High Silicon Iron Anode

High Silicon Cast Iron Anode

INTRODUCTION

For over Four decades High Silicon Cast Iron Anodes have been used successfully in the cathodic protection industry and is one of t he most reliable protection materials available. The consumption rate of High Silicon Chrome Cast Iron anodes has been found to be between 0.2 and 1.2 pounds per ampere-year. A generally accepted design guideline for anodes buried in coke breeze is 0.7 pounds per amp-year. The anode is available in stick or tubular .

APPLICATION

High silicon iron anode can be utilized in variety of electrolytes, from soil and fresh water to brackish and salt water environments. it is suitable for use in deep and conventional ground bed applications

COMPOSITION (ASTM A518 Grade 3)

Silicon	14.20-14.75%
Chromium	3.25-5.00%
Manganese	1.50% max.
Carbon	0.70-1.10%
Copper	0.50% max.
Molybdenum	0.20%
Iron	Remainder

STANDARD SIZE & NOMINAL DISCHARGE

Anode Type	Nominal Weight	Nominal Discharge per sq. ft.	Nominal Diameter	Nominal Length	Nominal Area
STICK	lbs (kgs)	amps - amps	inch (mm)	inch (mm)	sq. ft. (sq M)
	44 (20)	2.0 - 2.6	2 (50)	60 (1520)	2.6 (0.24)
	60 (27)	2.0 - 2.7	2 (50)	60 (1520)	2.7 (0.25)
	26 (12)	1.5 - 2.0	1.5 (38)	60 (1520)	2.0 (0.19)
	110 (50)	3.0 - 6.0	3 (76)	60 (1520)	4.0 (0.37)
TUBULAR	50 (23)	3.2 - 3.8	2.2 (56)	84 (2130)	4.2 (0.39)
	50 (23)	2.6 - 3.5	2.6 (66)	60 (1520)	3.5 (0.33)
	70 (32)	3.7 - 5.0	2.6 (66)	84 (2130)	4.9 (0.46)
	95 (43)	5.3 - 7.0	3.8 (97)	84 (2130)	7.0 (0.65)
	122 (55)	6.6 - 8.8	4.8 (122)	84 (2130)	8.8 (0.82)
	177 (80)	6.6 - 2.6	4.8 (122)	84 (2130)	8.8 (0.82)
	230 (104)	2.0 - 2.6	4.8 (122)	84 (2130)	8.8 (0.82)
	270 (122)	2.0 - 2.6	6.7 (170)	84 (2130)	12.3 (1.14)

Note: Maximum amperage based on maximum value in manufacturer publications, 15-year minimum life criterion (0.7 lb/ampere-year or 0.31 kg/ampere-year) at 80% utilization, or 1 ampere/sq ft (10.8 amperes/m2).