Features
Centrifugal Casting Process
Our solid stick high silicon cast iron anodes are centrifugal chill cast. The casting mold rotates at over 1000rpm producing a g-force that eliminates any trapped gas from silicon iron and throws any impurities to the inside bore of the anode where they do not hinder anode performance. Hence, the metal matrix is tight and dense; increasing the life of the anode.
Compact Structure
Due to the consistent weight and greater density of the anode, there is less flake grain boundaries and lower chemical segregation. No gas porosity, no internal shrinkage and no non-metallic inclusions.
Tight Sealing Connection
Cast in taper pin or bolt connection with high quality epoxy resin encapsulation & heat shrink sleeve ensures superior cable connection at the anode head.
ISO 9001 Quality Control
Anodes are manufactured, inspected, and tested in accordance with our stringent quality control procedures to ensure high product quality every time. According to ASTM sampling practice, our anode samples are taken before and after every heat.
Chemical Composition
| Element | ASTM A518 / A518M Grade 1 (Si – Fe) | ASTM A518 / A518M Grade 3 (Si – Fe – Cr) | BS 1591 1975 |
| Silicon (Si) | 14.2% ~ 14.75% | 14.2% ~ 14.75% | 14.25 ~ 15.25% |
| Chromium (Cr) | 0.5% max. | 3.25% ~ 5.0% | 0.5% max. |
| Manganese (Mn) | 1.5% max. | 1.5% max. | 0.5% max. |
| Copper (Cu) | 0.5% max. | 0.5% max. | — |
| Molybdenum (Mo) | 0.5% max. | 0.2% max. | — |
| Carbon (C) | 0.65% ~ 1.1% | 0.7% ~ 1.1% | 1.4% max. |
| Phosphorus (P) | — | — | 0.25% max. |
| Sulphur (S) | — | — | 0.1% max. |
| Iron (Fe) | Remainder | Remainder | Remainder |
Note: 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.
Electrochemical Properties
For anodes of the same chemistry and microstructure, variance in consumption is primarily due to the chemical and physical characteristics of the anode environment. The consumption rate does not appear to be significantly affected by current density (amperes per unit area of anode surface). The use of coke breeze around the anode in soil ground beds will tend to lower the consumption rate.
| Environment | Nominal Current Density | Consumption Rate |
| Soil / Fresh Water | 0.2 ~ 0.5 A/ft² (2 ~ 5 A/m²) | 0.2 ~ 1.2 lbs/A.y (0.1 – 0.5 kg/A.y) |
| Coke Breeze | 0.5 ~ 1 A/ft² (5 ~ 10 A/m²) | 0.1 ~ 0.7 lbs/A.y (0.05 ~ 0.3 kg/A.y) |
| Seawater | 1 ~ 5 A/ft² (10 ~ 50 A/m²) | 0.7 ~ 1 lbs/A.y (0.3 ~ 0.5 kg/A.y) |
Specification
| Item No. | Shaft Diameter (ΦA) | Head Diameter (ΦB) | Overall Length | Surface Area | Weight |
| JA-48-SA2S | Ф1.5″ (38mm) | Ф2.5″ (63 mm) | 48″ (1220mm) | 1.61 ft² (0.15 m²) | 23 lbs (10.5 kg) |
| JA-48-SA3S | Ф2″ (51mm) | Ф3.0″ (76 mm) | 2.15 ft² (0.20 m²) | 39.5 lbs (18 kg) | |
| JA-48-SA4S | Ф3″ (76mm) | Ф4.0″ (102 mm) | 3.23 ft² (0.30 m²) | 88.2 lbs (40 kg) | |
| JA-60-SA2 | Ф1.5″ (38mm) | Ф2.5″ (63 mm) | 60″ (1524mm) | 2.1 ft² (0.19 m²) | 28.7 lbs (13 kg) |
| JA-60-SA3 | Ф2″ (51mm) | Ф3.0″ (76 mm) | 2.7 ft² (0.25 m²) | 48.5 lbs (22 kg) | |
| JA-60-SA4 | Ф3″ (76mm) | Ф4.0″ (102 mm) | 4 ft² (0.37 m²) | 108 lbs (49 kg) |
Remarks: All dimensions and weights shown are normal. Non-standard sizes and weights of the anode are available upon request.
