Zinc Anode 620 Datasheet — Pro

| Parameter | Value | Test Standard | |----------------------------|--------------------------------|---------------------| | | -1.030 V (vs. Ag/AgCl/Seawater)| ASTM G97 | | Closed Circuit Potential | -0.980 V to -1.010 V (vs. Ag/AgCl) | ASTM G97 | | Effective Current Capacity | 780 A·hr/kg (minimum) | NACE TM0190 | | Actual Consumption Rate | 11.8 kg/A·year | Theoretical | | Anode Efficiency | 95% (Minimum) | NACE TM0190 | | Driving Voltage (vs Steel) | 0.25 V (Seawater) | N/A |

: Designed for offshore structures, marine and port facilities, petrochemical plants, pipelines, and bridges.

The "620" designation typically refers to a specific weight or size class in the marine industry, often weighing approximately 10–12 lbs (4.5–5.5 kg) depending on the specific manufacturer (e.g., Martyr, Camp, or Tecnoseal). Physical Dimensions (Standard) 12 inches (305 mm) Width: 3 inches (76 mm) Thickness: 1.25 inches (32 mm) Bolt Centers: 6 inches (152 mm) — Common for "620" series Weight: ~11.5 lbs (Zinc alloy) Chemical Composition zinc anode 620 datasheet

Approximately 11.2 kg per Ampere-year when operating at 100% efficiency. Efficiency: 90% minimum in standard seawater conditions. 5. Installation and Maintenance Best Practices Surface Preparation

-1.05 Volts relative to a Silver/Silver Chloride (Ag/AgCl) reference electrode. Closed Circuit Potential: -1.03 Volts vs. Ag/AgCl. | Parameter | Value | Test Standard |

Approximately 24.8 lbs (11.2 kg) of zinc per Ampere-year of continuous protection. Efficiency: Typically 90% to 95% in high-salinity seawater. 5. Primary Applications

| Property | Zinc Anode 620 | Aluminum Anode (Al/Zn/In) | Magnesium Anode | |------------------------|------------------------|----------------------------|-----------------------| | (A·hr/kg) | 780 | 2,500 | 1,200 | | Driving Voltage | 0.25V (Low) | 0.30V (Moderate) | 0.70V (High) | | Best For | Seawater, Warm water | Seawater, Mud (Cost effective) | Soil, Fresh water | | Weight for 620 size | 6.2 kg | 2.4 kg (Same volume) | 1.8 kg (Same volume) | The "620" designation typically refers to a specific

Approximately 2.2 kg to 2.8 kg (Gross weight varies based on the steel insert) Insert Types