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CHEMICAL COMPOSITION

We developed rigid controls for the chill casting process in accordance with the highest standards — meeting X-Ray Level 1 as per ASTM E186/E446, chemistry to either ASTM A518-99 Gr 1 or 3. ASTM A518 Grade 3 chemistry is particularly suited for more severe environments(such as brackish water or saltwater), where the level of chromium is elevated to enhance anode performance.


◉ ASTM A518/A518M Grade 1 (Si-Fe)

Element

Content (%)

Silicon (Si)
14.20 ~ 14.75
Chromium (Cr)
0.500 max.
Manganese (Mn)
1.500 max.
Copper (Cu)
0.500 max.
Molybdenum (Mo)
0.500 max.
Carbon (C)
0.650 ~ 1.100
Phosphorus (P)
-
Sulphur (S)
-
Iron (Fe)
Remainder


◉ ASTM A518 / A518M Grade 3 (Si-Fe-Cr)

Element

Content (%)

Silicon (Si)
14.20 ~ 14.75
Chromium (Cr)
3.250 ~ 5.000
Manganese (Mn)
1.500 max.
Copper (Cu)
0.500 max.
Molybdenum (Mo)
0.200 max.
Carbon (C)
0.700 ~ 1.100
Phosphorus (P)
-
Sulphur (S)
-
Iron (Fe)
Remainder


◉ BS 1591 1975

Element

Content (%)

Silicon (Si)
14.25 ~ 15.25
Chromium (Cr)
0.500 max.
Manganese (Mn)
0.500 max.
Copper (Cu)
-
Molybdenum (Mo)
-
Carbon (C)
1.400 max.
Phosphorus (P)
0.250 max.
Sulphur (S)
0.100 max.
Iron (Fe)
Remainder


ELECTROCHEMICAL PROPERTIES

Due to its high content of silicon, the anode surface is readily and continually oxidized with a thin film of hydrated silicon oxides, which protects the anode from metal pitting. Our high silicon cast iron anodes exhibit extraordinary corrosion resistance and low consumption rate in low-pH environment.


◉ Soil

Technical Measurement

Performance

Current Density (A/m²) 2 ~ 5
Consumption Rate (kg/A.y)
0.1 ~ 0.5


◉ Coke Breeze

Technical Measurement

Performance

Current Density (A/m²) 5 ~ 10
Consumption Rate (kg/A.y)
0.05 ~ 0.3


PRACTICAL APPLICATION

Canister high silicon cast iron anode is normally used in area with high water table or where it is difficult to install loose coke backfill which is normally provided around anodes. Our canistered high silicon cast iron anode are perfect material for low resistivity soils, shallow vertical and horizontal surface ground beds, as well as wet, marshy soil conditions where caving is likely to occur.

ZHEJIANG YUXI CORROSION CONTROL CORPORATION
CONTACT
Tel:+86(574)8388 2233
Fax: +86(574)8388 2238
info@yuxi-anode.com
Ningbo Headquarter
Add:767 Liangzhu RD, Ningbo 315100, P.R,China
Factory
Add:Dongxi Industrial Zone, Xinqiao, Xiangshan, Ningbo, 315725, China