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2.2.2 Zinc Alloy Cast Anode

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China CORRTECH Cathodic Protection Technology Company

86-546-8891333, 86-025-86562257, 86-028-86937705, 86-0316-2032161

2.2.2 Zinc Alloy Cast Anode


company	China CORRTECH Cathodic Protection Technology Company
Update	2011-04-20
Original Region	China
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2.2.2 Zinc Alloy Cast Anode

Zinc anode are widely adopted for protecting steel construction from corrosion in seawater and saline mud. The chemical composition of the alloy anode is covered by US MIL-A-18001H and the ASTM-B418 type 1 standard.

Chemical composition

Lead (max)	0.006%
Iron (max)	0.005%
Cadmium	0.025-0.07%
Copper (max)	0.005%
Aluminum	0.1-0.55%
Zinc	Remainder
Potential	-1.10 Volts
Efficiency	95%
Ampere hours / lb	355

Specification of the zinc anode for buried pipeline

Type

Spec.(mm)

Size of Iron Leg (mm)

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