Rare Earth Ferrosilicon Alloy RESiFe For Grain Refinement Of High Chromium Cast Iron
product detail
Name: Rare Earth Ferrosilicon Alloy Molecular formula: RESiFe
Size: 0~5 mm or 5~50 mm or 50~150 mm RE content: 28~35%(wt)
Description: Rare earth ferrosilicon is massive, metallic luster, hard and brittle, easy to crush. The rare earth ferrosilicon alloy is silver gray. Rare earth ferrosilicon alloy generally contains RE 17% - 37%, Si 35% - 46%, Mn 5% - 8%, Ca 5% - 8%, Ti 6%, and the rest is iron. Rare earth ferrosilicon is made from coke, steel scrap, quartz (or silica) by electric furnace smelting. Silicon and oxygen are easy to synthesize silica. Therefore, ferrosilicon is often used as deoxidizer in steel refining. At the same time, due to the large amount of heat released during the formation of SiO2, the energy consumption of steel refining can be increased at the same time of deoxidization.
Specification:
|
Name |
RESiFe-28 |
RESiFe-30 |
|
|
Molecular formula |
RESiFe |
RESiFe |
|
|
RE |
wt% |
27~30 |
29~35 |
|
Ce/RE |
wt% |
≥46 |
≥46 |
|
Si |
wt% |
≥48 |
≥48 |
|
Ca |
wt% |
≤3.0 |
≤3.0 |
|
C |
wt% |
≤0.50 |
≤0.50 |
|
S |
wt% |
≤0.05 |
≤0.05 |
|
P |
wt% |
≤0.05 |
≤0.05 |
|
Fe |
wt% |
The rest |
The rest |
|
property |
Block, non-pulverized, silver gray |
||
|
Application |
It is a modifier in steel and can refine the grains of high chromium cast iron |
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|
package |
Conventional packaging, flexible packaging according to customer needs |
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Package: Conventional packaging, 25kg per bag and ton container packaging, also provide small package: 100g, 500g, 1kg, 5kg and other small packaging.
Used: Rare earth ferrosilicon alloy can refine grain size, and proper amount of rare earth ferrosilicon can improve the morphology of eutectic carbide in high chromium cast iron. When 0.3% rare earth ferrosilicon is added, the long strip carbide becomes shorter and the eutectic carbide is broken. When the content of rare earth ferrosilicon reaches 0.9%, the lath carbides become shorter and tend to be isolated and evenly distributed, but there are still some lath carbides. However, when the content of rare earth ferrosilicon exceeds 0.9%, the eutectic carbide begins to coarsen.