Element | ASTM A518 / A518M | BS 1591 1975 |
Grade 1 (Si - Fe) | Grade 3 (Si - Fe - Cr) |
Carbon | 0.65 - 1.10% | 0.70 - 1.10% | 1.40% Max. |
Manganese | 1.50% Max. | 1.50% Max. | 0.50% Max. |
Silicon | 14.20 - 14.75% | 14.20 - 14.75% | 14.25 - 15.25% |
Chromium | 0.50% Max. | 3.25 - 5.00% | 0.50% Max. |
Molybdenum | 0.50% Max. | 0.20% Max. | -- |
Copper | 0.50% Max. | 0.50% Max. | -- |
Sulphur | -- | -- | 0.10% Max. |
Phosphorus | -- | -- | 0.25% Max. |
Iron | Remainder | Remainder | Remainder |
HSCI anode is made from the iron alloy which contains 14% to 18% silicon with excellent performance of acid and alkalis resistance. A porous and semi-conductive film of silicon dioxide (SiO₂) forms on the exterior of the anodes to reduce the rate of consumption.
ASTM A518 Grade 3 alloy is particularly suited for electrolytes rich with chloride ions, where the level of chromium is elevated to enhance anode performance.
Environment | Nominal Current Density | Consumption Rate | Note |
Soil / Fresh Water | 2.0 - 5.0 A/m2 | 0.1 - 0.5 kg/A-y | Avoid: Dry Soils High pH Value High Sulfate
Consider during design: Brittle Chrome Alloy - Chloride Environment
|
0.2 - 0.5 A/ft2 | 0.2 - 1.2 lbs/A-y |
Carbon Backfill | 5.0 - 10 A/m2 | 0.05 - 0.3 kg/A-y |
0.5 - 1.0 A/ft2 | 0.1 - 0.7 lbs/A-y |
Seawater | 10 - 50 A/m2 | 0.3 - 0.5 kg/A-y |
1.0 - 5.0 A/ft2 | 0.7 - 1.0 lbs/A-y |
Specification of High Silicon Cast Iron Anodes - Tubular anodes
Jennings Anodes HSCI Tubular anodes (TA Series) are manufactured using a Centrifugal Chill Cast method. No other method consistently produces tubular anodes with a superior metallic structure than this proven route.
Product Features
- Casting integrity achieved through one directional solidification. Centrifugal Castings are cast using a spinning mold rotating at over a 1000 RPM, on cooling centrifugal castings only cool from the outside diameter to the inside diameter. This ensures the walls of the casting are denser and purer than other casting methods. The anode therefore is made up from a dense, homogenous metal matrix, with no gas inclusions, no porosity and no shrinkage.
- Impact resistance. The centrifugal casting in a chill or steel mold ensures greater density and integrity resulting in a stronger anode with improved impact resistance helping to avoid anode breakage during handling and installation.
- A low consumption rate. A stippled effect outer surface leads to a large surface area in comparison to anode weight thus reducing the anode current density, giving 30% more amp-years than conventional stick anodes.
- Longer life expectancy. Excellent performance proven by 3rd Party Accelerated Corrosion Testing.
- Low cable connector resistance. A low resistivity (less than 0.001 Ohms) zinc Wedge-lock center connection ensures a balanced spread of current throughout the length of the anode, extending anode lift and resulting in a reliable current discharge to the surrounding environment. The connection is resin encapsulated using a high-quality Epoxy Resin to ensure eradication of moisture ingress.
- Ease of connection. A unique cable connection device can be provided for easy and efficient installation. 200 pcs can be connected by 2 people in less than 8 Hours.
Anode Model | Anode Weight | Diameter | Overall Length | Surface Area |
JA - 60 - TA2S | 32.80lbs (14.90kg) | Ф2.28" (58mm) | 60" (1524mm) | 3.0sq.ft. (0.28m²) |
JA - 60 - TA3S | 44.90lbs (20.40kg) | Ф2.80" (71mm) | 3.6sq.ft. (0.34m²) |
JA - 60 - TA4S | 61.70lbs (28.00kg) | Ф3.80" (97mm) | 5.0sq.ft. (0.46m²) |
JA - 60 - TA5AS
| 124.90lbs (56.70kg)
| Ф4.80" (122mm)
| 6.3sq.ft. (0.59m²)
|
Anode Model | Anode Weight | Diameter | Overall Length | Surface Area |
JA - 84 - TA2 | 46.30lbs (20.90kg) | Ф2.28" (58mm) | 84" (2133mm) | 4.2sq.ft. (0.39m²) |
JA - 84 - TA3 | 63.05lbs (28.60kg) | Ф2.80" (71mm) | 5.1sq.ft. (0.48m²) |
JA - 84 - TA4 | 86.00lbs (39.20kg) | Ф3.80" (96mm) | 6.9sq.ft. (0.64m²) |
JA - 84 - TA5A | 175.00lbs (79.50kg) | Ф4.80" (122mm) | 8.8sq.ft. (0.82m²) |
- All weights and dimensions are nominal and subject to variation in material compositions and Jennings Anodes foundry tolerance.
