Magnesium Anode

Description:

Magnesium anode is a common sacrificial anode material used in electrochemical cathodic protection engineering. This galvanic anode is connected to steel structures to prevent or slow down rusting. This magnesium sacrificial anode has high chemical activity, its electrode potential is rather negative, and the driving voltage is quite high. Besides, magnesium anode is difficult to form effective protective film on the magnesium surface. In water medium, the protective film is easy to dissolve, and the magnesium self-corrosion is quite strong. Our magnesium sacrificial anode includes pure magnesium, Mg-Mn series alloy and Mg-Al-Zn-Mn series alloy. Corroco can ensure the super electrochemical performance of magnesium anode. In 2003, we successfully produced the biggest Mg anode in the world. Each can weight up to 1000 kg. Now, we are developing a kind of anode which will weight up to 5000 kg.

Application of Magnesium Sacrificial Anode:

The magnesium anode is characterized by small density, big theory electric capacity, low potential negative polarization rate and large driving voltage for iron and steel (> 0.6 V). Magnesium sacrificial anode is suitable for the protection of metal components in soil and water, where the electrical resistivity is higher. Our magnesium anode is mainly used for anticorrosion of buried pipelines, onshore platforms, huge boilers and steel structures.
Prepackaged Mg anode:
CORROCO can also supply prepackaged Mg anode and cable connection special for our clients.
Standard backfill:Gypsum 75% Bentonite 20% Sodium Sulphate 5%.

Chemical Compositions of Cast Magnesium Anodes:

Element		Anode Type
		High Potential	AZ63B(HIA)	AZ63C(HIB)	AZ63D(HIC)	AZ31
Mg		Bal	Bal	Bal	Bal	Bal
Al		<0.01	5.30-6.70	5.30-6.70	5.0-7.0	2.70-3.50
Zn		-	2.50-3.50	2.50-3.50	2.0-4.0	0.70-1.70
Mn		0.50-1.30	0.15-0.70	0.15-0.70	0.15-0.70	0.15-0.60
Si(max)		0.05	0.10	0.30	0.30	0.05
Cu(max)		0.02	0.02	0.05	0.10	0.01
Ni(max)		0.001	0.002	0.003	0.003	0.003
Fe(max)		0.03	0.005	0.005	0.005	0.005
Other Imp.(max)	Each	0.05	-	-	-	-
	Total	0.30	0.30	0.30	0.30	0.30

Specifications of Magnesium Sacrificial Anodes:

Type Item	Open Voltage (-V,SCE)	Close Voltage (-V,SCE)	Actual Capacity (A. h/LB)	Efficiency %
High Potential	1.70-1.78	1.50-1.60	>500	>50
AZ63	1.50-1.55	1.45-1.50	>550	>55
AZ31	1.50-1.55	1.45-1.50	>550	>55

Parameters of Magnesium Anodes:

	Type	Weight Kg(Ib)	Dimension mm(inch)
			A		B	C
D Type	9D2	4.082(9)	69.9(2 3/4)		549.3(21 5/8)	76.2(3)
	14D2	6.350(14)	69.9(2 3/4)		850.9(33 1/2)	76.2(3)
	20D2	9.072(20)	69.9(2 3/4)		1212.9(47 3/4)	76.2(3)
	9D3	4.082(9)	88.9(3 1/2)		352.4(13 7/8)	95.3(3 3/4)
	17D3	7.711(17)	88.9(3 1/2)		641.4(25 1/4)	95.3(3 3/4)
	32D5	14.515(32)	139.7(5 1/2)		504.8(19 7/8)	146.1(5 3/4)
	48D5	21.772(48)	139.7(5 1/2)		765.2(30 1/8)	146.1(5 3/4)
	60D4	27.216(60)	114.3(4 1/2)		114.3(4 1/2)	1460.5(57 1/2)
C Type	Type	Diameter (mm)	Length(mm)			Weight(Kg)
			High Potential		AZ63
	C25	75	336		325	2.56
	C36	114	202		193	3.7
	C41	114	230		220	4.2
	C77	114	431		412	7.8
	C100	114	560		536	10.2
	C145	146	494		472	14.7
	C227	178	520		497	22.9
	C274	114	1528		1462	28.2
S Type	Type	Weight Kg(Ib)	Dimension mm(inch)
			A	B		C	L
	3S3	1.4(3)	3 4/5(96.5)	3(76.2)		3(76.2)	4.7(119.4)
	5S3	2.3(5)	3 4/5(96.5)	3(76.2)		3(76.2)	7.7(195.6)
	9S2	4.1(9)	2 4/5(71.1)	2(50.8)		2(50.8)	28(711.2)
	9S3	4.1(9)	3 4/5(96.5)	3(76.2)		3(76.2)	13.6(345.4)
	17S2	7.7(17)	2 4/5(71.1)	2(50.8)		2(50.8)	52.5(1333.5)
	17S3	7.7(17)	3 4/5(96.5)	3(76.2)		3(76.2)	25.6(650.2)
	17S4	7.7(17)	4(101.6)	3 1/5(81.3)		4(101.6)	18(457.2)
	20S2	9.1(20)	2 4/5(71.1)	2(50.8)		2(50.8)	62(1574.8)
	32S3	14.5(32)	3 4/5(96.5)	3(76.2)		3(76.2)	47(1193.8)
	32S5	14.5(32)	5(127.0)	4 1/5(106.7)		5(127.0)	21.2(538.5)
	40S3	18.1(40)	3 4/5(96.5)	3(76.2)		3(76.2)	60(1524.0)
	48S5	21.8(48)	5(127.0)	4 1/5(106.7)		5(127.0)	31.5(800.1)
	60S4	27.2(60)	4(101.6)	3 1/5(81.3)		4(101.6)	62(1574.8)

Corroco International Industrial Co., Ltd is a professional manufacturer and supplier of magnesium anode (magnesium sacrificial anode) in China. In addition to this galvanic anode, we are also engaged in producing aluminum anode, zinc anode, pure iron anode, etc. Based on 12 years' production experience, our products have been exported to the United States, Canada, Britain, Germany, Iran, Pakistan, India, Kuwait, Dubai, Saudi Arabia, the Philippines, Malaysia, Singapore, Congo, Turkey, etc. They are well received by our clients