the standard 5 to 6 percent magnesium alloy for normal practices. Both magnesium levels of this alloy are also available in multiple rare earth ranges and compositions.
Typical Analysis
Product %Mg %Si %Ca %Al %Ce %TRE
Magnesium Ferrosilicon Treatment Alloys
  Rare Earth Free Grades
    HW-MAG 3
    HW-MAG 5
 
 
2.9-3.4
5.5-6.5
 
 
44-48
44-48
 
 
0.8-1.35
0.8-1.35
 
 
1.25 Max
1.25 Max
 
 
 
 
 
 
 
 
  Cerium Bearing Grades
    HW-MAG 5L
    HW-MAG 5M
    HW-MAG 5MHP
    HW-MAG 5H
 
5.5-6.5
5.5-6.5
5.5-6.5
5.5-6.5
 
44-48
44-48
44-48
44-48
 
0.8-1.35
0.8-1.35
0.3 Max
0.8-1.35
 
1.25 Max
1.25 Max
0.30 Max
1.25 Max
 
0.30-0.40
0.45-0.70
0.45-0.70
0.90-1.25
 
 
 
 
 
  Blended Rare Earth Grades
    HW-MAG 3LA
    HW-MAG 3LAFT
    HW-MAG 5LA
    HW-MAG 5LB
    HW-MAG 5LC
 
3.0-3.8
3.0-3.8
5.5-6.5
5.5-6.5
5.5-6.5
 
44-48
44-48
44-48
44-48
44-48
 
0.8-1.35
0.8-1.35
0.8-1.35
0.8-1.35
0.8-1.35
 
1.25 Max
1.25 Max
1.25 Max
1.25 Max
1.25 Max
 
 
 
 
 
 
 
1.50-2.20
1.30-1.80
0.50-0.85
0.75-1.10
1.25-1.75
  Calcium Modified Grades
    HW-MAG 4LBHC
    HW-MAG 5LBHC
 
4.5-5.5
5.5-6.5
 
44-48
44-48
 
1.8-2.25
0.8-1.35
 
1.25 Max
1.25 Max
 
 
 
 
0.50-0.85
0.50-0.85
Product Standard Sizing
Magnesium Ferrosilicon Treatment Alloys Standard industry sizes including stream treatment applications

 

The information contained is based on data available. However, no warranty is expressed or implied regarding the accuracy of the data or the results obtained from the use thereof.