- Above standard sizes are available at Jennings Anodes warehouse. Other configurations are available upon special request.
- Configurations include bare anodes connected with lead cable/wire, pre-packaged in coke backfills and assembled in a strung.
Please kindly contact Jennings Anodes Sales Representatives for further assistance with high silicon cast iron anodes.
Anode Configuration
Jennings Anodes TA Anodes can be supplied bare, with a specified cable center connected. Cable can be either in a single length or tubular anodes can be connected in a string formation. Anode can also be supplied cable connected and pre-packed in galvanized steel canisters.
Ordering Information
- Anode Model*
- Anode Configuration
- Quantity*
- Delivery Address* (Estimated Shipping Cost)
Jennings Anodes casting process ensures the ultimate performance of the anode and the life of the high silicon cast iron anode. Our internal testing standards and the 3rd party tests are performed to guarantee high quality of the products. Every anode is stamped with a unique serial number for quality tracking and after-sale service.
Testing | Chemical Composition | Physical Appearance |
Standard | ISO 9001 Quality Management System and Foundry Internal Quality Standard |
ASTM E350 | ASTM E186/E446, Foundry ITP |
Testing Item | Chemical Analysis | Anode Surface, Finish and Appearance (Oxide Slag, Internal Shrinkage, Gas Porosity, Crack, Non-metallic inclusion etc.) Anode Size, Unit Weight Lead Wire / Cable Specification, Pulling Tension of Lead Wire / Cable Connection Epoxy Resin Sealing, Connection Resistance, Drop Impact test etc. Transverse Bend Test (available upon request) |
Equipment & Devices | Optical Emission Spectrometer Labspark 750A, Thermoscientific Niton XL2-980 | Visual Inspection, Calipers, Tap Measure, Scale, Tensile Tester etc. |
According to ASTM sampling practice, anode samples are taken before and after every heat. Quality Assurance and Quality Control procedures are employed and strictly implemented to guarantee the performance of Jennings Anodes products.
Testing reports are enclosed in the shipping documents for each order. The 3rd party testing is conducted by customer’s special request at extra charge.
Jennings Anodes has strict packing standards to guarantee safe delivery of all our products, including high silicon cast iron anodes. Clear shipping marks and documentation make it easier for acceptance of the order.
Anode Model | Unit of Measurement | Packing Details |
Number of Anodes per Crate/Pallet | Crate/Pallet Dimension | Net Weight | Gross Weight | Number of Crates/Pallet per 20ft. Container |
JA - 60 - TA2S | EA | 63 | 63" × 26" × 27.5"
(1600 × 650 × 700mm) | 2072lbs (945kg) | 2194lbs (1005kg) | 21 |
JA - 60 - TA3S | 48 | 63" × 27" × 27.5"
(1600 × 690 × 700mm) | 2161lbs (985kg) | 2304lbs (1050kg) | 20 |
JA - 60 - TA4S | 36 | 63" × 27" × 33"
(1600 × 690 × 850mm) | 2227lbs (1008kg) | 2370lbs (1075kg) | 20 |
JA - 60 - TA5AS | 16 | 63" × 24" × 29" (1600 × 600 × 730mm) | 2006lbs (910kg) | 2127lbs (965kg) | 22 |
Anode Model | Unit of Measurement | Packing Details |
Number of Anodes per Crate/Pallet | Crate/Pallet Dimension | Net Weight | Gross Weight | Number of Crates/Pallets per 20ft. Container |
JA - 84 - TA2 | EA | 63 | 87" × 26" × 27.5"
(2210 × 650 × 700mm) | 2910lbs (1323kg) | 3075lbs (1395kg) | 15 |
JA - 84 - TA3 | 48 | 87" × 27" × 27.5"
(2210 × 690 × 700mm) | 3031lbs (1390kg) | 3197lbs (1465kg) | 15 |
JA - 84 - TA4 | 34 | 87" × 27" × 33"
(2210 × 690 × 850mm) | 2954lbs (1340kg) | 3120lbs (1415kg) | 15 |
JA - 84 - TA5A | 25 | 87" × 24" × 29"
(2210 × 720 × 870mm) | 2822lbs (1250kg) | 2998lbs (1330kg) | 16 |
Custom packing is available upon request.
Shipping Documents
- Proforma Invoice
- Packing List
- Testing Reports (Chemical Composition, Electrochemical Properties Test, Certificate of Compliance)
- Others upon request (Certificate of Origin etc.)