Magnesium Alloy Anode for Oil Well Casing

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Product Features

We can customize corresponding specifications of sacrificial anode according to customer’s requirements. Our magnesium alloy sacrificial anode is produced of high quality raw material, mature production technology and advanced testing equipment to ensure every anode in line with national standards.

Implementing Standards

GB/T17731-2009 “Magnesium Alloy Sacrificial Anode”

GB/T21488-2008 “Technical Specification for Cathodic Protection of Buried Steel Pipeline”

Application

Applicable to the anti-corrosion protection for the oil well casing.

Chemical Composition

Grade	Alloying Elements				Impurity Elements (no greater than)
Grade	Al	Zn	Mn	Mg	Fe	Cu	Ni	Si	Ca
MGAZ63B	5.3-6.7	2.5-3.5	0.15-0.60	margin	0.003	0.01	0.001	0.08	-
MGAZ31B	2.5-3.5	0.60-1.4	0.20-1.0	margin	0.003	0.01	0.001	0.08	0.04
MGM1C	≤0.01	-	0.50-1.3	margin	0.01	0.01	0.001	0.05	-
MG	≤0.02	≤0.03	≤0.01	≥99.9%	0.005	0.004	0.001	0.01	-

Electrochemical Performance

Grade	Open Circuit Potential	Closed Circuit Potential	Actual Capacitance	Current Efficiency
Grade	-V,Cu/CuSO4	-V,Cu/CuSO4	*-(Ah/kg)**	%
MGAZ63B	1.57-1.67	1.52-1.57	≥1210	≥55
MGAZ31B	1.57-1.67	1.47-1.57	≥1210	≥55
MGM1C	1.77-1.82	1.64-1.69	≥1100	≥50

Standard Specification for Magnesium Anode

Size	Specification	Weight (kg)
Size	*Length(upper bottom+lower bottom)Height*	Weight (kg)
MG-22	700×(130+150)×125	22.00
MG-14	700×(120+100)×102	14.00
MG-11	700×(110+90)×88	11.00
MG-8	700×(95+75)×75	8.00
MG-4	350×(95+75)×75	4.00
MG-2	350×(55+60)×55	2.00
Note: size can also be produced according to customer’s requirements