Zinc Anode for Storage Tank

Zinc Anode for Storage Tank

Aluminum-Zinc-Cadmium series (ZAC Series) is a sacrificial anode casted by high purity zinc and aluminum, cadmium alloy.

This product is approved by CCS and its quality standards is in accordance with the GB/T4950-2002 standard. The zinc anode chemical composition conforms to the standard of US MIL-A-18001H and ASTM-B418 (Type 1). The anode used for pipelines is at the same time in line with SY/T0019-97 ‘Design Code for Sacrificial Anode Cathodic Protection of Buried Steel Pipeline’.

Main Performance

Anode has small autolysis, high current efficiency and excellent self-regulating property when current occurs. Its protection period is long up to 20 to 30 years, generally no ‘over protection’ phenomenon occurring.

Application

Zinc alloy sacrificial anode is used for the metal anti-corrosion cathodic protection of the ships, water ballast tanks, mechanical equipment, marine engineering and port facilities, drilling platform, wharf, seawater condenser, pump in sea water medium as well as the pipes and cables in low resistivity soil.

Specifications of Zinc Anode for Storage Tank

Type	Specification (mm)	Iron Feet Size (mm)			Net Weight (kg)	Gross Weight (kg)
Type	A×(B1+B2)×C	D	F	G	Net Weight (kg)	Gross Weight (kg)
ZC-1	750×(115+135)×130	900	16	8~10	82.0	85.0
ZC-2	500×(115+135)×130	650	16	8~10	55.0	56.0
ZC-3	500×(105+135)×100	650	16	8~10	39.0	40.0
ZC-4	300×(105+135)×100	400	12	8~10	24.6	25.0

Chemical Composition (%)

Chemical Element	Al	Cd	Impurity Element				Zn
Chemical Element	Al	Cd	Fe	Cu	Pb	Si	Zn
Content	0.3~0.6	0.05~0.12	≤0.005	≤0.005	≤0.006	≤0.125	margin

Electrochemical Properties

Electrochemical Properties

Open Circuit Potential

Working Potential

Actual Capacitance

(Ah/kg)

Consumption Rate

(Ah/kg)

Current Effiency

Dissolution Performance

In Sea Water

(1mA/cm2)

-1.09~-1.05

-1.05~-1.08

≥780

≤11.23

≥95

Surface dissolution is even, while the corrosion products are easy to fall off

In Soil

(0.03mA/cm2)

≤-1.05

≤-1.03

≥530

≤17.25

≥65

Zinc Anode for Storage Tank

Zinc Anode for Storage Tank