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Pre-packaged Magnesium Alloy Sacrificial Anodes

Pre-packaged Magnesium Alloy Sacrificial Anodes

Brand: Yafeng

MOQ: 20 Pieces

Delivery time: 7 Day

Magnesium anodes feature low density and a relatively negative anode potential.

They exhibit high driving voltage for iron, low current efficiency, and high electrical charge per unit mass.

They are particularly suitable for high-resistivity media (for resistivities exceeding 100 Ω·m, ribbon-type magnesium anodes are recommended).

Product Details

Magnesium sacrificial anodes are suitable for steel pipelines in soil media such as buried gas transmission pipelines, oil transmission pipelines, and water supply and drainage pipelines. They can also be used for gates and equipment in freshwater environments, making them an ideal sacrificial anode material.

Executive standard

GB/T 17731-2015 Magnesium Alloy Sacrificial Anodes

SY/T0019-97 Design Specification for Cathodic Protection of Buried Steel Pipelines Using Sacrificial Anodes

Pre-packaged magnesium alloy sacrificial anodes represent our company's innovative anode product, developed to meet the demands of high-paced, efficient construction projects. Building upon our previous single-unit sacrificial anodes, this new concept incorporates a complete set of accessories. This design facilitates easier installation, saves time, and better meets customer requirements.

Assembly configuration

One sacrificial anode of any model;

One cable conductor: Welded to the sacrificial anode according to customer-specified length and specifications, sealed with heat-shrink tubing, etc.;

One package of specialized filler material;

One anode storage bag.

Common cable insulation jacket types include: PVC/PVC, XLPE/PVC, HMWPE.

Quality specifications for pre-packaged magnesium anodes: Cable connection resistance < 0.001 Ohm

Cable specifications: 6 mm², 10 mm², and 16 mm².

Cable connection strength: Exceeds 5 times the weight of the assembled anode.

Chemical composition

Model	Chemical Composition (%)
	Alloying elements				Impurity elements, not exceeding
	Al	Zn	Mn	Mg	Fe	Cu	Ni	Si	Ca
MGAZ63B	5.3-6.7	2.5-3.5	0.15-0.60	Residual	0.003	0.01	0.002	0.08	-
MGAZ31B	2.5-3.5	0.60-1.40	0.20-1.00	Residual	0.003	0.01	0.001	0.08	0.4
MGM1C	≤0.01	-	0.50-1.30	Residual	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 properties

Model	Open-circuit voltage	Closed-circuit voltage	Actual capacitance	Current efficiency
Model	-V(Cu/CuSo4)	-V(Cu/CuSo4)	A·h/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

Packing ratio

Filling Material Formula, Weight %				Applicable Conditions
Gypsum Powder (CaSO₄·2H₂O)	Industrial-Grade Sodium Sulfate	Industrial-Grade Magnesium Sulfate	Bentonite	Applicable Conditions
50	0	0	50	≤20Ω.m
25	0	25	50	≤20Ω.m
75	5	0	20	≤20Ω.m
15	15	20	50	≤20Ω.m
15	0	35	50	≤20Ω.m

Specfication and model

Model	Dimensions (L x W x H) mm	Bare Magnesium Anode Weight / kg
MG-4	50x(75+85)x80	4±0.2
MG-8	700x(75+85)x80	8士0.2
MG-11	700x(90+100)x90	11±0.3
MG-14	700x(100+110)x105	14±0.3
MG-22	700x(130+150)x125	22士0.5

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