High-silicon cast iron anodes, chromium-containing high-silicon cast iron anodes, and ferrosilicon-containing alloys are the most widely used anti-corrosive materials. Since the abundant raw materials and low prices, they have become the main anode materials for cathodic protection since the 1950s. The ferrosilicon anode has good corrosion resistance because the anode surface can form a stable silicon dioxide film. Whether in seawater or fresh water, we recommend using chromium or chromium molybdenum to prevent chlorite corrosion.
Ferrosilicon anodes are widely used for cathodic protection of sea surface structures, buried pipes and cables. It is a low resistance, low power, low energy loss anode. Our ferrosilicon anodes are ASTM 518-86 (Class 3) compliant. This anode is cast by chill casting technology and has better quality and performance than sand casting.
Name
Chemical Ingredient
Impurity content
Si
Cr
Mn
C
Fe
P
S
High silicon cast iron
14-16
-
0.6-0.8
0.8-1.05
Balance
≤0.25
≤0.1
Chromium-containing ferrosilicon
14-16
4.0-4.5
0.6-0.8
0.8-1.05
Balance
≤0.25
≤0.1
Material
Environment
Working
current density（A/m2）
Consumption rate （kg/A ·a）
High silicon cast iron
Seawater
50
0.3-1.0
Fresh water, soil
10
0.3-1.0
Model
Size
Weight
Anode
with cable
Section(mm2)
Length(mm)
YGT-I
Φ50 *1500
22
25
1000
YGT-II
Φ75 *1200
40
25
1000
YGT-III
Φ75 *1500
50
25
1000
YGT-IV
Φ100 *1500
90
25
1000
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