ASTM Extruded Magnesium Rod In Hot Water Tank AZ31B 1.48V
Economical And Practical Extruded Magnesium Anodes Widely Used For Corrosion Protection
Introduction:
Extruded magnesium anodes have high surface to length ratios in relation to cross-sectional dimensions. This allows these anodes to deliver higher current per weight than standard cast magnesium anodes. By delivering more current, extruded anodes can provide effective protection for structures buried in high-resistivity soils.
Features:
The extruded magnesium alloy anode rod adopts a continuous drawing production process. The surface of the product is smooth, without pores and slag inclusions, the potential is greater than 1.48V, the efficiency is greater than 55%, and the bar yield is over 98%.
Chemical composition %:
| Alloy | Al | Mn |
Zn (max) |
Ca (max) |
Si (max) |
Cu (max) |
Ni (max) |
Fe (max) |
Other Imp | |
| each | total | |||||||||
| AZ31B | 2.5-3.5 | 0.2-1.0 | 0.6-1.4 | 0.04 | 0.10 | 0.01 | 0.001 | 0.005 | --- | 0.30 |
| Mg-Mn | 0.01max | 0.5-1.3 | --- | --- | --- | 0.02 | 0.001 | 0.03 | 0.05 | 0.30 |
Extruded rod anodes size specification:
|
Diameter (inch) |
Core eccentric (inch) |
Core diameter (inch) |
Straightness (inch/2 ft length) |
Weight (1bs/inch) |
| 0.675-0.020 | 0.050 | 0.135 | 0.060 | 0.025 |
| 0.750-0.020 | 1/16 | 0.135 | 0.040 | 0.031 |
| 0.800-0.020 | 1/16 | 0.135 | 0.040 | 0.035 |
| 0.840-0.020 | 1/16 | 0.135 | 0.040 | 0.038 |
| 0.900-0.020 | 1/16 | 0.135 | 0.040 | 0.043 |
| 1.050-0.020 | 1/16 | 0.135 | 0.040 | 0.057 |
| 1.315-0.020 | 1/16 | 0.135 | 0.040 | 0.089 |
Application:
The sacrificial magnesium anode equalizes aggressive water action providing cathodic protection for the tank. The anode rod is a very important factor in tank life and should only be removed for inspection or draining. Replacement of the anode rod is recommended when consumption of weight loss is greater than 75%. With regular inspection and replacement of the anode rod, tank life can be greatly extended. The frequency of anode replacement will vary depending on the water conditions and usage.
Photos:
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