Alloy Specifications

Performance - Martyr I & Martyr II Anodes

 

SPECIFICATIONS MARTYR I
ZINC ANODES
MARTYR II
ALUMINUM ANODES
CAPACITY, ampere-hours per pound 355 1225
EFFICIENCY (test) 95% 94%
CONSUMPTION, pound per ampere-year 24.5lbs 7.6lbs
POTENTIAL (reference Cu/Cu SO4) -1050mV -1100mV

 

 

Composition - Martyr I & Martyr II Anodes

 

COMPOSITION

U.S. Military Specification*

MIL-DTL-18001KL

Martyr I  Zinc Alloy

U.S. Military Specification*

MIL-DTL-24779C

Martyr II
Aluminum Alloy

Cadmium 0.025% - 0.07% -
Copper 0.005% Max. 0.005% Max.
Iron 0.005% Max. 0.080% Max.
Indium - 0.015% - 0.020%
Lead 0.006% Max. -
Mercury - 0.001% Max.
Silicon - 0.08% Max
Aluminum 0.1% - 0.5% Remainder
Tin   0.001% Max
Others   0.10% Max total (0.020% max. each)
Zinc** Remainder 4.0% - 6.5%

 

 

Comparison between Martyr I & Martyr II Anodes

 

Martyr I (Zinc Anodes)

 

Martyr II (Aluminum Anodes)

 

355 Ampere hours per pound 1225 Ampere hours per pound
This means a Zinc anode will give one amp for 355 hours  for every pound of Zinc This means an Aluminum anode will give one amp for 1225 hours for every pound of Aluminum
Take a typical Z3 (weight=4.68 kg) Take a typical AZ3 (weight = 2.7 kg)
Total ampere hours 3656 Total ampere hours 6125
Assuming the anode performs at 0.5 amp Assuming the anode performs at 0.5 amp
This anode will last for 7312 hours This anode will last for 12250 hours
Which is 304 daysWhich is 10 months Which is 510 daysWhich is 16.5 months